How do I convert BTU to kWh?

Use the formula shown above or enter a value to see BTU converted to kWh instantly.

What is the formula for BTU to kWh?

The converter calculates kWh by applying the category-specific conversion factor for Energy.

When should I use BTU vs kWh?

BTU and kWh are both part of the Energy category; pick the unit that matches your measurement context (e.g., scale, region, or industry standard).

Energy Conversion Guide

Convert BTU to kWh

Use the live converter below to translate between British Thermal Unit (BTU) and Kilowatt Hour (kWh). Scroll further for quick examples, formula tips, and related units.

Formula insight: Most unit conversions use a simple multiplication or division by a conversion factor. The calculator shows the exact formula used.

Convert

BTU → kWh

British Thermal Unit

BTU

Kilowatt Hour

0.0003

kWh

Rounded result (4 decimals max)

Formula

1 BTU = 0.0003 kWh

Conversion sourcesTap or click to view references

The International System of Units (SI) — NIST Special Publication 330
National Institute of Standards and Technology (NIST). The SI Brochure (SP 330) is the definitive English edition of the BIPM SI tables. NIST’s edition lists the official constants and conversion factors tying inch-pound units to SI, which SwapUnits applies for length, mass, temperature, pressure, volume, and related conversions. See /standards/nist-si-tenfold for the complete decimal multiple/submultiple table. View source · View SI table

Results update as you type. Swap the direction to convert back from kWh to BTU.

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BTU to kWh quick table

Multiply any row by the same factor to scale results. Use the converter above to enter exact values with your own units.

British Thermal Unit (BTU)	Kilowatt Hour (kWh)
0.25 BTU	0.0001 kWh
0.5 BTU	0.0001 kWh
1 BTU	0.0003 kWh
2 BTU	0.0006 kWh
5 BTU	0.0015 kWh
10 BTU	0.0029 kWh
25 BTU	0.0073 kWh
100 BTU	0.0293 kWh

kWh back to BTU

Keep the reciprocal handy when double-checking calculations or undoing a conversion.

Kilowatt Hour (kWh)	British Thermal Unit (BTU)
0.25 kWh	853.0354 BTU
0.5 kWh	1,706.0708 BTU
1 kWh	3,412.1416 BTU
2 kWh	6,824.2833 BTU
5 kWh	17,060.7082 BTU
10 kWh	34,121.4163 BTU
25 kWh	85,303.5408 BTU
100 kWh	341,214.1633 BTU

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