Calories to Gigajoules

Convert calories (cal) to gigajoules (GJ) with formulas, examples, and conversion tables.

cal
GJ
1 cal = 4.184e-9 GJ
Full precision:4.184e-9 GJ
Step-by-Step Solution

To convert 1 calories to gigajoules, we divide by 239005736.14 because one gigajoule equals exactly 239005736.14 calories.

1 gigajoule = 239005736.14 calories

Since there are 239005736.14 calories in every gigajoule, we divide our value by this factor:

1 ÷ 239005736.14 = 4.184e-9 gigajoules

So 1 calories = 4.184e-9 gigajoules.

Quick check: 4.184e-9 × 239005736.14 = 1 calories

How to Convert Calories to Gigajoules

To convert calories to gigajoules, divide the value by 239005736.14.

The Formula

Gigajoules = Calories ÷ 239005736.14

Key Fact

1 gigajoule = 239005736.14 calories

Tip: To convert gigajoules back to calories, multiply by 239005736.14.

Example Conversions

Example 1: 1 cal = 4.184e-9 GJ
1 ÷ 239005736.14 = 4.184e-9
Example 2: 5 cal = 2.092e-8 GJ
5 ÷ 239005736.14 = 2.092e-8
Example 3: 10 cal = 4.184e-8 GJ
10 ÷ 239005736.14 = 4.184e-8

Calories to Gigajoules Table

CaloriesGigajoules
1 cal4.184e-9 GJ
2 cal8.368e-9 GJ
5 cal2.092e-8 GJ
10 cal4.184e-8 GJ
20 cal8.368e-8 GJ
25 cal1.046e-7 GJ
50 cal2.092e-7 GJ
100 cal4.184e-7 GJ
250 cal1.046e-6 GJ
500 cal2.092e-6 GJ
1000 cal4.184e-6 GJ

1 Calorie in Other Units

Unit1 cal =
Calories to Joules4.184 J
Calories to Kilojoules0.004184 kJ
Calories to Megajoules0.00000418 MJ
Calories to Gigajoules4.184e-9 GJ
Calories to Watt-hours0.0011622 Wh
Calories to Kilowatt-hours0.00000116 kWh
Calories to Megawatt-hours1.1622e-9 MWh
Calories to Kilocalories0.001 kcal
Calories to BTU0.0039657 BTU
Calories to Therms3.9657e-8 therm
Calories to Foot-pounds3.086 ft·lb
Calories to Electronvolts2.6114e+19 eV
Calories to Ergs41840000 erg

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