Grain to Centigram Converter
Convert Grain (gr) to Centigram (cg) instantly. 1 gr = 6.479891 cg.
Mass Converter
26 units available
1 gr = 6.479891 cg
Formula:
cg = gr × 6.479891With your value: 1 gr = 6.479891 cg
How big is that?
Everyday references on a logarithmic scale, all expressed in grain so you can sanity-check the result.
Other Grain to Centigram conversions
Grain to Centigram Conversion Table
| Grain (gr) | Centigram (cg) |
|---|---|
| 0.5 | 3.239945 |
| 1 | 6.479891 |
| 2 | 12.959782 |
| 5 | 32.399455 |
| 10 | 64.79891 |
| 15 | 97.198365 |
| 20 | 129.59782 |
| 25 | 161.997275 |
| 50 | 323.99455 |
| 100 | 647.9891 |
| 250 | 1,619.97275 |
| 500 | 3,239.9455 |
| 1000 | 6,479.891 |
Centigram to Grain Conversion Table
| Centigram (cg) | Grain (gr) |
|---|---|
| 0.5 | 0.077162 |
| 1 | 0.154324 |
| 2 | 0.308647 |
| 5 | 0.771618 |
| 10 | 1.543236 |
| 15 | 2.314854 |
| 20 | 3.086472 |
| 25 | 3.85809 |
| 50 | 7.716179 |
| 100 | 15.432358 |
| 250 | 38.580896 |
| 500 | 77.161792 |
| 1000 | 154.323584 |
Where these values come from
Every factor on this page is traced to the document that defines it. See the full provenance dataset or our methodology.
Grain (gr)
Mass
Traceable to the kilogram, defined by fixing the Planck constant at 6.626 070 15 × 10⁻³⁴ J·s. Avoirdupois masses derive from the 1959 international pound (0.453 592 37 kg exactly).
Source: BIPM, The International System of Units (SI), 9th edition, 2019 (updated 2024)
Bureau International des Poids et Mesures · Reviewed 2026-07-01
Centigram (cg)
Mass
Traceable to the kilogram, defined by fixing the Planck constant at 6.626 070 15 × 10⁻³⁴ J·s. Avoirdupois masses derive from the 1959 international pound (0.453 592 37 kg exactly).
Source: BIPM, The International System of Units (SI), 9th edition, 2019 (updated 2024)
Bureau International des Poids et Mesures · Reviewed 2026-07-01
How to Convert Grain to Centigram
To convert from Grain (gr) to Centigram (cg), multiply the value by 6.479891.
Formula: cg = gr × 6.479891
Reverse: gr = cg × 0.1543235835
Step-by-Step Example
- Start with your value in Grain. For example: 5 gr
- Multiply by the conversion factor: 5 x 6.479891
- The result is: 32.399455 cg
About Grain
The grain equals exactly 64.79891 milligrams and was originally the weight of a single barleycorn. It is still the standard unit for bullets, propellant and arrows.
Common uses: ammunition, archery, pharmacy (historic).
About Centigram
The centigram (cg) is a unit of mass and weight. One centigram equals 1.000000 × 10^-5 kilograms. UnitConvertLab converts it against every other mass unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.
Common uses: mass calculations, engineering and science, education.
Frequently Asked Questions
How many Centigram are in 1 Grain?
There are exactly 6.479891 Centigram in 1 Grain. This means the conversion factor from Grain to Centigram is 6.479891.
What is the formula to convert Grain to Centigram?
The formula to convert Grain to Centigram is: cg = gr × 6.479891. For example, to convert 10 Grain to Centigram, you would multiply 10 by 6.479891.
What is a Grain?
The grain equals exactly 64.79891 milligrams and was originally the weight of a single barleycorn. It is still the standard unit for bullets, propellant and arrows.
What is a Centigram?
The centigram (cg) is a unit of mass and weight. One centigram equals 1.000000 × 10^-5 kilograms. UnitConvertLab converts it against every other mass unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.
What are the common uses of Grain?
The Grain is commonly used in ammunition, archery, pharmacy (historic).
Related Mass Conversions
Cite this page
UnitConvertLab. (2026). Grain to Centigram converter. UnitConvertLab. Retrieved from https://unitconvertlab.com/convert/grain-to-centigram