Convert Watt-hours to BTU

Converting Watt-hours (Wh) to BTU (BTU) is a common task in energy measurements. Energy conversions connect food nutrition labels (calories), electricity bills (kWh), and scientific measurements in joules or BTU.

To convert, multiply the watt-hours value by 3.41213. Written as an equation: BTU = Wh × 3.41213.

One watt-hours equals approximately 3.412128 BTU. This means you can multiply any Wh value by 3.412128 to get the equivalent in BTU.

Worked example: 1 Wh = 3.412128 BTU. Enter your own value in the converter above for instant results.

Common mistake: Food calories on nutrition labels are actually kilocalories (kcal), which confuses many people when comparing to joules or watt-hours.

Bookmark this page for quick Wh to BTU conversions, or use the swap button to reverse the direction and convert BTU back to Wh.