Power Converter
Convert between power units
891.132734
cal/s
rate：1 hp = 178.22654675 cal/s
Results in all units
5 hp| Unit | Symbol | Value |
|---|---|---|
| Metric | ||
| Watts | W | 3,728.499358 |
| Milliwatts | mW | 3,728,499.357911 |
| Kilowatts | kW | 3.728499 |
| Megawatts | MW | 0.003728 |
| Gigawatts | GW | 0.000004 |
| Joules/second | J/s | 3,728.499358 |
| Metric horsepower | PS | 5.069348 |
| Imperial / US | ||
| Mechanical horsepower | hp | 5 |
| BTU/hour | BTU/h | 12,722.167888 |
| BTU/second | BTU/s | 3.533936 |
| Foot pounds/second | ft·lb/s | 2,750 |
| Calories/second | cal/s | 891.132734 |
| Kilocalories/hour | kcal/h | 3,208.077841 |
| Tons of refrigeration | TR | 1.060181 |
Popular Power Conversions
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51 Foot pounds/second
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69,146.7154 Milliwatts
21 Watts
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0.0199 BTU/second
67 Tons of refrigeration
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173,791.1352 Foot pounds/second
90 Megawatts
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77,437,858.5086 Kilocalories/hour
5 Mechanical horsepower
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891.1327 Calories/second
37 BTU/second
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52.3496 Mechanical horsepower
498 Mechanical horsepower
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504.9071 Metric horsepower
87 Metric horsepower
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0.064 Megawatts
87 Joules/second
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0.087 Kilowatts
31 Calories/second
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0.1297 Kilowatts
Common Scenarios
Power conversion is frequently used in automotive manufacturing, appliance purchases, and air conditioning. Car enthusiasts compare kilowatts (kW) and horsepower (hp). When choosing AC units, understanding "tons of refrigeration (TR)" is necessary.
History & Background
The concept of power originated in the Industrial Revolution. After James Watt improved the steam engine, he proposed "horsepower" to demonstrate its efficiency. Later, to honor him, physics named the power of one joule per second a "watt" (W).
Conversion Details
Power conversion is based on the watt (W), representing work done per unit time.
Common conversions: 1 hp ≈ 745.7 W, 1 metric hp ≈ 735.5 W, 1 kW ≈ 1.341 hp.