kcal to cal Converter - Kilocalorie to Calorie
Kilocalorie (kcal) to Calorie (cal)
Direct answer
1 kcal = 1,000 cal
cal = kcal × 1,000
Converter
Conversion formula
cal = kcal × 1,000
kcal = cal × 0.001
Example: 10 kcal = 10 × 1,000 = 10,000 cal.
Common conversion table
| kcal | cal |
|---|---|
| 1 kcal | 1,000 cal |
| 2 kcal | 2,000 cal |
| 5 kcal | 5,000 cal |
| 10 kcal | 10,000 cal |
| 20 kcal | 20,000 cal |
| 50 kcal | 50,000 cal |
| 100 kcal | 100,000 cal |
| 1,000 kcal | 1,000,000 cal |
Conversion derivation
Express both kcal and cal in the same base unit J (joule), then cancel the shared base unit.
- 1
Rewrite kcal in the base unit
- 2
Rewrite cal in the base unit
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Forward conversion
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Reverse conversion
AI explanation for this conversion
This pre-generated explanation is schema-checked. Numeric results still come from the page formula and calculator.
Why the kcal to cal conversion factor is 1,000
The conversion factor of 1,000 arises from the metric prefix 'kilo', which denotes a factor of 1,000. Therefore, one kilocalorie (kcal) contains 1,000 calories (cal).
Definition
A kilocalorie (kcal) is a unit of energy defined as 1,000 calories (cal).
Principle
Both the kilocalorie and the calorie are defined in relation to the joule. Dividing the joule equivalent of 1 kcal by the joule equivalent of 1 cal gives the conversion factor.
Assumptions
- The definitions used are the thermochemical calorie and kilocalorie as provided.
- The conversion is exact based on the given factor definitions.
Cautions
- In some contexts, 'calorie' may refer to the kilocalorie (food Calorie). This conversion uses the thermochemical definition.
- Rounding should be applied as needed for the precision of your calculation.
FAQ
How many cal are in 1 kcal?
1 kcal = 1,000 cal.
How many cal are in 10 kcal?
10 kcal = 10,000 cal.
How many cal are in 100 kcal?
100 kcal = 100,000 cal.
What is the formula to convert kcal to cal?
Use cal = kcal × 1,000.
How many kcal are in 1 cal?
1 cal = 0.001 kcal.
What should I check when converting kcal to cal?
Use the conversion factor and round the result to the precision required by your calculation.