100 Calories (small) to Joules
100 Calories (small) in Joules
418.4 Joules
1 Calories (small) = 4.184 Joules
100 calories (small) is equal to 418.4 joules.
Quick reference
More energy conversions
Joules → Calories (small)
Kilocalories (food) → KilojoulesKilojoules → Kilocalories (food)Kilowatt-hours → BTUBTU → Kilowatt-hours All converters
Frequently asked questions
What is the exact formula for Calories (small) to Joules?
Multiply the Calories (small) value by 4.184. This comes from the exact unit definitions, not a rounded approximation.
Is this conversion exact?
The underlying ratio is exact where a legal definition exists (for example, 1 inch = 25.4 mm exactly). Displayed results are rounded to six decimal places for readability.
Can I convert Joules back to Calories (small)?
Yes. Use the reverse converter linked below, or just swap which field you type into: the live converter recalculates either direction.