1 Calorie To Joule

Convert between chemical, electrical and physical energy units.

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

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Common Benchmarks

Gasoline liter 34 MJ
Cup of coffee 5 kJ
AA battery 10 kJ
Match stick 1 kJ
Slice of bread 330 kJ
100 W bulb for 1 hour 0.1 kWh

Frequently Asked Questions

How many joules is 1 calorie?

1 calorie equals 4.184 joules.

How many calories is 1 joule?

1 joule equals 0.239005736138 calories.

What is the difference between calories and joules?

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 calories and joules 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 calorie equal 4.184 joules?

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

How do you convert calories to joules?

Multiply the value in calories by 4.184 to get joules.