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Miles per hour to Feet per second Converter

1 mph = 1.46667 ft/s (mile per hour → foot per second)

1 mph = 1.46667 ft/s

1 mile per hour equals 1.46667 feet per second. To convert miles per hour to feet per second, multiply the mile per hour value by 1.46667. For quick reference: 1 mph = 1.46667 ft/s, 5 mph = 7.33333 ft/s, 10 mph = 14.6667 ft/s, 100 mph = 146.667 ft/s.

1.46667
FormulaFeet per second = Miles per hour × 1.46667
Quick

How to convert miles per hour to feet per second

  1. Take your value

    Start with your value in miles per hour.

  2. Multiply by 1.46667

    Multiply the mile per hour value by 1.46667. This is the exact conversion factor from miles per hour to feet per second.

  3. Read the result

    The product is your value in feet per second. For example, 5 mph × 1.46667 = 7.33333 ft/s.

Conversion formula

The exact factor from miles per hour to feet per second is 1.46667.

Feet per second = Miles per hour × 1.46667

Miles per hour to Feet per second conversion table

Fifty common reference values, hand-picked for skim utility. Use the calculator above for any value not listed.

Conversion table from miles per hour to feet per second
Miles per hour (mph)Feet per second (ft/s)
1 mph1.4667 ft/s
2 mph2.9333 ft/s
3 mph4.4 ft/s
4 mph5.8667 ft/s
5 mph7.3333 ft/s
6 mph8.8 ft/s
7 mph10.267 ft/s
8 mph11.733 ft/s
9 mph13.2 ft/s
10 mph14.667 ft/s
12 mph17.6 ft/s
15 mph22 ft/s
18 mph26.4 ft/s
20 mph29.333 ft/s
22 mph32.267 ft/s
25 mph36.667 ft/s
28 mph41.067 ft/s
30 mph44 ft/s
32 mph46.933 ft/s
35 mph51.333 ft/s
40 mph58.667 ft/s
45 mph66 ft/s
50 mph73.333 ft/s
55 mph80.667 ft/s
60 mph88 ft/s
65 mph95.333 ft/s
70 mph102.67 ft/s
75 mph110 ft/s
80 mph117.33 ft/s
85 mph124.67 ft/s
90 mph132 ft/s
95 mph139.33 ft/s
100 mph146.67 ft/s
110 mph161.33 ft/s
120 mph176 ft/s
130 mph190.67 ft/s
140 mph205.33 ft/s
150 mph220 ft/s
160 mph234.67 ft/s
180 mph264 ft/s
200 mph293.33 ft/s
220 mph322.67 ft/s
250 mph366.67 ft/s
280 mph410.67 ft/s
300 mph440 ft/s
350 mph513.33 ft/s
400 mph586.67 ft/s
500 mph733.33 ft/s
700 mph1026.7 ft/s
1000 mph1466.7 ft/s

Real-world reference

US Interstate speed limits are usually 65–75 mph. A 4-minute mile is exactly 15 mph. In feet per second, that gives you: 1 mph = 1.46667 ft/s, 10 mph = 14.6667 ft/s, 100 mph = 146.667 ft/s.

Frequently asked questions

How many feet per second are in 1 mile per hour?
1 mile per hour equals 1.46667 feet per second.
How do I convert miles per hour to feet per second?
Multiply the mile per hour value by 1.46667. So x mph × 1.46667 = the equivalent in ft/s.
What is 5 miles per hour in feet per second?
5 miles per hour equals 7.33333 feet per second.
What is 10 miles per hour in feet per second?
10 miles per hour equals 14.6667 feet per second.
What is 100 miles per hour in feet per second?
100 miles per hour equals 146.667 feet per second.
How do I convert back from feet per second to miles per hour?
Multiply the foot per second value by 0.681818. For example, 1 ft/s = 0.681818 mph.
Is the mile per hour bigger than the foot per second?
Yes. 1 mile per hour is larger than 1 foot per second — specifically 1.46667 times larger.
Are these conversion factors exact?
The underlying imperial/US unit definitions are exact; the displayed factor (1.46667) is rounded for readability, and the browser computes using IEEE 754 double-precision arithmetic.

About the mile per hour and the foot per second

The mile per hour

The mile per hour (mph) is the customary speed unit in the United States and the United Kingdom. The conversion 1 mph = 0.44704 m/s is exact, derived from 1 mile = 1609.344 m. A useful mental shortcut: multiply mph by 1.6 to get a close km/h estimate.

The foot per second

The foot per second (ft/s, fps) equals exactly 0.3048 m/s. It is common in US ballistics (muzzle velocity), engineering (fluid flow, elevator speed), and physics classrooms as an imperial alternative to mph.

Related converters

Feet per second to Miles per hour
ft/s → mph
Meters per second to Feet per second
m/s → ft/s
Feet per second to Kilometers per hour
ft/s → km/h
Kilometers per hour to Feet per second
km/h → ft/s
Meters per second to Kilometers per hour
m/s → km/h
Meters per second to Miles per hour
m/s → mph

Sources