Btu to Kwh Converter
Convert BTU to kilowatt hours easily. Free BTU to kWh converter for energy calculations.
Formula
kWh = BTU × 0.000293071
Common Conversions
How to Convert BTU to kWh
1 BTU = 0.000293 kWh. Divide BTU by 3,412 to get kWh. So 12,000 BTU ÷ 3,412 = 3.52 kWh. Used for converting equipment specs (HVAC, boilers, generators) from imperial BTU to metric kWh.
A 12,000 BTU AC unit = 3.5 kW. A 24,000 BTU central AC = 7 kW. Equipment specifications often appear in BTU; energy bills in kWh. Converting helps you understand annual energy consumption and compare equipment.
Common BTU to kWh
| BTU | kWh |
|---|---|
| 1,000 | 0.293 |
| 5,000 | 1.466 |
| 12,000 (typical AC) | 3.52 |
| 18,000 | 5.28 |
| 24,000 (small central) | 7.04 |
| 36,000 (medium central) | 10.55 |
| 60,000 (large central) | 17.59 |
| 100,000 | 29.31 |
Frequently Asked Questions
How much does a 12k BTU AC cost to run?
12,000 BTU = 3.5 kW, but actual electricity drawn depends on efficiency. A unit with EER 12 (Energy Efficiency Ratio) draws 1 kW per 12,000 BTU/hr, so cooling 1 hour costs 1 kWh × electricity rate. At 30 cents/kWh: 30 cents per hour of cooling. 8-hour day = £2.40.
What's SEER vs BTU?
BTU = cooling capacity (energy moved). SEER (Seasonal Energy Efficiency Ratio) = cooling efficiency (output BTU per input watts averaged over a season). Higher SEER = more efficient. Modern AC: SEER 15-25; older units: SEER 8-13.
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