Energy Converter

Convert between chemical, electrical and physical energy units.

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Related Conversions
5 kJ to BTU 10 kJ to BTU 25 kJ to BTU 891 kJ to BTU 1,188 kJ to BTU 1,980 kJ to BTU 2,376 kJ to BTU 3,960 kJ to BTU 9,900 kJ to BTU 19,800 kJ to BTU 50,000 kJ to BTU 100,000 kJ to BTU
Reverse Conversions
5 BTU to kJ 10 BTU to kJ 50 BTU to kJ 100 BTU to kJ 500 BTU to kJ 792 BTU to kJ 1,089 BTU to kJ 1,584 BTU to kJ 2,376 BTU to kJ 2,500 BTU to kJ 3,960 BTU to kJ 25,000 BTU to kJ
More Energy Conversions
100 J to cal 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 cal to J 1 kWh to cal

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Recent Tools

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

AA battery 10 kJ
Match stick 1 kJ
Cup of coffee 5 kJ
100 W bulb for 1 hour 0.1 kWh
Gasoline liter 34 MJ
Laptop full charge 200 kJ

Formula

BTU = kJ × 0.9478169879

Example

Example: convert 990 kilojoules to British thermal units.

990 kJ = 938.33881803 BTU

Conversion table

kilojoules (kJ) British thermal units (BTU)
1 kJ 0.94781699 BTU
2 kJ 1.89563398 BTU
5 kJ 4.73908494 BTU
10 kJ 9.47816988 BTU
20 kJ 18.95633976 BTU
50 kJ 47.3908494 BTU
100 kJ 94.78169879 BTU

Explanation

These are both units.

How to convert kilojoules to British thermal units

  1. Start with the value in kilojoules (kJ).
  2. Multiply it by 0.9478169879.
  3. The result is the measurement in British thermal units (BTU).

Example: 990 kJ → 938.33881803 BTU

Frequently Asked Questions

How much is 990 kilojoules in British thermal units?

990 kilojoules is about 938.339 British thermal units.

How many British thermal units is 1 kilojoule?

1 kilojoule equals 0.947816987913 British thermal units.

How many kilojoules is 1 British thermal unit?

1 British thermal unit equals 1.055056 kilojoules.

What is the difference between kilojoules and British thermal units?

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 kilojoules and British thermal units 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 kilojoule equal 0.947816987913 British thermal units?

Because the units are defined with a fixed relationship. To convert kilojoules to British thermal units, multiply by that factor.