Energy & Power calculator
Horsepower to Watts Converter
Convert horsepower (hp) to watts (w) with the exact power formula, worked examples, and a common-values table.
Exact conversion
Horsepower to watts formula
w = hp × 745.699872
1 hp equals 745.699872 w. 10 hp equals 7456.99872 w.
About these units
- hp
- Horsepower (hp) is a power unit used in this converter.
- w
- Watt (w) is a power unit used in this converter.
Before you use the result
hp to w context and checks
- Best use
- Use power conversions for electrical, mechanical, HVAC, and equipment-rating comparisons.
- Common mistake
- Do not confuse power with energy. Kilowatts describe rate; kilowatt-hours describe energy consumed over time.
- Precision note
- Match the rating basis, such as mechanical horsepower, electrical watts, or BTU per hour, before comparing equipment.
Example check: 1 hp converts to 745.699872 w. Use this known value to sanity-check a spreadsheet, homework solution, spec sheet, or manual calculation.
Common hp to w conversion table
| hp | w |
|---|---|
| 1 hp | 745.699872 w |
| 5 hp | 3728.49936 w |
| 10 hp | 7456.99872 w |
| 25 hp | 18,642.4968 w |
| 50 hp | 37,284.9936 w |
| 100 hp | 74,569.9872 w |
FAQ8 common questions for this calculator.
FAQs
How do I convert horsepower to watts?+
Use this formula: w = hp × 745.699872. Enter the hp value and the calculator applies the relationship immediately.
How many w are in 1 hp?+
1 hp equals 745.699872 w.
What is 10 hp in w?+
10 hp equals 7456.99872 w. The displayed result may be rounded, while the calculator keeps full precision internally.
Can I convert watts back to horsepower?+
Yes. Use Swap in the converter to reverse the units and calculate w to hp.
How does the Horsepower to Watts Converter calculate the result?+
For the Horsepower to Watts Converter, it uses the Horsepower to watts formula: w = hp × 745.699872. 1 hp equals 745.699872 w. 10 hp equals 7456.99872 w.
What information do I need to use the Horsepower to Watts Converter?+
Enter the values requested by the form, keep units consistent, and use the displayed assumptions to decide whether the Horsepower to Watts Converter matches your scenario.
How accurate is the Horsepower to Watts Converter?+
Horsepower to Watts Converter is accurate for the values and assumptions entered on this page. It uses the Horsepower to watts formula. Recheck the inputs before relying on the estimate.
What should I check before using the Horsepower to Watts Converter result?+
For the Horsepower to Watts Converter, check that the units, inputs, and assumptions match your situation. Change one input at a time to understand which values have the largest effect on the result.
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How to use the Horsepower to Watts Converter
Convert horsepower (hp) to watts (w) with the exact power formula, worked examples, and a common-values table. Use the instant result for the horsepower to watts conversion, then check the common-value table, reverse link, and unit notes before copying the answer.
- 1
Enter Horsepower
Type the horsepower value you want to convert. Decimal values work when you need a partial unit.
- 2
Read Watts
Use the main result for the exact watts value, then scan the common-value table for nearby reference points.
- 3
Confirm Horsepower to Watts
Confirm the horsepower to watts unit symbols before using the number in a report, product listing, invoice, or assignment.