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Convert Kilograms to Centigrams

1 kilogram is 100,000 cg. One kilogram is exactly 100000 centigrams.

One kilogram is 100000 centigrams. To convert kilograms to centigrams, multiply by 100000; to go the other way, divide by 100000 or multiply by 1.0000 × 10^-5. The factor is exact rather than rounded: it follows from NIST Handbook 44. The SI base unit of mass, defined since 2019 by fixing the Planck constant rather than by a metal cylinder in Paris.

Factor checked against the defining standard · How we check

Centigrams
100,000 cg
Kilograms × 100000
1 * 100000100,000 cg

1 kilogram in every weight unit

1 kilogram expressed in every weight unit
UnitValueExact factor
ounces35.27396195 oz× 35.2739619496
pounds2.204622622 lb× 2.20462262185
stone0.1574730444 st× 0.157473044418
US tons0.001102311311 ton× 0.00110231131092
micrograms1,000,000,000 mcg× 1,000,000,000
milligrams1,000,000 mg× 1,000,000
centigrams100,000 cg× 100,000
grams1,000 g× 1,000
kilograms (as entered)1 kg—
slugs0.06852176586 slug× 0.0685217658568
tonnes0.001 t× 0.001
carats5,000 ct× 5,000
troy ounces32.15074657 ozt× 32.1507465686
grains15,432.35835 gr× 15,432.3583529
long tons0.0009842065276 LT× 0.000984206527611

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 kilograms to centigrams? The converter and the working

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

Worked example: 25 kilograms to centigrams

Formula
kg × 100000 = cg
Arithmetic
25 × 100000 = 2,500,000 cg
Answer
25 kg = 2,500,000 cg

The factor is exact, so this figure is exact too — only the display is rounded.

Kilograms to centigrams conversion table

Kilograms to centigrams conversion table
KilogramsCentigrams
1 kg100,000 cg
2 kg200,000 cg
3 kg300,000 cg
4 kg400,000 cg
5 kg500,000 cg
6 kg600,000 cg
7 kg700,000 cg
8 kg800,000 cg
9 kg900,000 cg
10 kg1,000,000 cg
12 kg1,200,000 cg
15 kg1,500,000 cg
20 kg2,000,000 cg
25 kg2,500,000 cg
50 kg5,000,000 cg
100 kg10,000,000 cg
200 kg20,000,000 cg
300 kg30,000,000 cg
500 kg50,000,000 cg
1000 kg100,000,000 cg
2000 kg200,000,000 cg
5000 kg500,000,000 cg
10000 kg1,000,000,000 cg

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.

What is a centigram?

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

How many centigrams are in a kilogram?

One kilogram is 100000 centigrams, exactly. Going the other way, one centigram is 1.0000 × 10^-5 kilograms. 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 kilogram.

Source: NIST Handbook 44 — mass and weight

Cite this page

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

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Questions people actually ask

How many centigrams are in a kilogram?
100000. A hundredth of a gram, or ten milligrams. It survives mainly in pharmacology and in school exercises about metric prefixes.
How do I convert centigrams back to kilograms?
Divide by 100000, or multiply by 1.0000 × 10^-5 — they are the same operation.

Other weight conversions

Centigrams to kilograms — the same conversion the other way.

Calculators that work in weight