1 ft/s to mph
1 ft/s ≈ 0.6818 mph
1 foot per second is approximately 0.6818 miles per hour.
How to convert 1 ft/s to mph
Use the formula mph = ft/s × 0.6818181818:
mph = 1 × 0.6818181818mph = 0.681818
So 1 ft/s = 0.681818 mph, or about 0.6818 mph rounded.
Rounded values and quick estimate
- Rounded to a whole number: 1 mph
- Rounded to one decimal place: 0.7 mph
- Conversion factor: 1 foot per second = 0.6818 miles per hour
Quick mental estimate: multiply by 2/3. For 1 ft/s that gives about 0.6667 mph — off by 0.0152 mph (2.2%). Use the exact formula when precision matters.
1 ft/s in other units
- Miles per hour
- 0.6818 mph
- Kilometers per hour
- 1.1 km/h
- Knots
- 0.5925 kn
- Meters per second
- 0.3048 m/s
1 ft/s and nearby values
| Feet per second | Miles per hour |
|---|---|
| 1 ft/s | 0.6818 mph |
| 2 ft/s | 1.36 mph |
| 3 ft/s | 2.05 mph |
| 4 ft/s | 2.73 mph |
| 5 ft/s | 3.41 mph |
About feet per second and miles per hour
Feet per second is a speed unit used in ballistics, engineering and sports. 1 ft/s ≈ 0.68 mph.
Miles per hour is the speed unit used on roads in the US and UK.
Related conversions
Frequently asked questions
What is 1 ft/s in mph?
1 foot per second is about 0.6818 miles per hour (1 ft/s ≈ 0.6818 mph).
How do you convert 1 ft/s to mph?
Apply mph = ft/s × 0.6818181818: mph = 1 × 0.6818181818, mph = 0.681818.
How many feet per second is 0.6818 mph?
0.6818 mph is about 1 feet per second.