Convert Miles per Hour to Feet per Second — Instantly
Convert miles per hour to feet per second (ft/s) instantly using the formula ft/s = mph × 1.4666667. Includes a calculator, conversion table, worked examples, and FAQs.
Miles per hour to feet per second converter
Quick Reference
Miles per Hour to Feet per Second Conversion Table
Common mph to ft/s conversions at a glance, using the exact relationship 1 mph = 22/15 ft/s.
| Miles per Hour (mph) | Calculation | Feet per Second (ft/s) |
|---|---|---|
| 1 mph | 1 × 1.4666667 | 1.466667 ft/s |
| 5 mph | 5 × 1.4666667 | 7.333333 ft/s |
| 10 mph | 10 × 1.4666667 | 14.666667 ft/s |
| 20 mph | 20 × 1.4666667 | 29.333333 ft/s |
| 30 mph | 30 × 1.4666667 | 44 ft/s |
| 40 mph | 40 × 1.4666667 | 58.666667 ft/s |
| 50 mph | 50 × 1.4666667 | 73.333333 ft/s |
| 60 mph | 60 × 1.4666667 | 88 ft/s |
| 70 mph | 70 × 1.4666667 | 102.666667 ft/s |
| 80 mph | 80 × 1.4666667 | 117.333333 ft/s |
| 100 mph | 100 × 1.4666667 | 146.666667 ft/s |
| 120 mph | 120 × 1.4666667 | 176 ft/s |
Step-by-Step
How to Convert Miles per Hour to Feet per Second
Converting mph to ft/s is simple when you multiply the speed by 1.4666667.
The Formula
Miles per hour and feet per second are both standard units of speed used in transport, physics, engineering, athletics, and motion analysis. The exact relationship is 1 mph = 22/15 ft/s.
To convert feet per second back to miles per hour, divide by 1.4666667.
How to Turn mph into ft/s — Step by Step
Write down the speed value
Identify the number of miles per hour you want to convert — for example, 60 mph.
Multiply by 1.4666667
60 mph × 1.4666667 = 88 ft/s. This gives you the equivalent speed in feet per second.
Label your answer
Always write the unit (ft/s) after the number so the result is clear and unambiguous.
mph vs ft/s
What Is the Difference Between Miles per Hour and Feet per Second?
Miles per hour and feet per second are both units of speed. Miles per hour are commonly used for road speeds and transportation, while feet per second are often used in physics, engineering, ballistics, and motion studies.
The relationship used on this page is: 1 mph = 22/15 ft/s. To convert miles per hour to feet per second, multiply the number of mph by 1.4666667.
For example, 30 mph = 44 ft/s, 60 mph = 88 ft/s, and 100 mph = 146.666667 ft/s.
This conversion is exact and is commonly used in vehicle speed analysis, athletics, engineering, physics, and technical documents.
Worked Examples
Sample mph to ft/s Calculations
Here is how to calculate miles per hour to feet per second for commonly searched values.
10 mph to ft/s
10 × 1.4666667 = 14.666667 ft/s. Ten miles per hour equals about 14.67 feet per second.
20 mph to ft/s
20 × 1.4666667 = 29.333333 ft/s. Twenty miles per hour equals about 29.33 feet per second.
30 mph to ft/s
30 × 1.4666667 = 44 ft/s. Thirty miles per hour equals exactly forty-four feet per second.
40 mph to ft/s
40 × 1.4666667 = 58.666667 ft/s. Forty miles per hour equals about 58.67 feet per second.
50 mph to ft/s
50 × 1.4666667 = 73.333333 ft/s. Fifty miles per hour equals about 73.33 feet per second.
60 mph to ft/s
60 × 1.4666667 = 88 ft/s. Sixty miles per hour equals exactly eighty-eight feet per second.
70 mph to ft/s
70 × 1.4666667 = 102.666667 ft/s. Seventy miles per hour equals about 102.67 feet per second.
100 mph to ft/s
100 × 1.4666667 = 146.666667 ft/s. One hundred miles per hour equals about 146.67 feet per second.
FAQ
Frequently Asked Questions
Everything you need to know about converting miles per hour to feet per second.