BTU to kWh – convert British thermal units to kilowatt-hours
Convert BTU to kWh to compare heaters, boilers, air conditioners and other heating/cooling systems with your electricity usage. This page opens the main energy converter with BTU → kWh pre-selected.
Open the interactive BTU → kWh converter:
Use main converter (BTU → kWh) or switch to kWh → BTUOn the homepage you can also convert to joules, megajoules, watt-hours and kilocalories using the same energy engine.
Quick reference: BTU to kWh
The converter uses the standard relationship 1 BTU ≈ 0.000293071 kWh. Rounded examples:
| BTU | kWh (approx.) |
|---|---|
| 1,000 BTU | 0.293 kWh |
| 5,000 BTU | 1.465 kWh |
| 10,000 BTU | 2.93 kWh |
| 15,000 BTU | 4.40 kWh |
| 20,000 BTU | 5.86 kWh |
| 30,000 BTU | 8.79 kWh |
Why convert BTU to kWh?
Typical reasons to convert BTU to kWh include:
- Comparing gas or oil heating output (BTU) with electric heating (kWh).
- Understanding air conditioner capacity ratings in terms of electricity use.
- Converting manufacturer specs into the same unit used on your energy bill.
- Doing engineering or academic calculations that need SI-based energy units.
More energy converters on this site
All energy conversions on the main page use joules as the internal base, so BTU, kWh, MJ and other units stay consistent with each other.
Page last updated: 2 December 2025.