Horsepower-Hour (hp h)
Convert Horsepower-Hour to Other Units
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About the Horsepower-Hour
Unit Details
Quick Conversions
Reference Chart
Horsepower-Hour Reference Chart - Energy Conversions
Interactive conversion chart showing energy unit relationships. Compare 8 common units with precise calculations.
| Unit | Symbol | Equivalent to 1 aJ |
|---|---|---|
| AttojouleBase Unit | aJ | 1 |
| Btu (International) | Btu | 1.055E21 |
| Btu (Thermochemical) | Btu | 1.054E21 |
| Calorie (International) | cal | 4.187E18 |
| Calorie (Nutritional) | cal | 4.187E21 |
| Calorie (Thermochemical) | cal | 4.184E18 |
| Dyne-Centimeter | dyn cm | 1E11 |
| Electron Volt | eV | 0.16021 |
Quick Reference
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Conversion Accuracy
All conversions use official conversion factors and are calculated with maximum precision to ensure professional-grade accuracy.
Comparison Table
Horsepower-Hour Comparison Table
Compare Horsepower-Hour values with 6 other energy units. Quick reference for common conversion values.
| Horsepower-Hour (hp h) | Attojoule (aJ) | Btu (International) (Btu) | Btu (Thermochemical) (Btu) | Calorie (International) (cal) | Calorie (Nutritional) (cal) | Calorie (Thermochemical) (cal) |
|---|---|---|---|---|---|---|
| 1 | 2.685E24 | 2,544.43366 | 2,546.137431 | 641,186.586414 | 641.186586 | 641,615.678776 |
| 5 | 1.342E25 | 12,722.168302 | 12,730.687153 | 3.206E6 | 3,205.932932 | 3.208E6 |
| 10 | 2.685E25 | 25,444.336604 | 25,461.374306 | 6.412E6 | 6,411.865864 | 6.416E6 |
| 25 | 6.711E25 | 63,610.84151 | 63,653.435766 | 1.603E7 | 16,029.66466 | 1.604E7 |
| 50 | 1.342E26 | 127,221.68302 | 127,306.871532 | 3.206E7 | 32,059.329321 | 3.208E7 |
| 100 | 2.685E26 | 254,443.366039 | 254,613.743064 | 6.412E7 | 64,118.658641 | 6.416E7 |
How to Use This Table
Find the value in Horsepower-Hour in the first column, then read across to see the equivalent values in other energy units.
Precision Note
All conversions are calculated using precise conversion factors with locale-appropriate number formatting for optimal readability.
About the Horsepower-Hour
The Horsepower-Hour (hp h) is a unit of energy measurement. Use our converter above to convert Horsepower-Hour to any other energy unit instantly