Distance divided by time.
Foot per Days to ft/s Converter — ft/d to ft/s
Convert Foot per Days (ft/d) to ft/s (ft/s) using the exact conversion factor (1 foot per days = 0.0000115741 ft/s). See the formula, worked examples, and conversion table.
Foot 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 3.52777778e-6 / 0.3048.
Speed uses meters per second as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Foot per Days to ft/s
Foot 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 = foot per days × 0.0000115740740741
This factor comes from each unit's defined relationship to the category's base unit: 1 foot per days equals 0.00000352777777778 base units, and 1 ft/s equals 0.3048 base units, so dividing one by the other gives the direct foot per days-to-ft/s factor of 0.0000115740740741.
Simple example
1 ft/d × 0.00001157407407 = 0.0000115741 ft/s
1 foot per days = 0.0000115741 ft/s.
Real-world example
10 ft/d × 0.00001157407407 = 0.0001157407 ft/s
10 foot per days = 0.0001157407 ft/s.
Conversion table
| Foot per Days (ft/d) | ft/s (ft/s) |
|---|---|
| 1 ft/d | 0.0000115741 ft/s |
| 5 ft/d | 0.0000578704 ft/s |
| 10 ft/d | 0.0001157407 ft/s |
| 25 ft/d | 0.0002893519 ft/s |
| 50 ft/d | 0.0005787037 ft/s |
| 100 ft/d | 0.0011574074 ft/s |
Reverse conversion: ft/s to Foot per Days
0.0000115741 ft/s × 86400 = 1.00000224 ft/d
0.0000115741 ft/s = 1.00000224 foot per days.
foot per days = ft/s × 86400
For a page dedicated to this direction, see ft/s to Foot per Days.
Understanding the Foot per Days (ft/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 foot per days?
1 foot per days equals 0.0000115741 ft/s, using the exact defined conversion factor rather than an estimate.
How do I convert foot per days to ft/s?
Multiply the foot per days value by 0.00001157407407. The converter above does this instantly to whatever precision you set.
How do I convert ft/s back to foot per days?
Use the reverse factor: 1 ft/s equals 86,400 foot per days. You can also use the swap control in the converter above to flip the direction instantly.
What is a foot per days?
Foot per Days (ft/d) is a unit of speed.
What is a ft/s?
ft/s (ft/s) is a unit of speed.
Is the foot per days to ft/s conversion exact?
Yes. Both foot per days and ft/s are defined by fixed standards rather than physical artifacts, so the factor of 0.00001157407407 used above is exact to as many digits as you choose to display.