Miles per hour to feet per second formula

Definitions

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.

Table of Contents Show

Definitions
Miles per hour
Feet per second
How to convert miles per hour to feet per second
How to convert feet per second to miles per hour
Conversion table from [mph] to [fps]
Conversion table from [fps] to [mph]
What is 1 mile per hour equal to in feet per second?
What is the formula for converting miles to feet?
What is the formula for miles per second?
How do you convert mph to seconds?

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:

Unit	Symbol	[mph]
Inch per second	ips	\frac{3600}{63,360}=\frac{5}{88}
Inch per minute	ipm	\frac{60}{63,360}=\frac{1}{1056}
Inch per hour	iph	\frac{1}{63,360}
Feet per second	fps	\frac{3600}{5280}=\frac{15}{22}\approx 0.681818
Feet per minute	fpm	\frac{60}{5280}=\frac{1}{88}
Feet per hour	fph	\frac{1}{5280}
Miles per second	mps	3600
Miles per minute	mpm	60
Meters per second	m/s	\frac{3600}{1609.344}\approx 2.2369
Kilometers per hour	km/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:

Unit	Symbol	[fps]
Inch per second	ips	\frac{1}{12}
Inch per minute	ipm	\frac{1}{720}
Inch per hour	iph	\frac{1}{43,200}
Feet per minute	fpm	\frac{1}{60}
Feet per hour	fph	\frac{1}{3600}
Miles per second	mps	5280
Miles per minute	mpm	88
Miles per hour	mph	\frac{5280}{3600}=\frac{22}{15}\approx 1.46667
Meters per second	m/s	\frac{1}{0.3048}\approx 3.2808
Kilometers per hour	km/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

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]
1	1.467
2	2.933
5	7.333
10	14.67
15	22
20	29.33
25	36.67
30	44
35	51.33
40	58.67
45	66
50	73.33
55	80.67
60	88
65	95.33
70	102.7
80	117.3
90	132
100	146.7
120	176
200	293.3

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]
1	0.6818
5	3.409
10	6.818
20	13.64
30	20.45
40	27.27
50	34.09
60	40.91
70	47.73
80	54.55
90	61.36
100	68.18
110	75
120	81.82
130	88.64
140	95.45
150	102.3
160	109.1
180	122.7
200	136.4
300	204.5

What is 1 mile per hour equal to in feet per second?

Miles per hour to feet per second. 1 mile per hour is 1.46667 feet per second.

What is the formula for converting miles to feet?

To convert a mile measurement to a foot measurement, multiply the length by the conversion ratio. The length in feet is equal to the miles multiplied by 5,280.

What is the formula for miles per second?

Take your current speed in either kmph or mph. Divide it by 60 to get kilometers per minute or miles per minute. Divide by 60 again, getting kilometres per second or miles per second.