Kcal to Calories Converter
Convert kilocalories to calories easily. Free kcal to calorie converter for nutrition.
Formula
cal = kcal × 1000
Common Conversions
How to Convert Kcal to Calories
1 kcal = 1,000 small calories. Multiply kcal by 1,000 to get small calories. So 250 kcal × 1,000 = 250,000 cal. This conversion only matters in scientific contexts; for nutrition, kcal IS the food 'calorie' (despite the labels just saying 'calories').
When a recipe or food label says '250 calories,' this means 250 kcal = 250,000 small calories. Most calorie-tracking apps and food databases use kcal even when labelled simply 'calories.' The conversion to small cal is mostly relevant for thermodynamic or chemistry calculations.
Kcal to Calories (small)
| Kcal | Small Calories |
|---|---|
| 1 kcal | 1000 cal |
| 10 kcal | 10000 cal |
| 100 kcal | 100000 cal |
| 250 kcal | 250000 cal |
| 500 kcal | 500000 cal |
| 1000 kcal | 1000000 cal |
| 2000 kcal (daily) | 2000000 cal |
| 3500 kcal (1 lb fat) | 3500000 cal |
Frequently Asked Questions
Why is there confusion between cal and kcal?
The 'big calorie' was originally written 'Calorie' (capital C) and 'small calorie' was 'calorie' (lowercase). When food labels dropped the capital, the distinction became invisible. Most everyday usage is fine treating 'calorie' as kcal in nutrition contexts.
How many kcal in a pound of fat?
Roughly 3,500 kcal in a pound of body fat. To lose 1 lb of fat, you need a 3,500 kcal deficit (deficit of 500 kcal/day for a week). This rule of thumb is approximate but useful for weight management math.
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