Convert watt hour to terawatt hour

You are currently converting energy units from watt hour to terawatt hour

Starting unit
Destination unit
1.0⋅10-12 TWh
~=  1 Wh
Conversion base: 1 Wh = 1.0E-12 TWh
1 TWh = 1000000000000 Wh

Watts, watt-hours and watts per hour

The watt (W) is a unit of power, the rate at which energy is used or produced. The watt-hour (Wh) is a unit of energy, one watt sustained for one hour, and is what this page converts: a 2 kW heater running for 3 hours uses 6 kWh, and an electricity bill counts kWh. 'Watts per hour' (W/h) would be a rate of change of power, is rarely needed, and is not the same thing as a watt-hour.
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