1 Joule To Calorie

Convert between chemical, electrical and physical energy units.

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Related Conversions
5 J to cal 25 J to cal 50 J to cal 100 J to cal 250 J to cal 500 J to cal 1,000 J to cal 5,000 J to cal 10,000 J to cal 25,000 J to cal 50,000 J to cal 100,000 J to cal
Reverse Conversions
1 cal to J 10 cal to J 25 cal to J 50 cal to J 250 cal to J 500 cal to J 1,000 cal to J 2,500 cal to J 10,000 cal to J 25,000 cal to J 50,000 cal to J 100,000 cal to J
More Energy Conversions
1 GJ to kWh 1 GJ to MJ 1 MJ to BTU 100 kJ to kcal 1 MJ to kWh 2 GJ to MJ 2 MJ to BTU 250 kcal to kJ 1 kWh to cal 10,000 J to kJ

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Common Benchmarks

100 W bulb for 1 hour 0.1 kWh
Phone battery 40 kJ
Food calorie 4184 J
Cup of coffee 5 kJ
AA battery 10 kJ
Slice of bread 330 kJ

Frequently Asked Questions

How many calories is 1 joule?

1 joule is about 0.239006 calories.

How many joules is 1 calorie?

1 calorie equals 4.184 joules.

What is the difference between joules and calories?

Both measure energy in SI. The main difference is usually scale: some units are convenient for smaller values, while others are used to express larger values more practically.

Where are joules and calories used?

They are used in physics and engineering to measure work, energy, and heat; the most practical unit depends on the magnitude.

Why does 1 joule equal 0.239005736138 calories?

Because the units are defined with a fixed relationship. To convert joules to calories, multiply by that factor.

How do you convert joules to calories?

Multiply the value in joules by 0.239005736138 to get calories.