Kilojoule/kilograms to BTU/pounds (kJ/kg to BTU/lb)
Free online kilojoule/kilogram to btu/pound converter. Type a value, get an instant exact result — plus the formula, a ready-made conversion table, and reverse conversion.
FUEL EFFICIENCY (MASS) CONVERTER — INSTANT RESULT
Formula: multiply the kilojoule/kilogram value by 0.42992255 — i.e. BTU/lb = kJ/kg × 0.42992255
Quick check: 1 kJ/kg = 0.42992255 BTU/lb
Quick check: 1 kJ/kg = 0.42992255 BTU/lb
Kilojoule/kilograms to BTU/pounds conversion table
| Kilojoule/kilograms (kJ/kg) | BTU/pounds (BTU/lb) |
|---|---|
| 1 kJ/kg | 0.42992255 BTU/lb |
| 2 kJ/kg | 0.85984511 BTU/lb |
| 3 kJ/kg | 1.28976766 BTU/lb |
| 4 kJ/kg | 1.71969022 BTU/lb |
| 5 kJ/kg | 2.14961277 BTU/lb |
| 6 kJ/kg | 2.57953532 BTU/lb |
| 7 kJ/kg | 3.00945788 BTU/lb |
| 8 kJ/kg | 3.43938043 BTU/lb |
| 9 kJ/kg | 3.86930299 BTU/lb |
| 10 kJ/kg | 4.29922554 BTU/lb |
| 15 kJ/kg | 6.44883831 BTU/lb |
| 20 kJ/kg | 8.59845108 BTU/lb |
| 25 kJ/kg | 10.74806385 BTU/lb |
| 30 kJ/kg | 12.89767662 BTU/lb |
| 40 kJ/kg | 17.19690216 BTU/lb |
| 50 kJ/kg | 21.4961277 BTU/lb |
| 75 kJ/kg | 32.24419155 BTU/lb |
| 100 kJ/kg | 42.9922554 BTU/lb |
| 250 kJ/kg | 107.48063849 BTU/lb |
| 500 kJ/kg | 214.96127698 BTU/lb |
| 1,000 kJ/kg | 429.92255397 BTU/lb |
How to convert kilojoule/kilograms to btu/pounds
To convert kilojoule/kilograms to btu/pounds, multiply the amount in kilojoule/kilograms by 0.42992255. For example, 10 kJ/kg = 4.29922554 BTU/lb. To convert in the other direction, divide by the same factor, or use the ⇄ swap button above.
Convert specific energy (heating value) of fuels between J/kg, kcal/kg and BTU/lb. Gasoline's lower heating value is about 44 MJ/kg.
Frequently asked questions
How many btu/pounds are in one kilojoule/kilogram?
One kilojoule/kilogram is exactly 0.42992255 btu/pounds.
How do I convert kJ/kg to BTU/lb?
Multiply the kJ/kg value by 0.42992255 to get BTU/lb. The converter at the top of this page does this automatically and works in both directions.
How much is 100 kilojoule/kilograms in btu/pounds?
100 kilojoule/kilograms equals 42.9922554 btu/pounds.