Energy Converter
Convert between energy / work / heat units
0.081
kWh
rate：1 Wh = 0.001 kWh
Results in all units
81 Wh| Unit | Symbol | Value |
|---|---|---|
| Metric | ||
| Joules | J | 291,600 |
| Kilojoules | kJ | 291.6 |
| Megajoules | MJ | 0.2916 |
| Millijoules | mJ | 291,600,000 |
| Calories | cal | 69,694.072658 |
| Kilocalories | kcal | 69.694073 |
| Calories (nutritional) | Cal | 69.694073 |
| Watt hours | Wh | 81 |
| Kilowatt hours | kWh | 0.081 |
| Megawatt hours | MWh | 0.000081 |
| Ergs | erg | 2,916,000,000,000 |
| Electron volts | eV | 1.820024e+24 |
| Imperial / Other | ||
| British thermal units | BTU | 276.383472 |
| Foot pounds | ft·lb | 215,073.122729 |
| Horsepower hours | hp·h | 0.108623 |
| Therms | thm | 0.002764 |
| Tons of TNT | tTNT | 0.00007 |
Popular Energy Conversions
Recent Conversions
ClearTrending Conversions
Just Converted
2 Tons of TNT
→
8,368 Megajoules
7 Joules
→
1.673e-9 Tons of TNT
52 Foot pounds
→
2.626263e-5 Horsepower hours
88 Kilowatt hours
→
316.8 Megajoules
28 Megajoules
→
6,692,160.6119 Calories
55 Millijoules
→
1.527778e-5 Watt hours
26 Millijoules
→
7.222222e-6 Watt hours
81 Watt hours
→
0.081 Kilowatt hours
461 Kilojoules
→
110.1816 Kilocalories
30 Kilocalories
→
3e-5 Tons of TNT
Common Scenarios
Energy conversion is widely used in energy trading, nutrition, and engineering thermodynamics. In nutrition, we often look at food labels converting between kilocalories (kcal) and kilojoules (kJ). On electricity bills, kilowatt-hours (kWh) are the billing unit.
History & Background
The concept of energy took a long time to form. Later, James Joule proved through his "mechanical equivalent of heat" experiment that heat and work are interconvertible, leading to the energy unit "joule" named after him.
Conversion Details
Energy conversion is based on the joule (J), covering work, heat and electrical energy.
Common conversions: 1 kcal = 4.184 kJ, 1 kWh = 3.6 MJ, 1 BTU ≈ 1,055 J.