704 Watts to Milliwatts

704 W = 704000 mW

Calculation: mW = 704 W × 1000 = 704000 mW

Watt to Milliwatt Converter

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How much power is 704 W?

704 W is comparable to a space heater.

What does 704 W look like?

Comparable to a space heater
704 W is comparable to a space heater.

Did you know? One horsepower is 746 W.

1 HP = 745.7 W exactly. James Watt defined it as the power of a draft horse lifting 33,000 lb-ft per minute.

How to Convert Watt to Milliwatt

1 watt = 1000 milliwatts

Milliwatt = Watt × 1000

Example: 704 W × 1000 = 704000 mW

Reverse Conversion

To convert milliwatts back to watts:

  • Remember, 1 milliwatt equals 0.001 watts.
  • To convert 704000 mW to W, multiply 704000 x 0.001, resulting in 704 W.

704 W is also equal to:

  • 0.704 kilowatt
  • 0.000704 megawatt
  • 0.9437 horsepower (electric)
About these units

Watt: SI base unit of power equal to one joule per second.

Milliwatt: SI multiple equal to one thousandth of a watt.

Frequently Asked Questions

How much is 704 watts in milliwatts?

704 watts equals 704000 milliwatts. This is calculated by multiplying 704 by the conversion factor 1000.

What does 704 watts look like in milliwatts?

704 watts (704000 milliwatts) is a large appliance — a microwave, a hair dryer, or a space heater (US max 1,500 W on a 15 A circuit).

How do you calculate 704 watts to milliwatts?

Multiply 704 by the conversion factor 1000. The calculation is 704 × 1000 = 704000 milliwatts. This factor is defined by international measurement standards.

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704 watts = 704000 milliwatts
704 watts = 704000 milliwatts — conversion chart

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For general conversions between watts and milliwatts, see the watts to milliwatts converter.

Also convert Watts to:

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.