Skip to the calculator
Rule Calculator

Convert Ounces to Centigrams

1 ounce is 2,834.95 cg. One ounce is exactly 2834.9523125 centigrams.

One ounce is 2834.9523 centigrams. To convert ounces to centigrams, multiply by 2834.9523; to go the other way, divide by 2834.9523 or multiply by 3.5274 × 10^-4. 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. One sixteenth of a pound.

Factor checked against the defining standard · How we check

Centigrams
2,834.95 cg
Ounces × 2834.9523
1 * 2834.95232,834.952 cg

1 ounce in every weight unit

1 ounce expressed in every weight unit
UnitValueExact factor
ounces (as entered)1 oz—
pounds0.0625 lb× 0.0625
stone0.004464285714 st× 0.00446428571429
US tons0.00003125 ton× 0.00003125
micrograms28,349,523.13 mcg× 28,349,523.125
milligrams28,349.52313 mg× 28,349.523125
centigrams2,834.952313 cg× 2,834.9523125
grams28.34952313 g× 28.349523125
kilograms0.02834952313 kg× 0.028349523125
slugs0.001942559386 slug× 0.00194255938572
tonnes0.00002834952313 t× 0.000028349523125
carats141.7476156 ct× 141.747615625
troy ounces0.9114583333 ozt× 0.911458333333
grains437.5 gr× 437.5
long tons0.00002790178571 LT× 0.0000279017857143

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 ounces to centigrams? The converter and the working

  1. 1.Take the measurement in ounces.
  2. 2.Multiply by 2834.9523 — that is how many centigrams fit in one ounce.
  3. 3.To go back the other way, divide by 2834.9523, or multiply by 3.5274 × 10^-4.

Worked example: 25 ounces to centigrams

Formula
oz × 2834.9523 = cg
Arithmetic
25 × 2834.9523 = 70,873.81 cg
Answer
25 oz = 70,873.81 cg

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

Ounces to centigrams conversion table

Ounces to centigrams conversion table
OuncesCentigrams
1 oz2,834.95 cg
2 oz5,669.9 cg
3 oz8,504.86 cg
4 oz11,339.81 cg
5 oz14,174.76 cg
6 oz17,009.71 cg
7 oz19,844.67 cg
8 oz22,679.62 cg
9 oz25,514.57 cg
10 oz28,349.52 cg
12 oz34,019.43 cg
15 oz42,524.28 cg
20 oz56,699.05 cg
25 oz70,873.81 cg
50 oz141,747.62 cg
100 oz283,495.23 cg
200 oz566,990.46 cg
300 oz850,485.69 cg
500 oz1,417,476.16 cg
1000 oz2,834,952.31 cg
2000 oz5,669,904.63 cg
5000 oz14,174,761.56 cg
10000 oz28,349,523.13 cg

What is an ounce?

One sixteenth of a pound. Not to be confused with the fluid ounce, which measures volume.

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 an ounce?

One ounce is 2834.9523 centigrams. Going the other way, one centigram is 3.5274 × 10^-4 ounces. 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 an ounce.

Source: NIST Handbook 44 — mass and weight

Cite this page

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

The date is when the figures on this page were last checked against their source, not the day you opened it. Add your own access date if your style needs one.

Questions people actually ask

How many centigrams are in an ounce?
2834.9523. 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 ounces?
Divide by 2834.9523, or multiply by 3.5274 × 10^-4 — they are the same operation.

Other weight conversions

Centigrams to ounces — the same conversion the other way.

Calculators that work in weight