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Convert Centigrams to Kilograms

1 centigram is 0.00001 kg. One centigram is exactly 0.00001 kilograms.

One centigram is 1.0000 × 10^-5 kilograms. To convert centigrams to kilograms, multiply by 1.0000 × 10^-5; to go the other way, divide by 1.0000 × 10^-5 or multiply by 100000. The relation is exact but the figure is not: it is a rounding of a number that does not terminate, and it follows from NIST Handbook 44. A hundredth of a gram, or ten milligrams.

Factor checked against the defining standard · How we check

Kilograms
0.00001 kg
Centigrams × 1.0000 × 10^-5
1 * 0.000010 kg

1 centigram in every weight unit

1 centigram expressed in every weight unit
UnitValueExact factor
ounces0.0003527396195 oz× 0.000352739619496
pounds0.00002204622622 lb× 0.0000220462262185
stone0.000001574730444 st× 0.00000157473044418
US tons0.00000001102311311 ton× 0.0000000110231131092
micrograms10,000 mcg× 10,000
milligrams10 mg× 10
centigrams (as entered)1 cg—
grams0.01 g× 0.01
kilograms0.00001 kg× 0.00001
slugs0.0000006852176586 slug× 0.000000685217658568
tonnes0.00000001 t× 0.00000001
carats0.05 ct× 0.05
troy ounces0.0003215074657 ozt× 0.000321507465686
grains0.1543235835 gr× 0.154323583529
long tons0.000000009842065276 LT× 0.00000000984206527611

Factors are entered by hand from NIST Handbook 44 rather than derived from a units library, so the ones that terminate are exact rather than rounded.

How do you convert centigrams to kilograms? The converter and the working

  1. 1.Take the measurement in centigrams.
  2. 2.Multiply by 1.0000 × 10^-5 — that is how many kilograms fit in one centigram.
  3. 3.To go back the other way, divide by 1.0000 × 10^-5, or multiply by 100000.

Worked example: 25 centigrams to kilograms

Formula
cg × 1.0000 × 10^-5 = kg
Arithmetic
25 × 1.0000 × 10^-5 = 0.00025 kg
Answer
25 cg = 0.00025 kg

The factor is rounded for display; the figure above is computed from the full value.

Centigrams to kilograms conversion table

Centigrams to kilograms conversion table
CentigramsKilograms
1 cg0.00001 kg
2 cg0.00002 kg
3 cg0.00003 kg
4 cg0.00004 kg
5 cg0.00005 kg
6 cg0.00006 kg
7 cg0.00007 kg
8 cg0.00008 kg
9 cg0.00009 kg
10 cg0.0001 kg
12 cg0.00012 kg
15 cg0.00015 kg
20 cg0.0002 kg
25 cg0.00025 kg
50 cg0.0005 kg
100 cg0.001 kg
200 cg0.002 kg
300 cg0.003 kg
500 cg0.01 kg
1000 cg0.01 kg
2000 cg0.02 kg
5000 cg0.05 kg
10000 cg0.1 kg

What is a centigram?

A hundredth of a gram, or ten milligrams. It survives mainly in pharmacology and in school exercises about metric prefixes.

What is a kilogram?

The SI base unit of mass, defined since 2019 by fixing the Planck constant rather than by a metal cylinder in Paris.

How many kilograms are in a centigram?

One centigram is 1.0000 × 10^-5 kilograms. Going the other way, one kilogram is 100000 centigrams. Both figures come from the same defined relation rather than from a measurement, which is why they are the same today as they were in 1959.

Every weight unit here

The whole group — 15 units with their symbols and the size of each one in kilograms — is on the conversion index, along with every pair it makes. The table above already gives each of them relative to a centigram.

Source: NIST Handbook 44 — mass and weight

Cite this page

APA
Rule Calculator. (2026). Convert Centigrams to kilograms. Rule Calculator. https://rulecalculators.com/convert/centigram-to-kilogram
MLA
"Convert Centigrams to kilograms." Rule Calculator, August 16, 2026, https://rulecalculators.com/convert/centigram-to-kilogram.
Chicago
Rule Calculator. "Convert Centigrams to kilograms." Rule Calculator. Last reviewed August 16, 2026. https://rulecalculators.com/convert/centigram-to-kilogram.

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Questions people actually ask

How many kilograms are in a centigram?
1.0000 × 10^-5. The SI base unit of mass, defined since 2019 by fixing the Planck constant rather than by a metal cylinder in Paris.
How do I convert kilograms back to centigrams?
Divide by 1.0000 × 10^-5, or multiply by 100000 — they are the same operation.

Other weight conversions

Kilograms to centigrams — the same conversion the other way.

Calculators that work in weight