NiftyRecipe Online energy conversion
BTU/cal 252.164401 kJ/cal 239.005736 cal/kWh 0.000001 kWh/BTU 3412.141633 cal/BTU 0.003966 kWh/kcal 860.42065
J / cal

2 joules in calorie

0.478011 calorie

1 J = 0.239006 cal · factor

Kilojoules and megajoules sit on the SI energy scale. This page is pure unit conversion-not a meal planner.

Enter a value and click Calculate - opens the page with the new result

Common values

calorie to joule 1 joule in calorie 3 joules in calorie 4 joules in calorie 5 joules in calorie 6 joules in calorie 8 joules in calorie 10 joules in calorie 12 joules in calorie 15 joules in calorie 20 joules in calorie

Related converters

J → kcal J → kJ
Formula: joule to calorie

cal = J × 0.239006 (1 J = 0.239006 CAL)

Reference values: joule → calorie
J cal
1 J 0.239006 cal
100 J 23.900574 cal
200 J 47.801147 cal
500 J 119.502868 cal
1000 J 239.005736 cal
2000 J 478.011472 cal

All amounts for this pair

FAQ for J → cal
2 joules in calorie

NiftyRecipe converts 2 joules to 0.478011 calorie with a fixed SI-linked factor.

Kilojoules and megajoules describe energy on a scientific scale. The ratio applied here is 1 joule = 0.239006 calorie, so this amount is 0.478011 calorie. Reverse check: 1 calorie ≈ 4.184 joule. 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.