kcal / J

Kilocalorie to Joule converter

1 kcal = 4184 J

This is the Kilocalorie to Joule converter. The factor is fixed: 1 kcal = 4184.0 J. Open a common amount below, or type any value — only selected amounts are indexed.

Common values

joule to kilocalorie

Same amount, other units

1 kilocalorie → kJ 1 kilocalorie → cal 1 kilocalorie → kWh 1 kilocalorie → BTU 1 kilocalorie → MJ 1 kilocalorie → 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

Common conversions

1 kcal → 4184 J

FAQ for kcal → J

Manual formula?

J = kcal × 4184 (1 KCAL = 4184 J)

Reverse factor?

1 joule ≈ 0.000239 kilocalorie.

How much is 1 kilocalorie in joule?

4184 joule (1 kilocalorie = 4184 joule).

How many kJ in 1 MJ?

Exactly 1000 kJ. Larger or mixed conversions still follow the fixed chain used by the calculator.

When is MJ more practical than kJ?

For larger totals-process energy, some statistical tables. Food labels usually stay in kJ or kcal.

How the Kilocalorie to Joule converter works

This hub describes the pair, not a single number. Pages like 1, 10 or 100 Kilocalorie answer exact searches.

NiftyRecipe uses thermochemical energy factors (for example 1 kcal = 4184 J). Results do not change with the time of day.