About this tool

Foot per second to Mile per hour Converter

Convert feet per second to miles per hour instantly. Free, bidirectional, and fully in-browser.

1 foot per second equals 0.6818181818 miles per hour — enter any foot per second value to convert it to miles per hour instantly. This Foot per second to Mile per hour converter is a client-side tool: it applies a single multiplication (mph = ft/s × 0.6818181818) in your browser, updates the moment you type, and works in both directions — edit either field, or press swap, to convert miles per hour back to feet per second. A reference table lists common foot per second values already converted, and nothing you enter is sent to a server.

How to use Foot per second to Mile per hour Converter

1. 1

   Open Foot per second to Mile per hour Converter on AltFTool — it loads instantly in your browser.

2. 2

   Type the value you want to convert into the Foot per second field.

3. 3

   Read the equivalent in miles per hour 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 miles per hour to feet per second.

Why use Foot per second to Mile per hour Converter

• Instant, both ways

  The result updates as you type, and the swap button flips the conversion to mile per hour → foot per second without reloading.

• Exact Speed math

  The conversion uses the precise factor (mph = ft/s × 0.6818181818), 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 foot per second measurement to miles per hour for a spec, listing, or report.
• Checking foot per second↔mile per hour figures while comparing products, datasets, or documentation.
• Learning the foot per second-to-mile per hour relationship from the worked formula and the common-value table.

Frequently asked questions