Feet per Second to Miles per Hour (ft/s to mph) Converter
1 foot per second (ft/s) = 0.681818 miles per hour (mph). To convert feet per second to miles per hour, multiply by 0.681818: 25 ft/s × 0.681818 = 17.0455 mph.
Quick facts
- 1 ft/s = 0.681818 mph
- 1 mph = 1.46667 ft/s
- Formula: mph = ft/s × 0.681818
- Quick estimate: multiply by about 0.68
How to convert feet per second to miles per hour
- Take the value in feet per second.
- Multiply it by 0.681818 (the number of miles per hour in one foot per second).
- Round the result to the precision you need.
Worked example: 25 ft/s × 0.681818 = 17.0455 mph.
To convert miles per hour back to feet per second, multiply by 1.46667, or divide by 0.681818.
Source: NIST SP 811 (2008), derived from the metre, the international mile and the second.
Feet per Second to Miles per Hour conversion table
| Feet per Second [ft/s] | Miles per Hour [mph] |
|---|---|
| 0.01 ft/s | 0.0068181818 mph |
| 0.1 ft/s | 0.0681818182 mph |
| 1 ft/s | 0.6818181818 mph |
| 2 ft/s | 1.3636363636 mph |
| 3 ft/s | 2.0454545455 mph |
| 5 ft/s | 3.4090909091 mph |
| 10 ft/s | 6.8181818182 mph |
| 20 ft/s | 13.6363636364 mph |
| 50 ft/s | 34.0909090909 mph |
| 100 ft/s | 68.1818181818 mph |
| 1000 ft/s | 681.8181818182 mph |
ft/s to mph chart from 1 to 100
- 1 ft/s 0.681818 mph
- 2 ft/s 1.36364 mph
- 3 ft/s 2.04545 mph
- 4 ft/s 2.72727 mph
- 5 ft/s 3.40909 mph
- 6 ft/s 4.09091 mph
- 7 ft/s 4.77273 mph
- 8 ft/s 5.45455 mph
- 9 ft/s 6.13636 mph
- 10 ft/s 6.81818 mph
- 11 ft/s 7.5 mph
- 12 ft/s 8.18182 mph
- 13 ft/s 8.86364 mph
- 14 ft/s 9.54545 mph
- 15 ft/s 10.2273 mph
- 16 ft/s 10.9091 mph
- 17 ft/s 11.5909 mph
- 18 ft/s 12.2727 mph
- 19 ft/s 12.9545 mph
- 20 ft/s 13.6364 mph
- 25 ft/s 17.0455 mph
- 30 ft/s 20.4545 mph
- 35 ft/s 23.8636 mph
- 40 ft/s 27.2727 mph
- 45 ft/s 30.6818 mph
- 50 ft/s 34.0909 mph
- 55 ft/s 37.5 mph
- 60 ft/s 40.9091 mph
- 65 ft/s 44.3182 mph
- 70 ft/s 47.7273 mph
- 75 ft/s 51.1364 mph
- 80 ft/s 54.5455 mph
- 85 ft/s 57.9545 mph
- 90 ft/s 61.3636 mph
- 95 ft/s 64.7727 mph
- 100 ft/s 68.1818 mph
Miles per Hour to Feet per Second conversion table
| Miles per Hour [mph] | Feet per Second [ft/s] |
|---|---|
| 0.01 mph | 0.0146666667 ft/s |
| 0.1 mph | 0.1466666667 ft/s |
| 1 mph | 1.4666666667 ft/s |
| 2 mph | 2.9333333333 ft/s |
| 3 mph | 4.4 ft/s |
| 5 mph | 7.3333333333 ft/s |
| 10 mph | 14.6666666667 ft/s |
| 20 mph | 29.3333333333 ft/s |
| 50 mph | 73.3333333333 ft/s |
| 100 mph | 146.6666666667 ft/s |
| 1000 mph | 1466.6666666667 ft/s |
Feet per Second vs Miles per Hour
| Foot per Second | Mile per Hour | |
|---|---|---|
| Symbol | ft/s | mph |
| Equals | 1 ft/s = 0.681818 mph | 1 mph = 1.46667 ft/s |
What is a foot per second?
Distance in feet covered in one second. Used in US ballistics, engineering, and fluid flow.
What is a mile per hour?
Distance in miles covered in one hour. The standard speed unit for driving and wind speed in the US and UK.
Frequently asked questions
How many miles per hour are in a foot per second?
There are 0.681818 miles per hour in 1 foot per second (1 ft/s = 0.6818181818 mph).
How many feet per second are in a mile per hour?
There are 1.46667 feet per second in 1 mile per hour (1 mph = 1.4666666667 ft/s).
How do I convert feet per second to miles per hour?
Multiply the number of feet per second by 0.681818. For example, 10 ft/s × 0.681818 = 6.81818 mph. To convert back, multiply by 1.46667.
What is 10 ft/s in miles per hour?
10 ft/s = 6.81818 mph.
What is 100 ft/s in miles per hour?
100 ft/s = 68.1818 mph.
Is the conversion exact?
Yes. The factor comes from the official definitions of both units (NIST SP 811 (2008), derived from the metre, the international mile and the second). Results are shown to up to 10 decimal places; round them to suit your purpose.
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