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Grams to Grains (g to grain)
Convert grams to grains: 1 g = 15.4324 grain. Exact conversion factor, formula, 22-row table and worked examples, with JSON API and MCP access.
Formula
1 g = 15.4324 grain
grains = grams × 15.43235835 — reverse: grams = grains × 0.06479891
The factor is derived from the SI definitions of both units (base unit: kg) as listed in NIST SP 811; results on this page are shown to 6 significant figures, the API returns up to 12.
Worked examples
- 5 g = 77.1618 grain
- 12.5 g = 192.904 grain
- 100 g = 1543.24 grain
Grams to grains conversion table
| Grams (g) | Grains (grain) |
|---|---|
| 1 | 15.4324 |
| 2 | 30.8647 |
| 3 | 46.2971 |
| 4 | 61.7294 |
| 5 | 77.1618 |
| 6 | 92.5942 |
| 7 | 108.027 |
| 8 | 123.459 |
| 9 | 138.891 |
| 10 | 154.324 |
| 15 | 231.485 |
| 20 | 308.647 |
| 25 | 385.809 |
| 30 | 462.971 |
| 40 | 617.294 |
| 50 | 771.618 |
| 75 | 1157.43 |
| 100 | 1543.24 |
| 200 | 3086.47 |
| 250 | 3858.09 |
| 500 | 7716.18 |
| 1000 | 15432.4 |
FAQ
How many grains are in one gram?
1 g = 15.4324 grain. The factor comes from the SI definitions of both units (NIST SP 811 / BIPM), so it is exact or correct to at least 10 significant figures.
What is the formula to convert grams to grains?
Multiply the value in grams by 15.43235835: grains = grams × 15.43235835. For example, 5 g = 77.1618 grain.
How do I convert grains back to grams?
Multiply by the inverse factor 0.06479891 (grams = grains × 0.06479891), or use the grains-to-grams page.
Related conversions
Machine access
- API:
GET https://tttkmbb.com/api/v1/convert?value=5&from_unit=g&to_unit=grain - MCP: server
https://tttkmbb.com/mcp, toolconvert_unitswith{"value":5,"from_unit":"g","to_unit":"grain"} - Markdown: https://tttkmbb.com/conversion/grams-to-grains.md · JSON: https://tttkmbb.com/conversion/grams-to-grains.json (add
?value=for a result) · Units: /api/v1/units?quantity=mass - OpenAPI operationId:
convert_units. Freshness:static. Authentication: none.