CalculatorBoom

Convert None (base unit) to Yotta

None (base unit) (—) to Yotta (Y) SI prefix 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 — = 1E-24 Y

1 None (base unit) = 1E-24 Yotta

1 Yotta = 1E+24 None (base unit)

1 — in every supported prefix

Conversion chart: None (base unit) to Yotta

Conversion table

None (base unit) (—) Yotta (Y)
0.01 — 1E-26 Y
0.1 — 1E-25 Y
1 — 1E-24 Y
2 — 2E-24 Y
3 — 3E-24 Y
5 — 5E-24 Y
10 — 1E-23 Y
20 — 2E-23 Y
50 — 5E-23 Y
100 — 1E-22 Y
1000 — 1E-21 Y

None (base unit) (—)

Definition: The unprefixed base value — a multiplier of exactly 1, representing a quantity with no SI prefix attached at all (e.g. a plain gram, meter, or watt rather than a kilogram, kilometer, or milliwatt).

History: This isn't a historical unit in its own right — it's simply the reference point the entire SI prefix ladder is built around, against which every prefix above and below is defined as a power of ten.

Current use: Used as the baseline whenever a quantity is expressed without any prefix, and as the anchor point for converting any other prefix on this page to any other.

Yotta (Y)

Definition: The largest classical SI prefix, denoting a factor of 10²⁴ — a septillion (in the short-scale system) times the base unit.

History: Adopted by the CGPM (Conférence Générale des Poids et Mesures) in 1991, extending the SI prefix table to cover the enormous data and astrophysical quantities that had begun to exceed the existing exa- prefix.

Current use: Used to express extremely large quantities such as global data-storage totals (yottabytes) and some astrophysical mass and energy figures.

Supported Units

Prefix Symbol Multiplier (× base)
Yotta Y 1E+24
Zetta Z 1E+21
Exa E 1E+18
Peta P 1E+15
Tera T 1E+12
Giga G 1E+09
Mega M 1000000
Kilo k 1000
Hecto h 100
Deka da 10
None (base unit) — 1
Deci d 0.1
Centi c 0.01
Milli m 0.001
Micro µ 1E-06
Nano n 1E-09
Pico p 1E-12
Femto f 1E-15
Atto a 1E-18
Zepto z 1E-21
Yocto y 1E-24

About These Parameters

Value
The number of "From" prefix units you want to re-express in the "To" prefix. Since prefixes are just multiplier scales, this value can represent anything from a physical quantity's leading digits to a plain abstract number.
From Unit
The SI prefix your value is currently scaled by — for example, the "kilo" in "kilogram" or the "nano" in "nanosecond," entered here without the base unit attached.
To Unit
The SI prefix you want the value re-expressed in. Use the swap button to flip From and To instantly, handy when converting a datasheet figure from one prefix scale to another.

How Prefix Conversion Works

The Formula

Every SI prefix is defined by a fixed power-of-ten multiplier relative to the unprefixed base value. To convert a value from one prefix scale to another:

result = value × (multiplier of "From" prefix ÷ multiplier of "To" prefix)

For None (base unit) → Yotta: multiply by 1E-24. For example, 1 — × 1E-24 = 1E-24 Y.

A History of Powers of Ten

The original six metric prefixes — kilo, hecto, deka, deci, centi, milli — were adopted by the French Academy of Sciences in 1795 alongside the metric system itself. As science and industry needed to describe ever-larger and ever-smaller quantities, the CGPM (Conférence Générale des Poids et Mesures) extended the table repeatedly: mega and micro in 1960 when the modern SI was formalized, giga and nano the same year, tera and pico following soon after, then peta/femto (1975), exa/atto (1975), and finally zetta/zepto and yotta/yocto in 1991 — the classical range covered on this page. In 2022 the CGPM went further still, adding ronna/ronto and quetta/quecto to keep pace with data-storage and astrophysical quantities that had begun to outgrow even yotta.

Why a Prefix-Only Converter Is Useful

Every other unit converter on this site attaches these same prefixes to one specific base unit — grams, watts, bytes, farads — because that's how the prefix is actually used in practice. But the underlying math of "how much bigger is giga than mega" never changes no matter which unit it's modifying, so it's often faster to reason about the prefix scale on its own: quickly checking that a "giga" figure is a billion and not a million, or converting a "nano" measurement from one datasheet into the "micro" scale used by a different one, without needing to know or care what physical quantity either figure describes.

Example

1 — equals 1E-24 Y. Whatever base unit these prefixes are actually attached to — grams, bytes, watts, seconds — the same multiplier ratio applies: 1 kilo- is always 1,000 times 1 (unprefixed), and 1 mega- is always 1,000 times 1 kilo-, regardless of the quantity being measured.

Frequently Asked Questions

How many Yotta are in 1 None (base unit)?

1 None (base unit) (—) equals exactly 1E-24 Yotta (Y).

Is giga a billion or a million?

Giga is always a billion (10⁹) times the base unit — a common point of confusion is with "mega," which is a million (10⁶). The two are frequently mixed up in casual conversation about data storage and computing speed, which is exactly the kind of mistake this converter is designed to catch.

Does this converter work for any unit, like grams or bytes?

Yes — this converter deliberately ignores the underlying unit and works purely with the multiplier scale. "1 kilo- to mega-" gives the same ratio (0.001) whether you mentally attach it to grams, watts, bytes, or any other quantity, because the prefix's multiplier is independent of what it's modifying.

What does "None (base unit)" mean in the unit list?

"None (base unit)" represents a value with no prefix attached at all — a plain gram, meter, or watt rather than a kilogram, kilometer, or milliwatt. It's included so you can convert directly between an unprefixed value and any prefixed scale, such as figuring out how many kilo- units equal one plain (unprefixed) unit.

Are ronna, ronto, quetta, and quecto included here?

Not yet — this page covers the classical SI prefix range from yotta (10²⁴) down to yocto (10⁻²⁴), which was complete from 1991 until 2022. The newer 2022 additions (ronna/ronna-, quetta/quecto) sit beyond even yotta and yocto and aren't included in this table.

Convert None (base unit) to Other Prefixes

None (base unit) to Yotta None (base unit) to Zetta None (base unit) to Exa None (base unit) to Peta None (base unit) to Tera None (base unit) to Giga None (base unit) to Mega None (base unit) to Kilo None (base unit) to Hecto None (base unit) to Deka None (base unit) to Deci None (base unit) to Centi None (base unit) to Milli None (base unit) to Micro None (base unit) to Nano None (base unit) to Pico None (base unit) to Femto None (base unit) to Atto None (base unit) to Zepto None (base unit) to Yocto

Possible Prefix Conversions

Hecto to Zepto Hecto to Yocto Tera to Deka Mega to Giga Deka to None (base unit) Nano to Zetta Yotta to Atto Zepto to Deci Yotta to Giga Zetta to Giga Centi to Yocto Tera to Deci Yotta to Pico Deci to Hecto Mega to Atto Mega to Centi Exa to Yocto Tera to Milli None (base unit) to Peta Micro to Mega Milli to Femto Pico to Kilo Micro to Zepto Atto to Femto Femto to Micro Giga to Femto None (base unit) to Exa Femto to Yotta Deka to Deci Peta to Tera Yotta to Kilo Centi to Exa Yotta to None (base unit) Femto to Milli Kilo to Nano Mega to Deka Femto to Tera Yocto to Peta Giga to Mega Centi to Micro Giga to Deci Tera to Pico Giga to Nano Micro to Yotta Kilo to Hecto Nano to Peta Mega to Pico Mega to Zetta None (base unit) to Kilo Tera to Zepto Yocto to Femto Exa to Yotta Femto to Deci Centi to Giga Exa to Zepto Nano to Yotta Atto to Peta Micro to Exa Giga to Peta Pico to None (base unit) Pico to Milli Pico to Giga Kilo to Centi Deka to Peta Deci to Femto Deka to Kilo Giga to Hecto Tera to Mega Hecto to Deci Milli to Atto Femto to Giga Yocto to Yotta Pico to Yotta Exa to Giga Exa to Centi Yotta to Zepto Kilo to Femto Kilo to Exa Exa to Deka Zepto to Micro Pico to Centi Femto to Centi Micro to Nano Giga to Micro Deci to Pico None (base unit) to Zepto Deci to Yotta Giga to Exa Hecto to Peta Mega to Milli Zetta to Hecto None (base unit) to Femto Zetta to Deci Peta to Hecto Deka to Milli Peta to Atto Giga to Tera Deka to Nano Micro to Kilo Femto to Zepto Nano to Kilo Mega to Hecto Yocto to Deci Atto to Yocto Zepto to Nano Zepto to Hecto Atto to None (base unit) Zetta to Kilo Milli to Deci Zepto to None (base unit) Zepto to Exa Tera to Hecto None (base unit) to Deci Pico to Zepto None (base unit) to Zetta Atto to Mega Deci to Zetta Yotta to Tera Deka to Atto Deci to None (base unit) Kilo to Yocto Femto to Deka Yotta to Micro Hecto to Micro Micro to Giga Micro to Deka Zetta to Tera Zetta to None (base unit) Centi to Deci Peta to Deci Micro to Yocto Zepto to Yocto Tera to Nano Hecto to Zetta Milli to Yotta Giga to Pico Femto to Kilo Yocto to Kilo Hecto to Kilo Mega to Tera Nano to Zepto Zetta to Femto Kilo to Atto Atto to Yotta Centi to Deka Micro to Tera Yotta to Deka Deka to Exa Milli to Tera Centi to Nano Deka to Pico None (base unit) to Giga Nano to Centi Zepto to Yotta Deci to Peta Deka to Zepto Giga to Yotta None (base unit) to Nano Exa to Nano Exa to Atto Tera to Micro Atto to Centi Nano to Milli Kilo to Peta Hecto to Centi Kilo to Pico Atto to Pico Zetta to Yocto Peta to Zetta Nano to Hecto None (base unit) to Centi Micro to Pico Exa to Pico Femto to Hecto Yocto to Hecto Tera to Giga Deka to Tera Atto to Kilo None (base unit) to Yotta Deka to Yotta Atto to Giga Centi to Tera Tera to Exa Nano to Exa Yotta to Peta Exa to Milli Hecto to Tera Kilo to Micro Hecto to Deka Yotta to Femto Giga to Zetta Tera to Yotta Tera to Yocto None (base unit) to Milli Deka to Yocto Zetta to Zepto Exa to Tera Hecto to Milli Mega to Micro Milli to Micro Nano to Femto Zetta to Yotta Milli to Deka None (base unit) to Hecto Exa to None (base unit) Centi to Atto Deka to Femto Deci to Atto Milli to Hecto Micro to Milli Yocto to Zepto Peta to Giga Femto to Mega Pico to Deka Deka to Hecto Atto to Deka Nano to Pico Yocto to Tera Yotta to Zetta Deci to Tera Peta to None (base unit) Femto to Exa Centi to Kilo Milli to Yocto Giga to Yocto Nano to Deka Zetta to Mega Nano to Giga Atto to Micro Femto to Yocto Centi to Peta Micro to Deci Pico to Yocto Peta to Exa Yotta to Exa Hecto to Mega Mega to Peta None (base unit) to Tera Yotta to Deci Peta to Nano Exa to Mega Milli to Mega Nano to Yocto None (base unit) to Micro Kilo to Tera Milli to Zepto Yocto to Atto Giga to Deka Zepto to Milli Atto to Tera Exa to Micro None (base unit) to Mega Atto to Zetta Micro to Zetta Deci to Deka Micro to Peta Mega to Femto None (base unit) to Deka Kilo to Deka Peta to Zepto Hecto to Pico Mega to None (base unit) Zetta to Peta Giga to None (base unit) Yocto to Nano Deka to Giga Tera to Zetta Zetta to Nano Mega to Yocto Tera to Kilo Milli to None (base unit) Pico to Zetta Femto to None (base unit) Kilo to Deci Exa to Peta Peta to Femto Pico to Femto Tera to Peta Peta to Yotta Hecto to Giga Milli to Peta Nano to Mega Centi to Pico Femto to Atto Centi to Zetta Pico to Micro Zetta to Deka Zepto to Kilo Pico to Hecto Zepto to Mega Hecto to Nano Nano to Deci Milli to Nano Hecto to Femto Zepto to Pico None (base unit) to Atto Zetta to Milli Exa to Zetta None (base unit) to Pico Centi to None (base unit) Milli to Exa Zetta to Exa Milli to Kilo Yocto to Micro Peta to Yocto Micro to Hecto Mega to Deci Yocto to Pico Kilo to Milli Zepto to Femto Yocto to Zetta Micro to None (base unit) Deka to Micro Mega to Kilo Centi to Zepto Mega to Nano Deci to Micro Deci to Milli Centi to Mega Yotta to Centi Centi to Milli Kilo to Zetta Deci to Centi Atto to Nano Exa to Kilo Centi to Hecto Hecto to Exa Deci to Yocto Pico to Mega Zepto to Zetta Pico to Tera Milli to Giga Mega to Exa Giga to Centi Yocto to None (base unit) Hecto to None (base unit) Yocto to Milli Yotta to Yocto Zepto to Peta Pico to Peta Zepto to Giga Pico to Nano Peta to Deka Kilo to Zepto Giga to Zepto Micro to Atto Hecto to Atto Femto to Nano Exa to Femto Peta to Micro Zetta to Atto Pico to Deci Peta to Pico Deci to Giga Deci to Zepto Zepto to Atto Mega to Zepto Deka to Mega Peta to Centi Yotta to Nano Zepto to Centi Centi to Yotta Deci to Nano Milli to Pico Kilo to Yotta Nano to None (base unit) Exa to Hecto Yotta to Mega Yocto to Deka Tera to Femto Exa to Deci Yocto to Giga Tera to Centi Milli to Centi Femto to Zetta Zetta to Micro Peta to Kilo Pico to Exa Kilo to Giga Deka to Centi Nano to Atto Micro to Centi Atto to Zepto Nano to Tera Atto to Deci Peta to Milli Yocto to Mega Deci to Kilo Deci to Exa Nano to Micro Zetta to Pico Giga to Milli Atto to Milli Atto to Hecto Yotta to Milli Zepto to Tera Zepto to Deka Milli to Zetta Deci to Mega Mega to Yotta Giga to Atto Yocto to Exa Peta to Mega Micro to Femto Atto to Exa Zetta to Centi Kilo to Mega Deka to Zetta Tera to None (base unit) Yocto to Centi Pico to Atto None (base unit) to Yocto Giga to Kilo Femto to Peta Centi to Femto Yotta to Hecto Femto to Pico Kilo to None (base unit) Hecto to Yotta Tera to Atto

See also