Feet per Second to Miles per Hour Converter
Enter the speed in feet per second below to convert it to miles per hour.
Convert Feet per Second to Miles per Hour
Enter a value in feet per second (ft/s) to convert to miles per hour (mph).
Feet per Second to Miles per Hour Conversion Table
Table showing various feet per second measurements converted to miles per hour. Click any preset value or arrow to load it into the converter.
| Feet per Second (ft/s) | Miles per Hour (mph) |
|---|---|
| 1 ft/s | 0.6818182 mph |
| 2 ft/s | 1.3636364 mph |
| 5 ft/s | 3.4090909 mph |
| 10 ft/s | 6.8181818 mph |
| 15 ft/s | 10.2272727 mph |
| 20 ft/s | 13.6363636 mph |
| 25 ft/s | 17.0454545 mph |
| 30 ft/s | 20.4545455 mph |
| 50 ft/s | 34.0909091 mph |
| 75 ft/s | 51.1363636 mph |
How to Convert Feet per Second to Miles per Hour
To convert feet per second to miles per hour, multiply the speed by the following conversion ratio: 0.6818182 miles per hour/feet per second.
Since one feet per second is equal to 0.6818182 miles per hour, you can use this simple formula to convert:
The speed in miles per hour is equal to the speed in feet per second multiplied by 0.6818182.
For example, here's how to convert 100 feet per second to miles per hour using the formula above.
How Many Miles per Hour Are in a Feet per Second?
There are 0.6818182 miles per hour in a feet per second, which is why we use this value in the formula above.
Our feet per second to miles per hour calculator automatically converts your speed measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.
Feet per Second and miles per hour are both units used to measure speed. Keep reading to learn more about each unit.
What Is a Feet per Second?
A feet per second is a unit of speed equal to 0.3048 meters per second (m/s), the base unit for speed. Equal to 0.3048 m/s. [1]
The feet per second is classified as a US customary and imperial unit of speed. Feet per Second can be abbreviated as ft/s; for example, 1 feet per second can be written as 1 ft/s.
When working with feet per second (ft/s) in formulas or technical specifications, always verify whether your target system uses SI metric, US customary, or British imperial standards.
In practice, feet per second (ft/s) are widely used across standard speed applications within US customary and imperial workflows, engineering documentation, and technical data sheets.
What Is a Miles per Hour?
A miles per hour is a unit of speed equal to 0.44704 meters per second (m/s), the base unit for speed. Imperial & US road speed unit (1 mph = 1.609344 km/h). [2]
The miles per hour is classified as a US customary and imperial unit of speed. Miles per Hour can be abbreviated as mph; for example, 1 miles per hour can be written as 1 mph.
When working with miles per hour (mph) in formulas or technical specifications, always verify whether your target system uses SI metric, US customary, or British imperial standards.
In practice, miles per hour (mph) are widely used across standard speed applications within US customary and imperial workflows, engineering documentation, and technical data sheets.
When converting speed between feet per second (ft/s) and miles per hour (mph), keep full floating-point precision (1 ft/s = 0.6818182 mph; 1 mph = 1.4666667 ft/s) during intermediate calculations and round only the final miles per hour figure to match your instrument tolerance.
More Feet per Second & Miles per Hour Conversions
Need to calculate in the opposite direction? Use our miles per hour to feet per second converter (mph to ft/s) to switch your starting unit immediately. You can also explore related tools such as converting kilometers per hour to miles per hour, converting knots to miles per hour, or converting miles per hour to kilometers per hour.
Convert from Feet per Second
Frequently Asked Questions
References
- [1]NIST SP 811 StandardNIST SP 811 (NIST SP 811 App. B.9 (Velocity))·Speed Metrology Standard — Feet per Second (ft/s) to Miles per Hour (mph)
- [2]NIST OWM SpecificationNIST OWM (SI Units — Length & Distance)·Unit Specifications: Feet per Second (ft/s) & Miles per Hour (mph)
- [3]NIST CUU ReferenceNIST CUU (SI Coherent Derived Units (m/s))·Conversion Factors & Mathematical Basis (ft/s to mph)