NiftyRecipe Online energy conversion
kcal/cal 1000 kcal/BTU 3.965667 kWh/BTU 3412.141633 cal/BTU 0.003966 BTU/kJ 1.055056 cal/kWh 0.000001
kcal / J

1000 kilocalories in joule

4184000 joule

1 kcal = 4184 J · factor

1000 kilocalories equals 4184000 joule. Factor: 1 kilocalorie = 4184 joule.

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Common values

joule to kilocalorie 1 kilocalorie in joule

Same amount, other units

1000 kilocalories → kJ 1000 kilocalories → cal 1000 kilocalories → kWh 1000 kilocalories → BTU 1000 kilocalories → MJ 1000 kilocalories → Wh
Formula: kilocalorie to joule

J = kcal × 4184 (1 KCAL = 4184 J)

Reference values: kilocalorie → joule
kcal J
1 kcal 4184 J
100 kcal 418400 J
200 kcal 836800 J
500 kcal 2092000 J
1000 kcal 4184000 J
2000 kcal 8368000 J

All amounts for this pair

FAQ for kcal → J
1000 kilocalories in joule

NiftyRecipe converts 1000 kilocalories to 4184000 joule with a fixed SI-linked factor.

Kilojoules and megajoules describe energy on a scientific scale. The ratio applied here is 1 kilocalorie = 4184 joule, so this amount is 4184000 joule. Reverse check: 1 joule ≈ 0.000239 kilocalorie. 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.