Convert Horsepower (metric) (hp(M)) to Watts (W)

1 horsepower (metric) equals 735.499 watts.

Formula: W = hp(M) × 735.499

Horsepower (metric) to Watt Converter

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How to Convert Horsepower (metric) to Watt

1 horsepower (metric) = 735.499 watts

Watt = Horsepower (metric) × 735.499

Example: 1 hp(M) × 735.499 = 735.499 W

Reverse Conversion

To convert watts back to horsepower (metric):

  • Remember, 1 watt equals 0.00135962 horsepower (metric).
  • To convert 735.499 W to hp(M), multiply 735.499 x 0.00135962, resulting in 1 hp(M).

Common Horsepower (metric) to Watt Conversions

Horsepower (metric) to Watt (Part 1)
Horsepower (metric) to Watt common conversions part 1
Horsepower (metric) Watt Actions
1 horsepower (metric) 735.499 watts
5 horsepower (metric) 3677.49 watts
10 horsepower (metric) 7354.99 watts
Horsepower (metric) to Watt (Part 2)
Horsepower (metric) to Watt common conversions part 2
Horsepower (metric) Watt Actions
50 horsepower (metric) 36774.9 watts
100 horsepower (metric) 73549.9 watts

Horsepower (metric) to watts Conversion Table

Reference table with common horsepower (metric) to watts conversions. All values calculated with high precision.

Horsepower (metric) to Watts Table
0.0001 to 12

Horsepower (metric) Watts Actions
0.0001 hp(M) 0.0735499 W
0.00025 hp(M) 0.183875 W
0.0005 hp(M) 0.367749 W
0.001 hp(M) 0.735499 W
0.0025 hp(M) 1.83875 W
0.005 hp(M) 3.67749 W
0.01 hp(M) 7.35499 W
0.025 hp(M) 18.3875 W
0.05 hp(M) 36.7749 W
0.1 hp(M) 73.5499 W
14 hp(M) 183.875 W
12 hp(M) 367.749 W

Horsepower (metric) to Watts Table
1 to 100000

Horsepower (metric) Watts Actions
1 hp(M) 735.499 W
2 12 hp(M) 1838.75 W
5 hp(M) 3677.49 W
10 hp(M) 7354.99 W
25 hp(M) 18387.5 W
50 hp(M) 36774.9 W
100 hp(M) 73549.9 W
250 hp(M) 183875 W
500 hp(M) 367749 W
1000 hp(M) 735499 W
2500 hp(M) 1838750 W
5000 hp(M) 3677490 W
10000 hp(M) 7354990 W
25000 hp(M) 1.83875 × 107 W
50000 hp(M) 3.67749 × 107 W
100000 hp(M) 7.35499 × 107 W

Watts to Horsepower (metric) Table
0.1 to 500

Watts Horsepower (metric) Actions
0.1 W 0.000135962 hp(M)
14 W 0.000339905 hp(M)
12 W 0.000679811 hp(M)
1 W 0.00135962 hp(M)
2 12 W 0.00339905 hp(M)
5 W 0.00679811 hp(M)
10 W 0.0135962 hp(M)
25 W 0.0339905 hp(M)
50 W 0.0679811 hp(M)
100 W 0.135962 hp(M)
250 W 0.339905 hp(M)
500 W 0.679811 hp(M)

Watts to Horsepower (metric) Table
1000 to 1 × 108

Watts Horsepower (metric) Actions
1000 W 1.35962 hp(M)
2500 W 3.39905 hp(M)
5000 W 6.79811 hp(M)
10000 W 13.5962 hp(M)
25000 W 33.9905 hp(M)
50000 W 67.9811 hp(M)
100000 W 135.962 hp(M)
250000 W 339.905 hp(M)
500000 W 679.811 hp(M)
1000000 W 1359.62 hp(M)
2500000 W 3399.05 hp(M)
5000000 W 6798.11 hp(M)
10000000 W 13596.2 hp(M)
2.5 × 107 W 33990.5 hp(M)
5 × 107 W 67981.1 hp(M)
1 × 108 W 135962 hp(M)

Definition of Horsepower (metric)

Definition
Metric horsepower based on lifting 75 kgf one meter per second.
Exact factor
1 hp (metric) = 735.49875 W
Sources
Wikipedia — Metric horsepower

Definition of Watt

Definition
SI base unit of power equal to one joule per second.
Exact relation
1 W = 1 J/s = 1 kg·m²·s⁻³
Sources
BIPM — SI Brochure

About the Horsepower

Facts & Uses

  • Traditional power unit used in automotive engines, pumps, and motors.
  • Varies slightly by region (mechanical, metric, boiler, water, electric).
  • 1 hp ≈ 0.746 kW — equivalent to the work of lifting 550 pounds one foot per second.

Curiosities

  • Coined by James Watt to market early steam engines.
  • Still used for marketing despite SI replacement by kilowatts.

About the Watt

Facts & Uses

  • Named after James Watt, inventor of the improved steam engine.
  • Core SI unit for power — rate of energy transfer per second.
  • Used universally in physics, electronics, and engineering.

Curiosities

  • A human at rest emits about 100 W of heat.
  • Modern LED lamps use 5–15 W with similar brightness to 60–100 W incandescent bulbs.

Frequently Asked Questions

How many watts are in one horsepower (metric)?

One horsepower (metric) equals 735.499 watts. To convert, multiply the horsepower (metric) value by 735.499. For the reverse, divide the watt value by 735.499 (or multiply by 0.00135962).

What is 0.16 horsepower (metric) in watts?

0.16 horsepower (metric) = 117.68 watts. This is one of the most commonly searched conversions for this pair.

How precise is the horsepower (metric)-to-watt conversion?

The factor 735.499 is accurate to 6 significant figures, derived from international measurement standards. Our calculator uses full precision internally.

Looking for the reverse? Convert Watt to Horsepower (metric)

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Conversion factors verified against NIST, BIPM, ISO 80000-4 Based on SI base units (W = J/s, BIPM). Last reviewed: April 2026
Adilson Fernandes By Adilson Fernandes
Tiago Fernandes Reviewed by Tiago Fernandes

All unit conversions on CoolConversion use conversion factors defined or documented by internationally recognised standards bodies (such as ISO and NIST), including both SI and non-SI units.

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