Feet per second.
ft/s to Nautical mile per Days Converter — ft/s to nmi/d
Convert ft/s (ft/s) to Nautical mile per Days (nmi/d) using the exact conversion factor (1 ft/s = 14.21961123 nautical mile per days). See the formula, worked examples, and conversion table.
ft/s to Nautical mile per Days 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 / 0.02143518519.
Speed uses meters per second as the base unit.
Reserved above the conversion cards and below the converter.
About Converting ft/s to Nautical mile per Days
ft/s and Nautical mile per Days 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
nautical mile per days = ft/s × 14.2196112311
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 nautical mile per days equals 0.0214351851852 base units, so dividing one by the other gives the direct ft/s-to-nautical mile per days factor of 14.2196112311.
Simple example
1 ft/s × 14.21961123 = 14.21961123 nmi/d
1 ft/s = 14.21961123 nautical mile per days.
Real-world example
10 ft/s × 14.21961123 = 142.1961123 nmi/d
10 ft/s = 142.1961123 nautical mile per days.
Conversion table
| ft/s (ft/s) | Nautical mile per Days (nmi/d) |
|---|---|
| 1 ft/s | 14.21961123 nmi/d |
| 5 ft/s | 71.09805616 nmi/d |
| 10 ft/s | 142.1961123 nmi/d |
| 25 ft/s | 355.4902808 nmi/d |
| 50 ft/s | 710.9805616 nmi/d |
| 100 ft/s | 1,421.961123 nmi/d |
Reverse conversion: Nautical mile per Days to ft/s
14.21961123 nmi/d × 0.07032541071 = 0.9999999999 ft/s
14.21961123 nautical mile per days = 0.9999999999 ft/s.
ft/s = nautical mile per days × 0.0703254107125
For a page dedicated to this direction, see Nautical mile per Days to ft/s.
Understanding the ft/s (ft/s)
Feet per second.
Understanding the Nautical mile per Days (nmi/d)
Distance divided by time.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many nautical mile per days are in 1 ft/s?
1 ft/s equals 14.21961123 nautical mile per days, using the exact defined conversion factor rather than an estimate.
How do I convert ft/s to nautical mile per days?
Multiply the ft/s value by 14.21961123. The converter above does this instantly to whatever precision you set.
How do I convert nautical mile per days back to ft/s?
Use the reverse factor: 1 nautical mile per days equals 0.0703254107 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 nautical mile per days?
Nautical mile per Days (nmi/d) is a unit of speed.
Is the ft/s to nautical mile per days conversion exact?
Yes. Both ft/s and nautical mile per days are defined by fixed standards rather than physical artifacts, so the factor of 14.21961123 used above is exact to as many digits as you choose to display.