Kwh to Btu Converter
Convert kilowatt hours to BTU instantly. Free kWh to BTU converter for energy conversion.
Formula
BTU = kWh × 3412.14
Common Conversions
How to Convert kWh to BTU
1 kWh = 3,412 BTU. Multiply kWh by 3,412 to get BTU (British Thermal Units). So 5 kWh × 3,412 = 17,060 BTU. The kilowatt-hour and BTU both measure energy; kWh is the SI standard, BTU is the imperial unit common in HVAC and US heating contexts.
Used in heating/cooling: AC capacity often quoted in BTU/hr (e.g. '12,000 BTU air conditioner') = 3.5 kW. Boiler heating output in BTU vs kW. UK gas bills now use kWh; some equipment specs use BTU. A 2-kW electric heater = 6,824 BTU/hr. A 3.5-kW (12,000 BTU) AC unit cools a typical 30 sq m room.
Common kWh to BTU
| kWh | BTU |
|---|---|
| 1 kWh | 3,412 |
| 2 kWh | 6,824 |
| 3.5 kWh | 11,942 |
| 5 kWh | 17,060 |
| 10 kWh | 34,120 |
| 100 kWh | 341,200 |
| 1000 kWh (1 MWh) | 3,412,000 |
| 1 BTU | 0.000293 kWh |
Frequently Asked Questions
What's a typical AC unit BTU?
Window AC: 5,000-14,000 BTU (1.5-4 kW). Mini-split: 9,000-36,000 BTU (2.6-10.5 kW). Central AC: 24,000-60,000 BTU (7-17.5 kW). Match BTU to room size: roughly 20 BTU per sq foot of space (or 600 BTU per sq metre) for cooling.
Is BTU heating or cooling?
Both - measures heat energy in either direction. AC units pump heat OUT (cooling); heaters/boilers add heat IN (warming). Same BTU rating describes the absolute amount of energy moved/added.
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