About this tool

Therm to Foot-pound Converter

Convert therms to foot-pounds instantly. Free, bidirectional, and fully in-browser.

1 therm equals 77798350.53 foot-pounds — enter any therm value to convert it to foot-pounds instantly. This Therm to Foot-pound converter is a client-side tool: it applies a single multiplication (ft·lb = thm × 77798350.53) in your browser, updates the moment you type, and works in both directions — edit either field, or press swap, to convert foot-pounds back to therms. A reference table lists common therm values already converted, and nothing you enter is sent to a server.

How to use Therm to Foot-pound Converter

1. 1

   Open Therm to Foot-pound Converter on AltFTool — it loads instantly in your browser.

2. 2

   Type the value you want to convert into the Therm field.

3. 3

   Read the equivalent in foot-pounds in the result field, and copy it if needed.

4. 4

   Use the decimal-places slider for more or less precision, or press swap to convert foot-pounds to therms.

Why use Therm to Foot-pound Converter

• Instant, both ways

  The result updates as you type, and the swap button flips the conversion to foot-pound → therm without reloading.

• Exact Energy math

  The conversion uses the precise factor (ft·lb = thm × 77798350.53), so the number matches a manual calculation to the decimal places you choose.

• Adjustable precision

  A slider sets 0–10 decimal places, and very small or very large results switch to scientific notation instead of rounding to zero.

• Private and free

  Everything runs locally in your browser — no upload, no account, no limit on conversions.

Common use cases

• Converting a therm measurement to foot-pounds for a spec, listing, or report.
• Checking therm↔foot-pound figures while comparing products, datasets, or documentation.
• Learning the therm-to-foot-pound relationship from the worked formula and the common-value table.

Frequently asked questions