Convert Centi to Deci

Centi (c) to Deci (d) 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.

Value

From

Result

1 c = 0.1 d

1 Centi = 0.1 Deci

1 Deci = 10 Centi

1 c in every supported prefix

Conversion chart: Centi to Deci

Conversion table

Centi (c)	Deci (d)
0.01 c	0.001 d
0.1 c	0.01 d
1 c	0.1 d
2 c	0.2 d
3 c	0.3 d
5 c	0.5 d
10 c	1 d
20 c	2 d
50 c	5 d
100 c	10 d
1000 c	100 d

Centi (c)

Definition: An SI prefix denoting a factor of 10⁻² — one hundredth of the base unit.

History: One of the original six metric prefixes adopted in France in 1795, from the Latin 'centum' (hundred).

Current use: Extremely common in everyday measurement — centimeters for length and centiliters for small liquid volumes are used worldwide.

Deci (d)

Definition: An SI prefix denoting a factor of 10⁻¹ — one tenth of the base unit.

History: One of the original six metric prefixes adopted in France in 1795, from the Latin 'decimus' (tenth).

Current use: Most familiar in the deciliter (common in European recipes and beverage serving sizes) and the decibel, a logarithmic (not linear-prefix) unit that borrows the name.

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 Centi → Deci: multiply by 0.1. For example, 1 c × 0.1 = 0.1 d.

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 c equals 0.1 d. 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 Deci are in 1 Centi?

1 Centi (c) equals exactly 0.1 Deci (d).

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 Centi to Other Prefixes

Possible Prefix Conversions

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