Energy Converter

Convert between chemical, electrical and physical energy units.

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Related Conversions
1 cal to kWh 5 cal to kWh 25 cal to kWh 400 cal to kWh 450 cal to kWh 550 cal to kWh 800 cal to kWh 1,200 cal to kWh 2,000 cal to kWh 2,500 cal to kWh 25,000 cal to kWh 50,000 cal to kWh
Reverse Conversions
1 kWh to cal 10 kWh to cal 50 kWh to cal 100 kWh to cal 500 kWh to cal 600 kWh to cal 800 kWh to cal 1,200 kWh to cal 5,000 kWh to cal 25,000 kWh to cal 50,000 kWh to cal 100,000 kWh to cal
More Energy Conversions
1 GJ to kWh 1 GJ to MJ 1 MJ to BTU 100 J to cal 1 MJ to kWh 2 GJ to MJ 2 MJ to BTU 100 kJ to kcal 1 kWh to kJ 10,000 J to kJ

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Popular Conversions

Kilowatt-Hours to Megajoules Megajoules to Kilowatt-Hours Joules to Calories Kilocalories to Kilojoules British Thermal Units to Joules Watt-Hours to Joules

Common Benchmarks

Cup of coffee 5 kJ
Match stick 1 kJ
Laptop full charge 200 kJ
Phone battery 40 kJ
Gasoline liter 34 MJ
100 W bulb for 1 hour 0.1 kWh

Formula

kWh = cal × 0.0000011622

Example

Example: convert 500 calories to kilowatt-hours.

500 cal = 0.00058111 kWh

Conversion table

calories (cal) kilowatt-hours (kWh)
1 cal 0.00000116 kWh
2 cal 0.00000232 kWh
5 cal 0.00000581 kWh
10 cal 0.00001162 kWh
20 cal 0.00002324 kWh
50 cal 0.00005811 kWh
100 cal 0.00011622 kWh

Explanation

These are both units.

How to convert calories to kilowatt-hours

  1. Start with the value in calories (cal).
  2. Multiply it by 0.0000011622.
  3. The result is the measurement in kilowatt-hours (kWh).

Example: 500 cal → 0.00058111 kWh

Frequently Asked Questions

How much is 500 calories in kilowatt-hours?

500 calories is about 0.00058111 kilowatt-hours.

How many kilowatt-hours is 1 calorie?

1 calorie equals 0.000001162222 kilowatt-hours.

How many calories is 1 kilowatt-hour?

1 kilowatt-hour equals 860420.6500956 calories.

What is the difference between calories and kilowatt-hours?

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 kilowatt-hours 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 0.000001162222 kilowatt-hours?

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