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Watt-hour [Wh] to Milliwatt-hour [mWh] Converter

Quick Reference

1 Watt-hour (Wh) = 1000 Milliwatt-hour (mWh)

1 Milliwatt-hour (mWh) = 0.001 Watt-hour (Wh)

How to Convert Watt-hour to Milliwatt-hour

1 Wh = 1000 mWh
1 mWh = 0.001 Wh

To convert Watt-hour to Milliwatt-hour, multiply the value by 1000. To convert Milliwatt-hour back to Watt-hour, divide by 1000.

Example: convert 10 Wh to mWh:
10 Wh = 10 x 1000 = 10000 mWh

↔ Convert Milliwatt-hour to Watt-hour

Watt-hour

Definition: A watt-hour (symbol Wh) is a unit of energy equal to one watt of power sustained for one hour. It is commonly used to measure electrical energy consumption.

History/origin: The watt-hour is derived from the watt, the SI unit of power, and the hour, a unit of time. It was developed alongside the increasing use of electricity in the late 19th and early 20th centuries.

Current use: Watt-hours are commonly used to measure the energy capacity of batteries, the energy consumption of household appliances, and the amount of electricity generated or consumed by power plants and consumers.

Milliwatt-hour

Definition: A milliwatt-hour (symbol mWh) is a unit of energy equal to one-thousandth of a watt-hour. It represents a very small amount of energy.

History/origin: The milliwatt-hour is a derivative of the watt-hour, using the SI prefix 'milli-' to denote a factor of one-thousandth.

Current use: Milliwatt-hours are used in applications involving low-power electronics, such as sensors, small batteries, and medical devices.

Watt-hour to Milliwatt-hour Conversion Table

Watt-hour [Wh]Milliwatt-hour [mWh]
1 Wh1000 mWh
2 Wh2000 mWh
5 Wh5000 mWh
10 Wh10000 mWh
20 Wh20000 mWh
50 Wh50000 mWh
100 Wh100000 mWh
200 Wh200000 mWh
500 Wh500000 mWh
1000 Wh1000000 mWh

Common Watt-hour to Milliwatt-hour conversions

  • 1 Wh = 1,000 mWh
  • 2 Wh = 2,000 mWh
  • 3 Wh = 3,000 mWh
  • 4 Wh = 4,000 mWh
  • 5 Wh = 5,000 mWh
  • 6 Wh = 6,000 mWh
  • 7 Wh = 7,000 mWh
  • 8 Wh = 8,000 mWh
  • 9 Wh = 9,000 mWh
  • 10 Wh = 10,000 mWh
  • 12 Wh = 12,000 mWh
  • 15 Wh = 15,000 mWh
  • 20 Wh = 20,000 mWh
  • 25 Wh = 25,000 mWh
  • 30 Wh = 30,000 mWh
  • 40 Wh = 40,000 mWh
  • 50 Wh = 50,000 mWh
  • 60 Wh = 60,000 mWh
  • 75 Wh = 75,000 mWh
  • 100 Wh = 100,000 mWh
  • 150 Wh = 150,000 mWh
  • 200 Wh = 200,000 mWh
  • 250 Wh = 250,000 mWh
  • 300 Wh = 300,000 mWh
  • 500 Wh = 500,000 mWh
  • 750 Wh = 750,000 mWh
  • 1,000 Wh = 1,000,000 mWh

Common pairs of Energy

Watt-hour [Wh] to Milliwatt-hour [mWh] Converter

What is 1 Wh in mWh?
1 Watt-hour (Wh) equals 1,000 mWh, and 1 mWh equals 0.001 Wh.
How do I convert Watt-hour to Milliwatt-hour?
Multiply by 1,000: 10 Wh × 1,000 = 10,000 mWh. The converter above does it for any value, with the precision you choose.
What is 100 Wh in mWh?
100 Wh = 100,000 mWh. Common amounts are listed on this page, each with its own step-by-step page.
Is a Watt-hour bigger than a Milliwatt-hour?
Yes. 1 Wh = 1,000 mWh, so the same quantity becomes a larger number when written in mWh.
Watt-hour to Milliwatt-hour Converter | UtilLab