Feet per Second to Miles per Hour converter (ft/s to mph)
Convert Feet per Second (ft/s) to Miles per Hour (mph) with this free calculator. Type a value, press Convert, and the page applies the same factor shown in the formula below — no rounded shortcut, and nothing is stored on a server.
Miles per Hour to Feet per Second (mph to ft/s) ►
How to convert Feet per Second to Miles per Hour
1 foot per second (ft/s) is equal to 0.681818 miles per hour (mph).
mph = fts × 0.681818
Multiply the speed in ft/s by 0.681818:
Example: Convert 88 ft/s to mph:
mph = 88 × 0.681818 = 60 mph
What is a Feet per Second?
The Feet per Second (ft/s) is the starting or target unit on this page. Use the calculator above to convert values without looking up the factor by hand.
What is a Miles per Hour?
The Miles per Hour (mph) is the starting or target unit on this page. Use the calculator above to convert values without looking up the factor by hand.
This page converts speed from Feet per Second into Miles per Hour. One ft/s equals 0.681818 mph.
Feet per Second to Miles per Hour conversion table
Common ft/s values and the matching mph result, calculated with the same factor as the widget. Highlight a nearby row if you want a quick check without entering a number.
| Feet per Second (ft/s) | Miles per Hour (mph) |
|---|---|
| 5 ft/s | 3.40909 mph |
| 10 ft/s | 6.81818 mph |
| 20 ft/s | 13.63636 mph |
| 30 ft/s | 20.45454 mph |
| 50 ft/s | 34.0909 mph |
| 88 ft/s | 59.999984 mph |
| 100 ft/s | 68.1818 mph |
How this calculator works
The form on this page is a Feet per Second-to-Miles per Hour converter. After you enter a number, JavaScript multiplies or rearranges it with the published conversion factor and writes the mph result in the output box. The step-by-step panel repeats the arithmetic so you can copy it into homework or a spreadsheet.
Reviewed by Hamsen, founder of GigaTables and a biology engineer. See the about page for how formulas are checked before a tool is published.
FAQ
How many mph are in 1 ft/s?
1 ft/s = 0.681818 mph.
How do I convert Feet per Second to Miles per Hour?
Multiply the speed in ft/s by 0.681818:
Is this ft/s to mph converter free?
Yes. GigaTables calculators are free to use in a browser. You do not need an account, and the values you type are not uploaded.