How do I convert BTU (IT) to Watt-hour (Wh)?

1 btu equals 0.293071 wh using SI-based conversion and precise factors.

What is the formula to convert BTU (IT) to Watt-hour (Wh)?

This is a linear unit conversion using a constant factor between units.

Yes, it uses exact definitions or standardized constants (e.g., 1 in = 25.4 mm).

Use the shareable URL pattern: /convert/btu-to-wh/1

Category: Energy

Value From To Precision

0.293071 wh

1 btu = 0.293071 wh

High-precision rounding: 6 decimals

We convert by pivoting through the SI base unit for Energy and applying exact factors where applicable.

Share this conversion: /convert/btu-to-wh/1

Energy is capacity to do work; joules, calories, Wh and BTU are common.

British thermal unit (BTU)

≈ 1,055.06 J (IT).

History: Steam age heat unit; HVAC standard.

Watt-hour (Wh)

Energy used by 1 W for 1 hour.

History: Common in batteries and electricity bills.