Watt-hours to therms Converter

Enter the watt-hours, then press Calculate. The therms stay hidden while you type.

Press Calculate after the entries are in.

What this energy conversion is for

Use this page when a measurement is written in watt-hours and the next step needs therms. The number stays blank until you press Calculate, so a half-typed entry is never mistaken for the answer.

The factor

Multiply by the factor: 1 watt-hour = 3.41296e-05 therms.

A worked example

10 watt-hours are 0.0003413 therms. Multiply the result by the reverse factor if you want the original number back.

How to check it

Write the factor down, do the multiply on paper, and compare it with the result card. If you change a sentence on this page, edit the HTML file and reload. The form and this note live in the same file.

The reverse conversion is therms to watt-hours. A nearby pair in the same units is kilowatt-hours to therms. When the converted number is the input to a job, continue with the electricity cost.