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Convert Millilamberts to Stilbs

Millilambert (mL) to Stilb (sb) luminance conversion — enter any value below to get an instant result, or use the table for common values.

Results from this calculator are estimates provided for general informational purposes only, based on formulas, rates, and standards commonly accepted as of 2026. Figures may differ slightly from other calculators or professional sources due to rounding methods, differing assumptions, or regional regulations, and rules may change over time. Always consult a qualified professional — such as a financial advisor, healthcare provider, or other relevant specialist — before making decisions based on these results.

The numeric value you want to convert. Decimals are accepted.

Result

1 mL = 0.00031830989 sb

1 Millilambert = 0.00031830989 Stilbs

1 Stilb = 3141.5927 Millilamberts

1 mL in every supported unit

Conversion chart: Millilambert to Stilbs

Conversion table

Millilambert (mL) Stilb (sb)
0.01 mL 3.1831E-06 sb
0.1 mL 3.1831E-05 sb
1 mL 0.00031830989 sb
2 mL 0.00063661977 sb
3 mL 0.00095492966 sb
5 mL 0.0015915494 sb
10 mL 0.0031830989 sb
20 mL 0.0063661977 sb
50 mL 0.015915494 sb
100 mL 0.031830989 sb
1000 mL 0.31830989 sb

Millilambert (mL)

Definition: One-thousandth of a lambert, offering a more practically sized CGS luminance unit for typical indoor and screen-brightness magnitudes than the full lambert.

History: Introduced as the lambert proved too large a unit for everyday luminance readings — most real-world surfaces and early cathode-ray displays measured in the millilambert range rather than whole lamberts.

Current use: Historically used in early display and photometric engineering, including some vintage radar and oscilloscope screen brightness specifications, before nits and foot-lamberts became standard.

Stilb (sb)

Definition: A CGS-system luminance unit equal to one candela per square centimeter, making it numerically identical to that unit but treated historically as its own named unit.

History: Introduced in the early 20th century as part of the centimeter-gram-second (CGS) system of photometric units, before the SI system standardized on candela per square meter as the base luminance unit.

Current use: Now largely obsolete in everyday use but still occasionally encountered in older European scientific literature and legacy photometric instrumentation calibrated to the CGS system.

Supported Units

Unit Symbol In cd/m²
Candela per Square Meter cd/m² 1 cd/m²
Candela per Square Centimeter cd/cm² 10000 cd/m²
Candela per Square Foot cd/ft² 10.76391 cd/m²
Candela per Square Inch cd/in² 1550.0031 cd/m²
Kilocandela per Square Meter kcd/m² 1000 cd/m²
Stilb sb 10000 cd/m²
Lumen per Square Meter per Steradian lm/m²/sr 1 cd/m²
Lumen per Square Centimeter per Steradian lm/cm²/sr 10000 cd/m²
Lumen per Square Foot per Steradian lm/ft²/sr 10.76391 cd/m²
Watt per Square Centimeter per Steradian (at 555 nm) W/cm²/sr 6830000 cd/m²
Nit nt 1 cd/m²
Millinit mnt 0.001 cd/m²
Lambert L 3183.0989 cd/m²
Millilambert mL 3.1830989 cd/m²
Foot-Lambert fL 3.4262591 cd/m²
Apostilb asb 0.31830989 cd/m²
Blondel bd 0.31830989 cd/m²
Bril bril 3.1831E-08 cd/m²
Skot sk 0.0003183099 cd/m²

About These Parameters

Value
The luminance value you want to convert, expressed in the "From" unit. Accepts decimals, so you can enter anything from a faint scotopic reading in skots to a display's rated brightness in nits.
From Unit
The unit your input value is currently measured in — a monitor spec sheet's nits, a cinema calibration report's foot-lamberts, or a scientific instrument's candela per square meter.
To Unit
The unit you want the result converted into. Use the swap button to flip From and To instantly and compare figures across display, cinema, and scientific contexts.

How Luminance Conversion Works

The Formula

Every unit here is defined by a fixed multiplier relative to candela per square meter. To convert a value from one unit to another:

result = value × (factor of "From" unit ÷ factor of "To" unit)

For Millilambert → Stilb: multiply by 0.00031830989. For example, 1 mL × 0.00031830989 = 0.00031830989 sb.

Nits vs. Candela per Square Meter

A nit and a candela per square meter are exactly the same physical quantity — "nit" is simply the shorter, everyday name adopted by the display and consumer electronics industry. When a phone, TV, or monitor spec sheet quotes "1,000 nits," that number is identical to 1,000 cd/m² in a scientific paper. The two names exist for context, not physics: engineers and physicists tend to write cd/m², while marketing copy, review sites, and display datasheets almost universally write nits.

CGS vs. SI Luminance Units

Several units on this page — the stilb, lambert, apostilb, blondel, bril, and skot — predate the modern SI system and come from the centimeter-gram-second (CGS) system of photometric units used in early 20th-century physics. They were built around the idea of a perfectly diffusing ("Lambertian") surface rather than the candela directly, which is why their conversion factors to cd/m² involve π-related constants (a lambert, for instance, equals 1/π candela per square centimeter). Most of these CGS units have been superseded by candela-per-square-meter and its nit alias in modern engineering, but they still surface in legacy scientific literature, older photometric instruments, and specialized fields like vision research that never fully migrated to SI.

Example

A luminance of 1 mL equals 0.00031830989 sb. For scale, a typical smartphone screen runs around 500-1,000 nits, a calibrated cinema screen is set to roughly 14-16 foot-lamberts, an overcast sky reads around 2,000-4,000 cd/m², and the full moon's surface luminance is only about 2,500 cd/m² despite looking far brighter against a dark night sky.

Frequently Asked Questions

How many Stilbs are in 1 Millilambert?

1 Millilambert (mL) equals exactly 0.00031830989 Stilbs (sb).

What's the difference between luminance and brightness?

Luminance is the objective, physically measured quantity — candela per square meter, or nits — while "brightness" is often used loosely to describe the subjective perception of how light a surface looks, which also depends on surrounding contrast and the viewer's eye adaptation. Luminance is what a light meter measures; brightness is what a person reports seeing.

Is a nit the same as a candela per square meter?

Yes — a nit and a candela per square meter (cd/m²) are exactly the same unit under two different names. "Nit" is the informal name used throughout the display and consumer electronics industry, while cd/m² is the formal SI name used in scientific and engineering contexts.

Why do cinema screens use foot-lamberts instead of nits?

The film and projection industry standardized on foot-lamberts decades before nits became common in consumer electronics, and SMPTE calibration standards for theatrical and home-theater screens (typically 14-16 foot-lamberts) are still written in that unit today. Converting to nits (1 fL ≈ 3.43 cd/m²) shows that cinema screens are actually much dimmer than a modern smartphone or TV display, which is intentional for a dark viewing room.

Why are there so many old CGS luminance units like the stilb and apostilb?

Before the SI system standardized photometry around the candela and candela-per-square-meter in the mid-20th century, different countries and scientific traditions developed their own luminance units within the centimeter-gram-second (CGS) system — the stilb and lambert in general use, the apostilb and its French-system twin the blondel for illuminated surfaces, and the extremely small bril and skot for vision research into low-light perception. Most have fallen out of everyday use but still appear in older instruments, legacy literature, and specialized scientific fields.

How accurate are these conversions?

Every conversion factor used here is the exact, internationally recognized relationship between the underlying luminance units — results are limited only by floating-point display precision, not by rounded conversion constants.

Convert Millilambert to Other Luminance Units

Millilambert to Candela per Square Meter Millilambert to Candela per Square Centimeter Millilambert to Candela per Square Foot Millilambert to Candela per Square Inch Millilambert to Kilocandela per Square Meter Millilambert to Stilbs Millilambert to Lumens per Square Meter per Steradian Millilambert to Lumens per Square Centimeter per Steradian Millilambert to Lumens per Square Foot per Steradian Millilambert to Watts per Square Centimeter per Steradian (at 555 nm) Millilambert to Nits Millilambert to Millinits Millilambert to Lamberts Millilambert to Foot-Lamberts Millilambert to Apostilbs Millilambert to Blondels Millilambert to Brils Millilambert to Skots

Possible Luminance Conversions

Stilb to Lumens per Square Meter per Steradian Kilocandela per Square Meter to Candela per Square Inch Candela per Square Inch to Watts per Square Centimeter per Steradian (at 555 nm) Blondel to Millinits Lumen per Square Foot per Steradian to Kilocandela per Square Meter Kilocandela per Square Meter to Brils Bril to Lumens per Square Centimeter per Steradian Lumen per Square Foot per Steradian to Stilbs Stilb to Millilamberts Lumen per Square Foot per Steradian to Lamberts Bril to Millilamberts Candela per Square Meter to Lumens per Square Foot per Steradian Lumen per Square Centimeter per Steradian to Lumens per Square Meter per Steradian Candela per Square Meter to Nits Millinit to Lamberts Lumen per Square Foot per Steradian to Foot-Lamberts Candela per Square Meter to Stilbs Lumen per Square Foot per Steradian to Lumens per Square Meter per Steradian Candela per Square Centimeter to Lumens per Square Centimeter per Steradian Millinit to Millilamberts Skot to Candela per Square Centimeter Apostilb to Candela per Square Foot Lumen per Square Foot per Steradian to Watts per Square Centimeter per Steradian (at 555 nm) Stilb to Millinits Apostilb to Millilamberts Bril to Lamberts Foot-Lambert to Brils Stilb to Lamberts Foot-Lambert to Kilocandela per Square Meter Candela per Square Centimeter to Lamberts Lambert to Millinits Kilocandela per Square Meter to Nits Candela per Square Meter to Candela per Square Centimeter Millilambert to Foot-Lamberts Candela per Square Meter to Foot-Lamberts Candela per Square Meter to Millinits Candela per Square Foot to Candela per Square Centimeter Blondel to Watts per Square Centimeter per Steradian (at 555 nm) Skot to Watts per Square Centimeter per Steradian (at 555 nm) Kilocandela per Square Meter to Candela per Square Centimeter Watt per Square Centimeter per Steradian (at 555 nm) to Candela per Square Meter Bril to Nits Millinit to Watts per Square Centimeter per Steradian (at 555 nm) Candela per Square Foot to Stilbs Lumen per Square Centimeter per Steradian to Foot-Lamberts Lumen per Square Centimeter per Steradian to Candela per Square Meter Apostilb to Nits Stilb to Candela per Square Centimeter Watt per Square Centimeter per Steradian (at 555 nm) to Millinits Bril to Candela per Square Inch Kilocandela per Square Meter to Millilamberts Candela per Square Centimeter to Nits Lumen per Square Centimeter per Steradian to Kilocandela per Square Meter Lambert to Skots Candela per Square Foot to Brils Kilocandela per Square Meter to Foot-Lamberts Candela per Square Centimeter to Lumens per Square Foot per Steradian Candela per Square Foot to Lumens per Square Centimeter per Steradian Candela per Square Foot to Kilocandela per Square Meter Lambert to Blondels Stilb to Lumens per Square Centimeter per Steradian Nit to Lumens per Square Centimeter per Steradian Millilambert to Brils Millilambert to Lamberts Apostilb to Stilbs Bril to Lumens per Square Foot per Steradian Nit to Apostilbs Lambert to Candela per Square Centimeter Lambert to Foot-Lamberts Stilb to Lumens per Square Foot per Steradian Candela per Square Centimeter to Candela per Square Foot Candela per Square Foot to Lumens per Square Meter per Steradian Candela per Square Meter to Lamberts Apostilb to Brils Millinit to Lumens per Square Foot per Steradian Blondel to Lumens per Square Centimeter per Steradian Watt per Square Centimeter per Steradian (at 555 nm) to Nits Watt per Square Centimeter per Steradian (at 555 nm) to Lumens per Square Foot per Steradian Lumen per Square Meter per Steradian to Millilamberts Millinit to Lumens per Square Centimeter per Steradian Skot to Millilamberts Candela per Square Foot to Nits Apostilb to Kilocandela per Square Meter Candela per Square Inch to Lumens per Square Centimeter per Steradian Blondel to Candela per Square Foot Blondel to Candela per Square Centimeter Lumen per Square Centimeter per Steradian to Blondels Watt per Square Centimeter per Steradian (at 555 nm) to Skots Lumen per Square Foot per Steradian to Millinits Lambert to Watts per Square Centimeter per Steradian (at 555 nm) Foot-Lambert to Candela per Square Meter Skot to Candela per Square Inch Lambert to Candela per Square Foot Millinit to Blondels Nit to Lumens per Square Foot per Steradian Watt per Square Centimeter per Steradian (at 555 nm) to Candela per Square Inch Lambert to Lumens per Square Meter per Steradian Skot to Nits Nit to Blondels Nit to Foot-Lamberts Candela per Square Centimeter to Kilocandela per Square Meter Candela per Square Centimeter to Lumens per Square Meter per Steradian Stilb to Blondels Bril to Candela per Square Centimeter Lumen per Square Centimeter per Steradian to Stilbs Bril to Stilbs Lambert to Nits Candela per Square Centimeter to Candela per Square Meter Nit to Millilamberts Candela per Square Foot to Lumens per Square Foot per Steradian Candela per Square Meter to Lumens per Square Centimeter per Steradian Candela per Square Foot to Millilamberts Candela per Square Centimeter to Apostilbs Lumen per Square Foot per Steradian to Lumens per Square Centimeter per Steradian Bril to Foot-Lamberts Lumen per Square Centimeter per Steradian to Watts per Square Centimeter per Steradian (at 555 nm) Kilocandela per Square Meter to Lumens per Square Meter per Steradian Lumen per Square Centimeter per Steradian to Nits Blondel to Foot-Lamberts Nit to Skots Millilambert to Skots Lumen per Square Meter per Steradian to Lumens per Square Centimeter per Steradian Blondel to Candela per Square Meter Blondel to Brils Blondel to Millilamberts Millinit to Brils Candela per Square Centimeter to Skots Lumen per Square Meter per Steradian to Lamberts Foot-Lambert to Nits Millinit to Lumens per Square Meter per Steradian Millinit to Candela per Square Inch Skot to Kilocandela per Square Meter Kilocandela per Square Meter to Skots Millinit to Nits Lambert to Lumens per Square Foot per Steradian Candela per Square Meter to Candela per Square Foot Candela per Square Foot to Blondels Millinit to Kilocandela per Square Meter Apostilb to Candela per Square Inch Skot to Stilbs Kilocandela per Square Meter to Watts per Square Centimeter per Steradian (at 555 nm) Millilambert to Apostilbs Candela per Square Inch to Blondels Lambert to Brils Blondel to Lumens per Square Foot per Steradian Bril to Watts per Square Centimeter per Steradian (at 555 nm) Candela per Square Foot to Skots Kilocandela per Square Meter to Millinits Candela per Square Meter to Millilamberts Bril to Millinits Lumen per Square Foot per Steradian to Candela per Square Meter Candela per Square Inch to Lumens per Square Foot per Steradian Blondel to Kilocandela per Square Meter Foot-Lambert to Millilamberts Stilb to Kilocandela per Square Meter Millinit to Candela per Square Centimeter Kilocandela per Square Meter to Stilbs Watt per Square Centimeter per Steradian (at 555 nm) to Blondels Lumen per Square Foot per Steradian to Apostilbs Blondel to Nits Millilambert to Candela per Square Inch Foot-Lambert to Stilbs Nit to Stilbs Bril to Apostilbs Blondel to Skots Stilb to Candela per Square Foot Bril to Skots Nit to Kilocandela per Square Meter Kilocandela per Square Meter to Candela per Square Meter Skot to Blondels Blondel to Lumens per Square Meter per Steradian Lumen per Square Centimeter per Steradian to Apostilbs Nit to Candela per Square Foot Watt per Square Centimeter per Steradian (at 555 nm) to Lamberts Apostilb to Lumens per Square Foot per Steradian Stilb to Watts per Square Centimeter per Steradian (at 555 nm) Kilocandela per Square Meter to Lumens per Square Centimeter per Steradian Lumen per Square Meter per Steradian to Candela per Square Meter Millilambert to Stilbs Lumen per Square Meter per Steradian to Candela per Square Foot Foot-Lambert to Lumens per Square Centimeter per Steradian Apostilb to Candela per Square Meter Candela per Square Inch to Candela per Square Meter Kilocandela per Square Meter to Lamberts Candela per Square Foot to Lamberts Candela per Square Centimeter to Millinits Lumen per Square Foot per Steradian to Candela per Square Centimeter Lumen per Square Meter per Steradian to Millinits Apostilb to Millinits Nit to Candela per Square Meter Millinit to Apostilbs Lumen per Square Centimeter per Steradian to Millinits Candela per Square Foot to Watts per Square Centimeter per Steradian (at 555 nm) Candela per Square Inch to Lamberts Lumen per Square Meter per Steradian to Candela per Square Inch Lumen per Square Meter per Steradian to Skots Lambert to Apostilbs Watt per Square Centimeter per Steradian (at 555 nm) to Brils Kilocandela per Square Meter to Apostilbs Lumen per Square Foot per Steradian to Candela per Square Foot Nit to Millinits Millilambert to Candela per Square Meter Millilambert to Blondels Nit to Lumens per Square Meter per Steradian Foot-Lambert to Blondels Candela per Square Meter to Blondels Apostilb to Candela per Square Centimeter Lumen per Square Centimeter per Steradian to Millilamberts Watt per Square Centimeter per Steradian (at 555 nm) to Kilocandela per Square Meter Foot-Lambert to Lumens per Square Foot per Steradian Candela per Square Foot to Apostilbs Stilb to Candela per Square Inch Watt per Square Centimeter per Steradian (at 555 nm) to Candela per Square Centimeter Blondel to Apostilbs Lumen per Square Centimeter per Steradian to Candela per Square Foot Apostilb to Lumens per Square Centimeter per Steradian Candela per Square Foot to Candela per Square Inch Candela per Square Centimeter to Stilbs Apostilb to Skots Candela per Square Meter to Candela per Square Inch Candela per Square Inch to Stilbs Watt per Square Centimeter per Steradian (at 555 nm) to Stilbs Lumen per Square Centimeter per Steradian to Candela per Square Centimeter Lambert to Lumens per Square Centimeter per Steradian Blondel to Stilbs Lumen per Square Meter per Steradian to Blondels Lumen per Square Foot per Steradian to Brils Watt per Square Centimeter per Steradian (at 555 nm) to Lumens per Square Centimeter per Steradian Watt per Square Centimeter per Steradian (at 555 nm) to Apostilbs Stilb to Brils Kilocandela per Square Meter to Candela per Square Foot Millilambert to Lumens per Square Foot per Steradian Stilb to Apostilbs Candela per Square Meter to Lumens per Square Meter per Steradian Lambert to Candela per Square Meter Stilb to Nits Apostilb to Lamberts Stilb to Foot-Lamberts Candela per Square Inch to Apostilbs Skot to Lamberts Millilambert to Nits Kilocandela per Square Meter to Lumens per Square Foot per Steradian Watt per Square Centimeter per Steradian (at 555 nm) to Millilamberts Lumen per Square Meter per Steradian to Candela per Square Centimeter Bril to Kilocandela per Square Meter Lumen per Square Centimeter per Steradian to Skots Candela per Square Inch to Brils Nit to Lamberts Millilambert to Millinits Apostilb to Watts per Square Centimeter per Steradian (at 555 nm) Foot-Lambert to Candela per Square Foot Foot-Lambert to Millinits Lumen per Square Centimeter per Steradian to Brils Skot to Brils Lumen per Square Meter per Steradian to Apostilbs Bril to Candela per Square Meter Foot-Lambert to Lumens per Square Meter per Steradian Millinit to Candela per Square Meter Candela per Square Inch to Candela per Square Centimeter Lumen per Square Meter per Steradian to Nits Lumen per Square Meter per Steradian to Brils Candela per Square Meter to Apostilbs Lumen per Square Foot per Steradian to Millilamberts Candela per Square Inch to Lumens per Square Meter per Steradian Candela per Square Inch to Foot-Lamberts Skot to Millinits Millinit to Stilbs Stilb to Skots Kilocandela per Square Meter to Blondels Skot to Foot-Lamberts Skot to Lumens per Square Foot per Steradian Candela per Square Centimeter to Candela per Square Inch Lumen per Square Meter per Steradian to Stilbs Apostilb to Blondels Candela per Square Inch to Millilamberts Foot-Lambert to Watts per Square Centimeter per Steradian (at 555 nm) Skot to Lumens per Square Meter per Steradian Candela per Square Inch to Nits Candela per Square Inch to Millinits Nit to Candela per Square Inch Blondel to Lamberts Millinit to Foot-Lamberts Millilambert to Watts per Square Centimeter per Steradian (at 555 nm) Watt per Square Centimeter per Steradian (at 555 nm) to Foot-Lamberts Millilambert to Kilocandela per Square Meter Lumen per Square Meter per Steradian to Lumens per Square Foot per Steradian Stilb to Candela per Square Meter Nit to Watts per Square Centimeter per Steradian (at 555 nm) Candela per Square Inch to Kilocandela per Square Meter Millilambert to Candela per Square Centimeter Bril to Candela per Square Foot Apostilb to Foot-Lamberts Candela per Square Foot to Candela per Square Meter Skot to Apostilbs Millinit to Candela per Square Foot Candela per Square Centimeter to Millilamberts Candela per Square Meter to Kilocandela per Square Meter Lambert to Kilocandela per Square Meter Watt per Square Centimeter per Steradian (at 555 nm) to Lumens per Square Meter per Steradian Candela per Square Centimeter to Watts per Square Centimeter per Steradian (at 555 nm) Lambert to Candela per Square Inch Lumen per Square Centimeter per Steradian to Lumens per Square Foot per Steradian Lumen per Square Meter per Steradian to Kilocandela per Square Meter Lumen per Square Centimeter per Steradian to Lamberts Lumen per Square Foot per Steradian to Nits Lumen per Square Foot per Steradian to Candela per Square Inch Candela per Square Foot to Millinits Blondel to Candela per Square Inch Candela per Square Centimeter to Blondels Bril to Blondels Candela per Square Foot to Foot-Lamberts Foot-Lambert to Skots Millilambert to Lumens per Square Centimeter per Steradian Millinit to Skots Millilambert to Lumens per Square Meter per Steradian Lumen per Square Meter per Steradian to Foot-Lamberts Candela per Square Meter to Skots Lumen per Square Centimeter per Steradian to Candela per Square Inch Foot-Lambert to Candela per Square Inch Watt per Square Centimeter per Steradian (at 555 nm) to Candela per Square Foot Apostilb to Lumens per Square Meter per Steradian Lumen per Square Foot per Steradian to Blondels Bril to Lumens per Square Meter per Steradian Candela per Square Centimeter to Foot-Lamberts Lumen per Square Meter per Steradian to Watts per Square Centimeter per Steradian (at 555 nm) Nit to Brils Candela per Square Inch to Candela per Square Foot Candela per Square Meter to Brils Millilambert to Candela per Square Foot Skot to Candela per Square Meter Foot-Lambert to Apostilbs Lambert to Millilamberts Foot-Lambert to Candela per Square Centimeter Candela per Square Meter to Watts per Square Centimeter per Steradian (at 555 nm) Skot to Lumens per Square Centimeter per Steradian Skot to Candela per Square Foot Candela per Square Centimeter to Brils Candela per Square Inch to Skots Lumen per Square Foot per Steradian to Skots Foot-Lambert to Lamberts Nit to Candela per Square Centimeter Lambert to Stilbs

See also