Convert Centigrams to Grains
1 centigram is 0.15 gr. One centigram is exactly 0.154323583529 grains.
One centigram is 0.15432358 grains. To convert centigrams to grains, multiply by 0.15432358; to go the other way, divide by 0.15432358 or multiply by 6.479891. 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
- Centigrams × 0.15432358
1 * 0.15432360.154 gr
1 centigram in every weight unit
| Unit | Value | Exact factor |
|---|---|---|
| ounces | 0.0003527396195 oz | × 0.000352739619496 |
| pounds | 0.00002204622622 lb | × 0.0000220462262185 |
| stone | 0.000001574730444 st | × 0.00000157473044418 |
| US tons | 0.00000001102311311 ton | × 0.0000000110231131092 |
| micrograms | 10,000 mcg | × 10,000 |
| milligrams | 10 mg | × 10 |
| centigrams (as entered) | 1 cg | — |
| grams | 0.01 g | × 0.01 |
| kilograms | 0.00001 kg | × 0.00001 |
| slugs | 0.0000006852176586 slug | × 0.000000685217658568 |
| tonnes | 0.00000001 t | × 0.00000001 |
| carats | 0.05 ct | × 0.05 |
| troy ounces | 0.0003215074657 ozt | × 0.000321507465686 |
| grains | 0.1543235835 gr | × 0.154323583529 |
| long tons | 0.000000009842065276 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 grains? The converter and the working
- 1.Take the measurement in centigrams.
- 2.Multiply by 0.15432358 — that is how many grains fit in one centigram.
- 3.To go back the other way, divide by 0.15432358, or multiply by 6.479891.
Worked example: 25 centigrams to grains
- Formula
- cg × 0.15432358 = gr
- Arithmetic
- 25 × 0.15432358 = 3.86 gr
- Answer
- 25 cg = 3.86 gr
The factor is rounded for display; the figure above is computed from the full value.
Centigrams to grains conversion table
| Centigrams | Grains |
|---|---|
| 1 cg | 0.15 gr |
| 2 cg | 0.31 gr |
| 3 cg | 0.46 gr |
| 4 cg | 0.62 gr |
| 5 cg | 0.77 gr |
| 6 cg | 0.93 gr |
| 7 cg | 1.08 gr |
| 8 cg | 1.23 gr |
| 9 cg | 1.39 gr |
| 10 cg | 1.54 gr |
| 12 cg | 1.85 gr |
| 15 cg | 2.31 gr |
| 20 cg | 3.09 gr |
| 25 cg | 3.86 gr |
| 50 cg | 7.72 gr |
| 100 cg | 15.43 gr |
| 200 cg | 30.86 gr |
| 300 cg | 46.3 gr |
| 500 cg | 77.16 gr |
| 1000 cg | 154.32 gr |
| 2000 cg | 308.65 gr |
| 5000 cg | 771.62 gr |
| 10000 cg | 1,543.24 gr |
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 grain?
Exactly 64.79891 milligrams, the unit both the avoirdupois and troy systems are built from. Bullet weights and powder charges are still measured in it, and so are some pharmaceutical doses.
How many grains are in a centigram?
One centigram is 0.15432358 grains. Going the other way, one grain is 6.479891 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.
Cite this page
- APA
- Rule Calculator. (2026). Convert Centigrams to grains. Rule Calculator. https://rulecalculators.com/convert/centigram-to-grain
- MLA
- "Convert Centigrams to grains." Rule Calculator, August 16, 2026, https://rulecalculators.com/convert/centigram-to-grain.
- Chicago
- Rule Calculator. "Convert Centigrams to grains." Rule Calculator. Last reviewed August 16, 2026. https://rulecalculators.com/convert/centigram-to-grain.
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Questions people actually ask
- How many grains are in a centigram?
- 0.15432358. Exactly 64.79891 milligrams, the unit both the avoirdupois and troy systems are built from. Bullet weights and powder charges are still measured in it, and so are some pharmaceutical doses.
- How do I convert grains back to centigrams?
- Divide by 0.15432358, or multiply by 6.479891 — they are the same operation.
Other weight conversions
Grains to centigrams — the same conversion the other way.