🚀 Speed Converter

Miles per Hour to Feet per Second
( mph → ft/s )

Instantly convert miles per hour to feet per second. Enter any value below and get an accurate result with the full formula and reference table.

Converter Tool
mph
ft/s
Result
1 mph ≈ 1.466666667 ft/s
1.466666667
ft/s
The Formula
ft/s = mph × 1.466666667
1 mile per hour = 5280 feet / 3600 seconds = 22/15 ≈ 1.466666667 ft/s. Therefore, ft/s = mph × 1.466666667.

How to Convert Miles per Hour to Feet per Second

To convert miles per hour to feet per second, multiply the number of miles per hour by 1.466666667. This is because 1 mile = 5280 feet and 1 hour = 3600 seconds.

Step-by-Step Example

Let’s convert 60 miles per hour to feet per second:

1. Multiply by 1.466666667: 60 × 1.466666667 = 88
2. So 60 mph equals 88 ft/s (exactly).

For a smaller amount, 30 mph × 1.466666667 = 44 ft/s.

When You’d Use Each Unit

Miles per hour are the standard unit for speed limits and vehicle speeds in the United States, the United Kingdom, and a few other countries. Feet per second are often used in engineering, ballistics, and some everyday applications in the US. Converting between them is useful for comparing vehicle speeds with imperial measurements or for technical calculations.

Conversion Table

Common miles per hour values converted to feet per second — typical values highlighted.

mph ft/s Approximate
Frequently Asked Questions
How do I convert mph to ft/s quickly? +
Multiply the number of mph by 1.46667. For example, 50 mph × 1.46667 ≈ 73.33 ft/s. This tool provides the precise value.
How many ft/s are in a mph? +
There are approximately 1.46666667 feet per second in one mile per hour (exactly 22/15).
What is 1 mph in ft/s? +
1 mph ≈ 1.46666667 ft/s.
What is 1 ft/s in mph? +
1 ft/s ≈ 0.681818 mph.
What is 55 mph in ft/s? +
55 mph = 80.6667 ft/s.
Can I convert ft/s back to mph with this tool? +
Yes! Just type a value into the ft/s field and the mph field updates automatically. Or use the ⇄ swap button to switch directions.
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