Miles per Hour to Feet per Second

Convert mph to ft/s instantly — with a table, common speeds, and a live calculator.

1 mph equals 1.47 ft/s.

Updated Open the Unit Converter →

Convert any speed

Result (ft/s)1.47 ft/s

mph to ft/s table

mphft/s
1 mph1.47 ft/s
2 mph2.93 ft/s
3 mph4.4 ft/s
5 mph7.33 ft/s
10 mph14.67 ft/s
15 mph22 ft/s
20 mph29.33 ft/s
25 mph36.67 ft/s
30 mph44 ft/s
40 mph58.67 ft/s
50 mph73.33 ft/s
55 mph80.67 ft/s
60 mph88 ft/s
65 mph95.33 ft/s
70 mph102.67 ft/s
80 mph117.33 ft/s
90 mph132 ft/s
100 mph146.67 ft/s
120 mph176 ft/s
150 mph220 ft/s
200 mph293.33 ft/s
300 mph440 ft/s

ft/s to mph (reverse)

ft/smph
1 ft/s0.682 mph
2 ft/s1.36 mph
3 ft/s2.05 mph
5 ft/s3.41 mph
10 ft/s6.82 mph
15 ft/s10.23 mph
20 ft/s13.64 mph
25 ft/s17.05 mph
30 ft/s20.45 mph
40 ft/s27.27 mph
50 ft/s34.09 mph
55 ft/s37.5 mph
60 ft/s40.91 mph
65 ft/s44.32 mph
70 ft/s47.73 mph
80 ft/s54.55 mph
90 ft/s61.36 mph
100 ft/s68.18 mph
120 ft/s81.82 mph
150 ft/s102.27 mph
200 ft/s136.36 mph
300 ft/s204.55 mph

Common speeds

mphft/s
5 mph7.33 ft/s
10 mph14.67 ft/s
20 mph29.33 ft/s
30 mph44 ft/s
40 mph58.67 ft/s
50 mph73.33 ft/s
60 mph88 ft/s
70 mph102.67 ft/s
80 mph117.33 ft/s
100 mph146.67 ft/s
120 mph176 ft/s
200 mph293.33 ft/s

How it scales

37731101470255075100mph

100 km/h in other units

62.1mph27.8m/s54kn91.1ft/s

The ratio at a glance

1 mph1.47 ft/s

Metric, imperial, and nautical speed units

Kilometers per hour and meters per second are metric, miles per hour and feet per second belong to the imperial/US system, and knots (one nautical mile per hour) come from maritime and aviation use. One mile per hour is defined as exactly 0.44704 meters per second, and one knot as exactly 1.852 km/h.

Speed conversions are exact and rest on fixed factors — for more unit pairs, use our speed conversion hub.

Related conversions

Where speed conversions are used

Speed conversions are part of driving abroad, aviation and sailing, and sport — moving between km/h, mph, knots, and metres per second.

  • One knot is one nautical mile per hour, equal to about 1.852 km/h.
  • A quick mental trick: mph ≈ km/h × 0.62, and km/h ≈ mph × 1.61.
  • The speed of sound at sea level is about 1,235 km/h (Mach 1); the speed of light is roughly 1.08 billion km/h.

Frequently asked questions

How many ft/s are in 1 mph?

1 mph equals 1.47 ft/s.

How many ft/s are in 2 mph?

2 mph equal 2.93 ft/s.

How do I convert mph to ft/s?

Multiply the speed in mph by 1.47 to get ft/s.

Is the mph-to-ft/s conversion exact?

Yes. Speed conversions are exact; the values here are only rounded to two decimal places.

Why are there so many speed units?

Kilometers per hour and meters per second are metric, miles per hour and feet per second belong to the imperial/US system, and knots come from maritime and aviation use. All conversions rest on fixed factors.

Convert any unit

The unit converter handles length, volume, weight, and more.

Open Unit Converter →