Joules (J) to Calories (cal) Converter

Energy conversions bridge the gap between physics units (joules), nutrition labels (calories), and utility bills (kilowatt-hours). This page covers the most common cross-unit lookups.

Formula

cal = J ÷ 4.184

Need to convert a custom value? Use the full interactive energy converter.

Open Calculator
Joules (J)Calories (cal)
100 J23.9 cal
500 J119.5 cal
1,000 J239.01 cal
2,000 J478.01 cal
4,184 J1,000 cal
5,000 J1,195.03 cal
10,000 J2,390.06 cal
20,000 J4,780.11 cal
50,000 J11,950.29 cal
100,000 J23,900.57 cal

Frequently Asked Questions