Home › Unit Conversion › Kilocalories (food calories) to Calories (small, thermochemical)
Kilocalories (food calories) to Calories (small, thermochemical) (kcal to cal)
Convert kilocalories (food calories) to calories (small, thermochemical): 1 kcal = 1000 cal. Exact conversion factor, formula, 22-row table and worked examples, with JSON API and MCP access.
Formula
1 kcal = 1000 cal
calories (small, thermochemical) = kilocalories (food calories) × 1000 — reverse: kilocalories (food calories) = calories (small, thermochemical) × 0.001
The factor is derived from the SI definitions of both units (base unit: J) 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 kcal = 5000 cal
- 12.5 kcal = 12500 cal
- 100 kcal = 100000 cal
Kilocalories (food calories) to calories (small, thermochemical) conversion table
| Kilocalories (food calories) (kcal) | Calories (small, thermochemical) (cal) |
|---|---|
| 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 calories (small, thermochemical) are in one kilocalorie?
1 kcal = 1000 cal. 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 kilocalories (food calories) to calories (small, thermochemical)?
Multiply the value in kilocalories (food calories) by 1000: calories (small, thermochemical) = kilocalories (food calories) × 1000. For example, 5 kcal = 5000 cal.
How do I convert calories (small, thermochemical) back to kilocalories (food calories)?
Multiply by the inverse factor 0.001 (kilocalories (food calories) = calories (small, thermochemical) × 0.001), or use the calories (small, thermochemical)-to-kilocalories (food calories) page.
Related conversions
- Calories (small, thermochemical) to kilocalories (food calories) (reverse)
- Energy Converter — all energy units in one tool
- Kilocalories (food calories) to Kilojoules
- Kilojoules to Kilocalories (food calories)
- Joules to Calories (small, thermochemical)
- Calories (small, thermochemical) to Joules
- Kilowatt-hours to Megajoules
- Megajoules to Kilowatt-hours
- Kilowatt-hours to BTU
- BTU to Kilowatt-hours
Machine access
- API:
GET https://tttkmbb.com/api/v1/convert?value=5&from_unit=kcal&to_unit=cal - MCP: server
https://tttkmbb.com/mcp, toolconvert_unitswith{"value":5,"from_unit":"kcal","to_unit":"cal"} - Markdown: https://tttkmbb.com/conversion/kcal-to-calories.md · JSON: https://tttkmbb.com/conversion/kcal-to-calories.json (add
?value=for a result) · Units: /api/v1/units?quantity=energy - OpenAPI operationId:
convert_units. Freshness:static. Authentication: none.