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Milliwatts to Horsepower Converter

Convert milliwatts to horsepower and back instantly with formula and common values.

mW

Horsepower

0.0001

hp

42 mW = 0.0001 hp

hp = mW × 1.3410e-6

Milliwatts to Horsepower: 1 mW equals 1.34102e-6 hp. To convert milliwatts to horsepower, multiply by 1.34102e-6 (hp = mW × 1.3410e-6). For example, 10 mW = 1.34102e-5 hp.

How to Convert Milliwatts to Horsepower

To convert from milliwatts to horsepower, multiply the value by 1.34102e-6. The conversion is linear, meaning doubling the input doubles the output.

Conversion Formula

  • Milliwatts to Horsepower: hp = mW × 1.3410e-6
  • Horsepower to Milliwatts: mW = hp ÷ 1.3410e-6

Milliwatts to Horsepower Conversion Chart

Milliwatts (mW)Horsepower (hp)
0.11.34102e-7
0.253.35255e-7
0.56.70511e-7
11.34102e-6
22.68204e-6
34.02307e-6
56.70511e-6
101.34102e-5
202.68204e-5
253.35255e-5
506.70511e-5
1000.000134
2500.000335
10000.001341

Understanding the Units

What is a Milliwatt?

A milliwatt equals one thousandth of a watt (10⁻³ W).

Common contexts: radio transmitters, lasers, electronics.

What is a Horsepower?

One mechanical horsepower equals exactly 745.6998715822702 watts; one metric horsepower equals exactly 735.49875 watts.

Defined by James Watt to compare steam engines to draft horses pulling weights.

Common contexts: automotive, small engines.

Real-World Reference Points

Item Milliwatts (mW) Horsepower (hp)
Riding lawnmower13422599.586218
Compact sedan111854996.5515150
Sports car298279990.804400

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FAQ

How do I convert milliwatts to horsepower?

Multiply by 1.3410e-6. For example, 42 mW × 1.3410e-6 = 5.600e-5 hp.

What is the formula for milliwatts to horsepower?

The formula is: hp = mW × 1.3410e-6.

How many horsepower are in one milliwatt?

One milliwatt equals 1.000e-6 horsepower.

How many horsepower are in 1 milliwatt?

1 mW equals 1.34102e-6 hp.

How do you convert milliwatts to horsepower?

Multiply the milliwatt value by 1.34102e-6. Formula: hp = mW × 1.3410e-6.

How many horsepower are in 5 milliwatts?

5 mW = 6.70511e-6 hp.

How do you convert horsepower back to milliwatts?

Use the inverse formula: mW = hp ÷ 1.3410e-6. For example, 1 hp = 745699.97701 mW.

What is the difference between Milliwatt and Horsepower?

A milliwatt equals one thousandth of a watt (10⁻³ W). One mechanical horsepower equals exactly 745.6998715822702 watts; one metric horsepower equals exactly 735.49875 watts.