PowerHorsepower to Watts

Horsepower to Watts

Methodology·How We Verify

Snapshot

1 Horsepower equals 745.699872 Watts.

Reference basis: This conversion uses exact watt-based power definitions.
Example: For 0.1 Horsepower, the result equals 74.569987 Watts.

Interactive conversion

Converter Calculator

Decimals: 1.5 or 1,5. Fractions: 1/2. Scientific notation: 1e3. Write 1000 without grouping separators.

745.699872 Watts (W)

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API and AI agent access

Horsepower to Watts.

Machine-readable identifiers

Conversion family: power
Source unit: horsepower
Target unit: watts

Use these identifiers in the API request. Sources and model limits also apply to software clients.

Example API request and response

POST /api/v1/convert

Request

{
  "family": "power",
  "value": 1,
  "from": "horsepower",
  "to": "watts"
}

Essential response

{
  "ok": true,
  "conversion": {
    "family": "power",
    "value": 1,
    "from": "horsepower",
    "to": "watts",
    "result": {
      "raw": 745.6998715822702,
      "display": "745.699872"
    },
    "canonicalPath": "/power/horsepower-to-watts/"
  }
}

API, OpenAPI and WebMCP documentation

Explanation

Multiply by 745.6998715822702 because 1 hp = 745.6998715822702 W and 1 W = 1 W.

Method & Reference

Method basis: exact conversion formula shown in Snapshot.
Applied factor: 1 Horsepower = 745.699872 Watts.
Consistency rule: calculator output and table values use the same constants and rounding policy.

Common Conversion Values

Horsepower (hp)	Watts (W)
0.1	74.569987
1	745.699872
10	7,456.998716
100	74,569.987158
1000	745,699.871582
10000	7,456,998.715823

Questions & answers

Frequently Asked Questions

What is 1 horsepower in watts?

1 Horsepower equals 745.699872 Watts on this page.

When would I convert horsepower to watts?

This route is useful when comparing motor and engine ratings across watts, kilowatts, horsepower, and metric horsepower without mixing the underlying definitions.

How do I reverse Horsepower to Watts?

Use the mirror Watts to Horsepower route; it applies the inverse relationship with the same power assumptions.