Feet per second.
ft/s to Mile per Seconds Converter — ft/s to mi/s
Convert ft/s (ft/s) to Mile per Seconds (mi/s) using the exact conversion factor (1 ft/s = 0.0001893939 mile per seconds). See the formula, worked examples, and conversion table.
ft/s to Mile per Seconds converter
Converter
Speed Converter
Convert road, aviation, marine, lab, and scientific speed units.
Context values
Some unit families need one extra value for a physically accurate result.
Distance divided by time.
Result = input x 0.3048 / 1609.344.
Speed uses meters per second as the base unit.
Reserved above the conversion cards and below the converter.
About Converting ft/s to Mile per Seconds
ft/s and Mile per Seconds both describe speed, and the conversion matters whenever a maritime or aviation speed (knots) needs to be compared against a road speed (mph). Specifically: Feet per second, and distance divided by time.
Formula
mile per seconds = ft/s × 0.000189393939394
This factor comes from each unit's defined relationship to the category's base unit: 1 ft/s equals 0.3048 base units, and 1 mile per seconds equals 1609.344 base units, so dividing one by the other gives the direct ft/s-to-mile per seconds factor of 0.000189393939394.
Simple example
1 ft/s × 0.0001893939394 = 0.0001893939 mi/s
1 ft/s = 0.0001893939 mile per seconds.
Real-world example
10 ft/s × 0.0001893939394 = 0.0018939394 mi/s
10 ft/s = 0.0018939394 mile per seconds.
Conversion table
| ft/s (ft/s) | Mile per Seconds (mi/s) |
|---|---|
| 1 ft/s | 0.0001893939 mi/s |
| 5 ft/s | 0.0009469697 mi/s |
| 10 ft/s | 0.0018939394 mi/s |
| 25 ft/s | 0.0047348485 mi/s |
| 50 ft/s | 0.009469697 mi/s |
| 100 ft/s | 0.0189393939 mi/s |
Reverse conversion: Mile per Seconds to ft/s
0.0001893939 mi/s × 5280 = 0.999999792 ft/s
0.0001893939 mile per seconds = 0.999999792 ft/s.
ft/s = mile per seconds × 5280
For a page dedicated to this direction, see Mile per Seconds to ft/s.
Understanding the ft/s (ft/s)
Feet per second.
Understanding the Mile per Seconds (mi/s)
Distance divided by time.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many mile per seconds are in 1 ft/s?
1 ft/s equals 0.0001893939 mile per seconds, using the exact defined conversion factor rather than an estimate.
How do I convert ft/s to mile per seconds?
Multiply the ft/s value by 0.0001893939394. The converter above does this instantly to whatever precision you set.
How do I convert mile per seconds back to ft/s?
Use the reverse factor: 1 mile per seconds equals 5,280 ft/s. You can also use the swap control in the converter above to flip the direction instantly.
What is a ft/s?
ft/s (ft/s) is a unit of speed.
What is a mile per seconds?
Mile per Seconds (mi/s) is a unit of speed.
Is the ft/s to mile per seconds conversion exact?
Yes. Both ft/s and mile per seconds are defined by fixed standards rather than physical artifacts, so the factor of 0.0001893939394 used above is exact to as many digits as you choose to display.