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Power and Energy

BTUtoWh

Convert International Table BTUs (BTU) to watt-hours (Wh).

Factor1 BTU = 0.2930711 Wh

Converter

BTU

Accepts numbers or expressions, e.g. 150 + 14.7

Result
293.071Wh

Rendered to 6 significant figures.

Formula

Formula
Wh = BTU × 0.2930711

Multiply any value in International Table BTUs by 0.2930711 to obtain the value in watt-hours.

Worked example

Convert 1000 BTU to Wh.

  1. 01Start with 1000 BTU.
  2. 02Multiply by the conversion factor: 1000 × 0.2930711 = 293.071 Wh.
Result1000 BTU = 293.071 Wh

Conversion table

BTUWh
10.29307
20.58614
51.4654
102.9307
205.8614
5014.654
10029.307
20058.614
500146.54
1000293.07

Reference values rounded to 5 significant figures for display.

FAQ

What is the conversion factor from BTU to Wh?
1 BTU equals 0.2930711 Wh. To convert, multiply the value in International Table BTUs by 0.2930711.
How do I convert 1 BTU to Wh?
1 BTU = 0.293071 Wh. For any value, multiply by 0.2930711.
How do I convert Wh back to BTU?
Divide by the same factor — or equivalently, multiply by 3.412142. So 1 Wh = 3.41214 BTU.
When would I need to convert International Table BTU to watt-hour?
Energy conversions are needed when reconciling fuel/electrical billing, calculating thermal duties, and aligning calorimetry or HHV/LHV figures across data sources.
Is the conversion exact?
The factor shown is precise to at least 7 significant figures. For most process-engineering work this is far better than instrument accuracy. For metrology or trade applications, refer to the relevant national standard (NIST, BIPM, ISO 80000).

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