Kilojoules to BTU Converter
Kilojoules are the metric unit of energy — on nutrition labels outside the US and in physics — while BTUs rule American heating, cooling, and appliances. Converting kJ to BTU matters when comparing a European heat pump's output with a US air conditioner's 12,000 BTU rating, or reading international equipment specs. One kilojoule equals 0.947817 BTU — multiply kilojoules by 0.947817. The converter above works instantly both ways, the table covers typical appliance ratings, and the FAQs translate familiar specs.
kJ to BTU Calculator
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Quick Reference Table
| Kilojoules (kJ) | BTUs (BTU) |
|---|---|
| 1 | 0.9478 |
| 2 | 1.8956 |
| 3 | 2.8435 |
| 4 | 3.7913 |
| 5 | 4.7391 |
| 6 | 5.6869 |
| 7 | 6.6347 |
| 8 | 7.5825 |
| 9 | 8.5304 |
| 10 | 9.4782 |
| 5000 | 4739.0856 |
| 10000 | 9478.1712 |
| 12660.7 | 12000.0282 |
| 50000 | 47390.856 |
Frequently Asked Questions
How many btus are in 1000 kilojoules?
1000 kilojoules = 947.8171 btus. Just apply the conversion to any value with the converter above.
What is the formula to convert kilojoules to btus?
To convert kilojoules to btus, multiply the number of kilojoules by 0.947817. In short: 1 kJ = 0.947817 BTU.
How many BTU are in 1,000 kJ?
1,000 kJ equals 947.817 BTU. Multiply 1000 × 0.9478171203 = 947.8171 BTU. Enter 1000 in the converter to verify.
How do I convert btus back to kilojoules?
Simply reverse the math: to go from btus to kilojoules, divide the btus by 0.947817. Or use our dedicated BTUs to Kilojoules converter.