Specific energy
Energy stored or released per unit mass.
Try a decimal, 1e-9, 1/3, or 5 1/2.
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Convert kilojoule per kilogram (kJ/kg) to Btu per pound (BtuIT/lb). Enter a value for an instant result, or use the examples and reverse conversion below.
Energy stored or released per unit mass.
Try a decimal, 1e-9, 1/3, or 5 1/2.
Enter a kilojoule per kilogram value to calculate Btu per pound with full internal precision before display rounding.
Auto trims unnecessary zeroes and uses scientific notation for extreme magnitudes. Use Digits to set the display precision; calculations retain full precision.
| Unit | Symbol | Converted value |
|---|---|---|
| joule per kilogramfrom kJ/kg | J/kg | 1000 |
| kilojoule per kilogramfrom kJ/kg | kJ/kg | 1 |
| megajoule per kilogramfrom kJ/kg | MJ/kg | 0.001 |
| watt-hour per kilogramfrom kJ/kg | Wh/kg | 0.277778 |
| kilowatt-hour per kilogramfrom kJ/kg | kWh/kg | 0.000277778 |
| thermochemical calorie per gramfrom kJ/kg | calₜₕ/g | 0.239006 |
| Btu per poundfrom kJ/kg | BtuIT/lb | 0.429923 |
SI symbols follow international notation. U.S. and Imperial measures are labelled separately where their values differ.
Kilojoule Per Kilogram (kJ/kg) and Btu per pound (BtuIT/lb) are units of specific energy. Use this page to convert in either direction.
| Kilojoule Per Kilogram (kJ/kg) | Btu Per Pound (BtuIT/lb) |
|---|---|
| 1 kJ/kg | 0.429923 BtuIT/lb |
| 5 kJ/kg | 2.14961 BtuIT/lb |
| 10 kJ/kg | 4.29923 BtuIT/lb |
| 100 kJ/kg | 42.9923 BtuIT/lb |
Examples are rounded to 6 significant digits. The interactive converter retains full calculation precision; change Display Precision to see more digits.
BtuIT/lb to kJ/kg (Btu per pound to kilojoule per kilogram)