NiftyRecipe Online energy conversion
kWh/kcal 860.42065 cal/MJ 0.000004 kJ/cal 239.005736 MJ/cal 239005.736138 BTU/kcal 0.252164 kWh/BTU 3412.141633
J / kcal

100 joules in kilocalorie

0.023901 kilocalorie

1 J = 0.000239 kcal · factor

Reverse: 1 kilocalorie ≈ 4184 joule. Use the reference table for common values.

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

Common values

kilocalorie to joule 1 joule in kilocalorie

Same amount, other units

100 joules → kJ
Formula: joule to kilocalorie

kcal = J × 0.000239 (1 J = 0.000239 KCAL)

Reference values: joule → kilocalorie
J kcal
1 J 0.000239 kcal
100 J 0.023901 kcal
200 J 0.047801 kcal
500 J 0.119503 kcal
1000 J 0.239006 kcal
2000 J 0.478011 kcal

All amounts for this pair

FAQ for J → kcal
100 joules in kilocalorie

NiftyRecipe converts 100 joules to 0.023901 kilocalorie with a fixed SI-linked factor.

Kilojoules and megajoules describe energy on a scientific scale. The ratio applied here is 1 joule = 0.000239 kilocalorie, so this amount is 0.023901 kilocalorie. Reverse check: 1 kilocalorie ≈ 4184 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.