Skip to content

Convert kilojoule to british thermal unit

Here you can quickly calculate how many british thermal unit fit in one kilojoule.

- scroll: formula · table · questions -

  • 1 kJ = 0.947817 BTU
  • 1 BTU = 1.055056 kJ

Kilojoule to british thermal unit conversion table

kilojoule british thermal unit
1 0.947817
2 1.895634
5 4.739086
10 9.478171
20 18.956342
50 47.390856
100 94.781712

Formula to convert kilojoule to british thermal unit

To convert kilojoule to british thermal unit, multiply by 0.947817.

1 kJ = 0.947817 BTU
Example: 1 kilojoule = 0.947817 british thermal unit

Common mistakes

  • The relationship is exact: 1 kWh = 3.6 MJ (3,600 kJ, because an hour has 3,600 seconds). The common slip is dividing when you should multiply: 10 kWh is 36 MJ, not 2.8. Remember the direction: kWh → MJ means times 3.6.
  • The 'BTU' rating on AC units and heat pumps almost always means BTU per hour, a power, not an amount of energy. A '12,000 BTU' unit delivers about 3.5 kW of cooling continuously, not a fixed energy budget. Compare via 1 kW ≈ 3,412 BTU/h.

Quick kilojoule to/from british thermal unit conversion quiz

Score: 0

9.5 british thermal unit equals 10 kilojoule.

Correct answer: 9.5 british thermal unit = 10 kilojoule.

129 kilojoule equals 104 british thermal unit.

Correct answer: 129 kilojoule = 122 british thermal unit.

24.1 kilojoule equals 25.1 british thermal unit.

Correct answer: 24.1 kilojoule = 22.8 british thermal unit.

More conversions in energy