40 kilocalories to calories (40 kcal to cal)
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Open the full kilocalories to calories converter
Formula
To convert kilocalories to calories, multiply the value by 1000.
cal = kcal × 1000
How to convert 40 kcal to cal
40 kcal × 1000 = 40000 cal
Values near 40 kcal
| kcal | cal |
|---|---|
| 30 | 30000.0000 |
| 31 | 31000.0000 |
| 32 | 32000.0000 |
| 33 | 33000.0000 |
| 34 | 34000.0000 |
| 35 | 35000.0000 |
| 36 | 36000.0000 |
| 37 | 37000.0000 |
| 38 | 38000.0000 |
| 39 | 39000.0000 |
| 40 | 40000.0000 |
| 41 | 41000.0000 |
| 42 | 42000.0000 |
| 43 | 43000.0000 |
| 44 | 44000.0000 |
| 45 | 45000.0000 |
| 46 | 46000.0000 |
| 47 | 47000.0000 |
| 48 | 48000.0000 |
| 49 | 49000.0000 |
| 50 | 50000.0000 |
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About the units
- Kilocalorie (kcal)
- The "food calorie" on nutrition labels. Equal to 4,184 joules.
- Calorie (cal)
- The thermochemical calorie is exactly 4.184 joules, historically the heat to warm one gram of water by 1 °C.
Frequently asked questions
- How do I convert kilocalories to calories?
- To convert kilocalories to calories, multiply the value by 1000.
- How many calories are in 1 kilocalorie?
- 1 kilocalorie equals 1000 cal.
- How many calories are in 10 kilocalories?
- 10 kcal equals 10000 cal.
- How do I convert calories back to kilocalories?
- Use the reverse converter: 1 calorie equals 0.001 kcal.
- Is this converter accurate?
- Yes. It uses the exact SI/NIST definitions of each unit and shows up to 6 significant digits.
Related conversions
- Reverse conversion: calories → kilocalories
- joules → calories
- calories → joules
- joules → kilocalories
- kilocalories → joules
- kilojoules → calories
- calories → kilojoules
- kilojoules → kilocalories
- kilocalories → kilojoules