Miles Per Hour to Inches Per Second (mph to in/s)
1 mile per hour equals 17.6 inches per second exactly.
How to convert miles per hour to inches per second
To convert miles per hour to inches per second, multiply the number of miles per hour by 17.6. This factor is exact. To go the other way, multiply inches per second by 0.05681818182 (rounded).
inches per second = miles per hour × 17.6
Example: 10 miles per hour = 176 inches per second.
About these units
Mile Per Hour (mph)
Exactly 0.44704 m/s. The unit for road speeds in the US, UK and a few other countries.
Early British motoring law is the best window into this unit. The 1861 Locomotive Act set a limit of 10 mph for light locomotives. The 1865 Red Flag Act cut it to 4 mph in the country and 2 mph in towns, with a person walking ahead with a flag. The Locomotives on Highways Act of 1896 raised it to 14 mph, and the Motor Car Act of 1903 to 20 mph. In 1931 all limits for cars were abolished, and 30 mph in built-up areas returned in 1935.
The mile per hour combines the mile, set at 5,280 feet in Elizabeth I's reign, with the hour, and it equals exactly 0.44704 m/s or 1.609344 km/h. The United Kingdom and United States use it on roads, along with several smaller countries, mostly territories or former territories of those two, and the US, Canada and Ireland use it for rail. Sports such as cricket, tennis and baseball quote ball speeds in it. Aviation and shipping prefer knots, about 0.869 of one mph each.
1 mile per hour = 0.44704 meters per second (exactly).
Sources: Wikipedia: Miles per hour; Wikipedia: Speed limits in the United Kingdom; Wikipedia: Mile
Inch Per Second (in/s)
Exactly 0.0254 m/s. Used for tape speeds.
Tape recording standardized on inch per second, often written ips. The Compact Cassette, introduced by Philips in August 1963, runs at 1 7/8 ips, which is 4.7625 cm/s, since 1.875 times 2.54 gives that figure. Open-reel machines used a ladder of speeds, each double the one below: 3 3/4 ips (9.525 cm/s), 7 1/2 ips (19.05 cm/s), 15 ips (38.1 cm/s) and 30 ips (76.2 cm/s).
Some dictation machines ran at half the cassette speed, 15/16 ips, or about 2.38 cm/s. The unit rests on the international inch of exactly 25.4 mm, so one inch per second is exactly 0.0254 m/s, and NIST lists the conversion as exact. A cassette moves at about 0.0476 m/s, which is 0.171 km/h.
1 inch per second = 0.0254 meters per second (exactly).
Sources: Wikipedia: Compact Cassette; NIST SP 811 Appendix B.8: conversion factors; Wikipedia: Orders of magnitude (speed)
Related conversions
- Inches per second to miles per hour (reverse)
- Miles per hour to meters per second
- Miles per hour to kilometers per hour
- Miles per hour to knots
- Miles per hour to feet per second
- Miles per hour to Mach
- Miles per hour to speed of light
- Miles per hour to centimeters per second
- Miles per hour to millimeters per second
- Miles per hour to kilometers per second
- Miles per hour to kilometers per minute
- Miles per hour to meters per minute
- Miles per hour to feet per minute
- Meters per second to inches per second
- Kilometers per hour to inches per second
- Knots to inches per second
See all speed units.