Skip to tool

Categories

Unit conversion / Energy converter

Convert Calories to Joules (cal to J)

1 cal = 4.184 J. Convert calories to joules in this browser tab, with the exact factor and worked examples.

On-device prototype

Calories to Joules, worked out

Exact factor: multiply calories by 4.184 to get joules.

1 cal
= 4.184 J
10 cal
= 41.84 J
100 cal
= 418.4 J

Energy converter

Convert joules, watt-hours, calories, and BTU.

Auto-calculating

Chosen from where these tools sit in the catalogue — the same workbench, the same category, the same words. Nothing here measures what you or anyone else opened.