Watt Hour Calculator

Calculate watt-hours, amp-hours, and convert between energy units.

Calculate

Wh = W x h | Wh = V x Ah

Power (Watts)

Time (Hours)

Voltage (V)

Energy Result

300.00

Watt Hours

0.300

Kilowatt Hours

Power & Time

Power60.00 W

Time5.00 hours

Amp Hours25.00 Ah

Milliwatt Hours300000 mWh

Energy Conversions

Joules1080000 J

Kilojoules1080.00 kJ

Calories258126 cal

BTU1023.60 BTU