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Kilocalorie (food calorie) to Gigajoule (kcal → GJ)

Convert kilocalorie (food calorie) to gigajoule instantly. The conversion factor below is exact by international definition.

Realtime·energy·metric
Exact
kcal
× 0
GJ
0.00000418
Precision [auto]
6

📐kcal to GJ formulaExact

GJ = kcal × 4.184000e-6
Inverse: kcal = GJ × 239005.736137667292

Worked example: 1 kcal = 4.184000e-6 GJ

ℹ️About these units

Kilocalorie (food calorie) (kcal)
Nutrition labels in the US and worldwide as "Calorie".
Gigajoule (GJ)

📊Reference table: kcal → GJ

Kilocalorie (food calorie) (kcal)Gigajoule (GJ)
10.00000418
20.00000837
50.00002092
100.00004184
150.00006276
200.00008368
250.0001046
500.0002092
1000.0004184
2500.001046
5000.002092
7500.003138
1,0000.004184

Want a downloadable CSV? Append ?format=csv to the API /api/v1/table endpoint.

🔁Reverse & related

Reverse: GJ → kcalkcal → kJkcal → Jkcal → MJkcal → calkcal → Whkcal → kWhkcal → MWhkcal → BTU

🔌API & widget

GET https://convertnavi.com/api/v1/convert?value=10&from=kilocalorie&to=gigajoule
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