20 calories in joule

83.68 joule

1 cal = 4.184 J · factor

Reverse: 1 joule ≈ 0.239006 calorie. Use the reference table for common values.

Common values

joule to calorie 1 calorie in joule 2 calories in joule 3 calories in joule 4 calories in joule 5 calories in joule 6 calories in joule 8 calories in joule 10 calories in joule 12 calories in joule 15 calories in joule

Same amount, other units

20 calories → kcal 20 calories → BTU 20 calories → kJ 20 calories → kWh 20 calories → MJ

Related converters

cal → kcal cal → BTU cal → kJ cal → kWh cal → MJ

Formula: calorie to joule

J = cal × 4.184 (1 CAL = 4.184 J)

Reference values: calorie → joule

cal	J
1 cal	4.184 J
100 cal	418.4 J
200 cal	836.8 J
500 cal	2092 J
1000 cal	4184 J
2000 cal	8368 J

All amounts for this pair

FAQ for cal → J

20 calories in joule

NiftyRecipe converts 20 calories to 83.68 joule with a fixed SI-linked factor.

Kilojoules and megajoules describe energy on a scientific scale. The ratio applied here is 1 calorie = 4.184 joule, so this amount is 83.68 joule. Reverse check: 1 joule ≈ 0.239006 calorie. That helps when a lab notebook or spreadsheet only lists one column.

Change the value in the calculator for homework, datasheets or rough process estimates. The wording stays technical on purpose so these pages read differently from food-label articles on the same site.