Power and Energy
kcaltocal
Convert kilocalories (kcal) to thermochemical calories (cal).
Factor1 kcal = 1000 cal
Converter
kcal
Accepts numbers or expressions, e.g. 150 + 14.7
Result
cal
Rendered to 6 significant figures.
Formula
Formula
cal = kcal × 1000
Multiply any value in kilocalories by 1000 to obtain the value in thermochemical calories.
Worked example
Convert 1 kcal to cal.
- 01Start with 1 kcal.
- 02Multiply by the conversion factor: 1 × 1000 = 1000 cal.
Result1 kcal = 1000 cal
Conversion table
| kcal | cal |
|---|---|
| 1 | 1000 |
| 2 | 2000 |
| 5 | 5000 |
| 10 | 10000 |
| 20 | 20000 |
| 50 | 50000 |
| 100 | 1.0000e+5 |
| 200 | 2.0000e+5 |
| 500 | 5.0000e+5 |
| 1000 | 1.0000e+6 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from kcal to cal?
1 kcal equals 1000 cal. To convert, multiply the value in kilocalories by 1000.
How do I convert 1 kcal to cal?
1 kcal = 1000 cal. For any value, multiply by 1000.
How do I convert cal back to kcal?
Divide by the same factor — or equivalently, multiply by 0.001. So 1 cal = 0.001 kcal.
When would I need to convert kilocalorie to thermochemical calorie?
Energy conversions are needed when reconciling fuel/electrical billing, calculating thermal duties, and aligning calorimetry or HHV/LHV figures across data sources.
Is the conversion exact?
The factor shown is precise to at least 7 significant figures. For most process-engineering work this is far better than instrument accuracy. For metrology or trade applications, refer to the relevant national standard (NIST, BIPM, ISO 80000).