Distance divided by time.
Mile per Days to ft/s Converter — mi/d to ft/s
Convert Mile per Days (mi/d) to ft/s (ft/s) using the exact conversion factor (1 mile per days = 0.0611111111 ft/s). See the formula, worked examples, and conversion table.
Mile per Days to ft/s 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.
Feet per second.
Result = input x 0.01862666667 / 0.3048.
Speed uses meters per second as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Mile per Days to ft/s
Mile per Days and ft/s both describe speed, and the conversion matters whenever a maritime or aviation speed (knots) needs to be compared against a road speed (mph). Specifically: Distance divided by time, and feet per second.
Formula
ft/s = mile per days × 0.0611111111111
This factor comes from each unit's defined relationship to the category's base unit: 1 mile per days equals 0.0186266666667 base units, and 1 ft/s equals 0.3048 base units, so dividing one by the other gives the direct mile per days-to-ft/s factor of 0.0611111111111.
Simple example
1 mi/d × 0.06111111111 = 0.0611111111 ft/s
1 mile per days = 0.0611111111 ft/s.
Real-world example
10 mi/d × 0.06111111111 = 0.6111111111 ft/s
10 mile per days = 0.6111111111 ft/s.
Conversion table
| Mile per Days (mi/d) | ft/s (ft/s) |
|---|---|
| 1 mi/d | 0.0611111111 ft/s |
| 5 mi/d | 0.3055555556 ft/s |
| 10 mi/d | 0.6111111111 ft/s |
| 25 mi/d | 1.527777778 ft/s |
| 50 mi/d | 3.055555556 ft/s |
| 100 mi/d | 6.111111111 ft/s |
Reverse conversion: ft/s to Mile per Days
0.0611111111 ft/s × 16.36363636 = 0.9999999998 mi/d
0.0611111111 ft/s = 0.9999999998 mile per days.
mile per days = ft/s × 16.3636363636
For a page dedicated to this direction, see ft/s to Mile per Days.
Understanding the Mile per Days (mi/d)
Distance divided by time.
Understanding the ft/s (ft/s)
Feet per second.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many ft/s are in 1 mile per days?
1 mile per days equals 0.0611111111 ft/s, using the exact defined conversion factor rather than an estimate.
How do I convert mile per days to ft/s?
Multiply the mile per days value by 0.06111111111. The converter above does this instantly to whatever precision you set.
How do I convert ft/s back to mile per days?
Use the reverse factor: 1 ft/s equals 16.36363636 mile per days. You can also use the swap control in the converter above to flip the direction instantly.
What is a mile per days?
Mile per Days (mi/d) is a unit of speed.
What is a ft/s?
ft/s (ft/s) is a unit of speed.
Is the mile per days to ft/s conversion exact?
Yes. Both mile per days and ft/s are defined by fixed standards rather than physical artifacts, so the factor of 0.06111111111 used above is exact to as many digits as you choose to display.