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Mph - ft/s Converter

- By Dr. Minas E. Lemonis, PhD - Updated: April 11, 2020

Enter the speed in either of the next two fields and get it converted instantly!

Miles per hour [mph]:
Feet per second [ft/s]:

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Definitions

Table of contents

Miles per hour

Mile per hour is a unit of speed defined in the Imperial and US customary systems of units. It measures the number of miles an object travels within an hour. International mile [mi] is a unit of length, equal to 5280 feet and precisely defined as 1609.344 meters. The symbol more commonly used on signs and labels is the abbreviation mph, however in science and engineering contexts, mi/h may be more convenient for unit arithmetic.

The relationships between the miles per hour and some other speed units, native to the Imperial/US customary and SI systems, are shown in the following table:

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UnitSymbol[mph]
Inch per secondips \frac{3600}{63,360}=\frac{5}{88}
Inch per minuteipm \frac{60}{63,360}=\frac{1}{1056}
Inch per houriph \frac{1}{63,360}
Feet per secondfps \frac{3600}{5280}=\frac{15}{22}\approx 0.681818
Feet per minutefpm \frac{60}{5280}=\frac{1}{88}
Feet per hourfph \frac{1}{5280}
Miles per secondmps 3600
Miles per minutempm 60
Meters per secondm/s \frac{3600}{1609.344}\approx 2.2369
Kilometers per hourkm/h \frac{1}{1.609344}\approx 0.62137

Feet per second

Foot per second is a unit of speed defined in the Imperial and US customary systems of units. It measures the number of feet an object travels within a second. Foot [ft] is a unit of length, precisely defined as equal to 0.3048 meters.

The relationships between the foot per second and some other speed units, native to the Imperial/US customary and SI systems, are shown in the following table:

UnitSymbol[fps]
Inch per secondips \frac{1}{12}
Inch per minuteipm \frac{1}{720}
Inch per houriph \frac{1}{43,200}
Feet per minutefpm \frac{1}{60}
Feet per hourfph \frac{1}{3600}
Miles per secondmps 5280
Miles per minutempm 88
Miles per hourmph \frac{5280}{3600}=\frac{22}{15}\approx 1.46667
Meters per secondm/s \frac{1}{0.3048}\approx 3.2808
Kilometers per hourkm/h \frac{1}{3.6\cdot 0.3048}\approx 0.91134

How to convert miles per hour to feet per second

  • Multiply speed in mph with 5280
  • Divide the result by 3600
  • The result is the speed in feet per second

For example 60 mph is: 60x5280/3600 = 88 fps

How to convert feet per second to miles per hour

  • Multiply speed in fps with 3600
  • Divide the result by 5280
  • The result is the speed in mph

For example 99 fps is: 99*3600/5280 = 67.5 mph

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Conversion table from [mph] to [fps]

In the following table some typical speeds in miles per hour are converted to feet per second:

[mph][fps]
11.467
22.933
57.333
1014.67
1522
2029.33
2536.67
3044
3551.33
4058.67
4566
5073.33
5580.67
6088
6595.33
70102.7
80117.3
90132
100146.7
120176
200293.3

Conversion table from [fps] to [mph]

In the following table some typical speeds in feet per second are converted to miles per hour:

[fps][mph]
10.6818
53.409
106.818
2013.64
3020.45
4027.27
5034.09
6040.91
7047.73
8054.55
9061.36
10068.18
11075
12081.82
13088.64
14095.45
150102.3
160109.1
180122.7
200136.4
300204.5

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See also
Mph-kmph converter
Speed converter
Miles-kilometres converter
Length converter
Newtons-Pound force converter
All quick Converters
All Unit Converters