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Kilograms to Grams (kg to g)
Convert kilograms to grams: 1 kg = 1000 g. Exact conversion factor, formula, 22-row table and worked examples, with JSON API and MCP access.
Formula
1 kg = 1000 g
grams = kilograms × 1000 — reverse: kilograms = grams × 0.001
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 kg = 5000 g
- 12.5 kg = 12500 g
- 100 kg = 100000 g
Kilograms to grams conversion table
| Kilograms (kg) | Grams (g) |
|---|---|
| 1 | 1000 |
| 2 | 2000 |
| 3 | 3000 |
| 4 | 4000 |
| 5 | 5000 |
| 6 | 6000 |
| 7 | 7000 |
| 8 | 8000 |
| 9 | 9000 |
| 10 | 10000 |
| 15 | 15000 |
| 20 | 20000 |
| 25 | 25000 |
| 30 | 30000 |
| 40 | 40000 |
| 50 | 50000 |
| 75 | 75000 |
| 100 | 100000 |
| 200 | 200000 |
| 250 | 250000 |
| 500 | 500000 |
| 1000 | 1000000 |
FAQ
How many grams are in one kilogram?
1 kg = 1000 g. 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 kilograms to grams?
Multiply the value in kilograms by 1000: grams = kilograms × 1000. For example, 5 kg = 5000 g.
How do I convert grams back to kilograms?
Multiply by the inverse factor 0.001 (kilograms = grams × 0.001), or use the grams-to-kilograms page.
Related conversions
Machine access
- API:
GET https://tttkmbb.com/api/v1/convert?value=5&from_unit=kg&to_unit=g - MCP: server
https://tttkmbb.com/mcp, toolconvert_unitswith{"value":5,"from_unit":"kg","to_unit":"g"} - Markdown: https://tttkmbb.com/conversion/kg-to-grams.md · JSON: https://tttkmbb.com/conversion/kg-to-grams.json (add
?value=for a result) · Units: /api/v1/units?quantity=mass - OpenAPI operationId:
convert_units. Freshness:static. Authentication: none.