Distance divided by time.
Foot per Hours to Nautical mile per Days Converter — ft/h to nmi/d
Convert Foot per Hours (ft/h) to Nautical mile per Days (nmi/d) using the exact conversion factor (1 foot per hours = 0.003949892 nautical mile per days). See the formula, worked examples, and conversion table.
Foot per Hours 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 8.46666667e-5 / 0.02143518519.
Speed uses meters per second as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Foot per Hours to Nautical mile per Days
Foot per Hours 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). Both are distance divided by time units.
Formula
nautical mile per days = foot per hours × 0.00394989200864
This factor comes from each unit's defined relationship to the category's base unit: 1 foot per hours equals 0.0000846666666667 base units, and 1 nautical mile per days equals 0.0214351851852 base units, so dividing one by the other gives the direct foot per hours-to-nautical mile per days factor of 0.00394989200864.
Simple example
1 ft/h × 0.003949892009 = 0.003949892 nmi/d
1 foot per hours = 0.003949892 nautical mile per days.
Real-world example
10 ft/h × 0.003949892009 = 0.0394989201 nmi/d
10 foot per hours = 0.0394989201 nautical mile per days.
Conversion table
| Foot per Hours (ft/h) | Nautical mile per Days (nmi/d) |
|---|---|
| 1 ft/h | 0.003949892 nmi/d |
| 5 ft/h | 0.01974946 nmi/d |
| 10 ft/h | 0.0394989201 nmi/d |
| 25 ft/h | 0.0987473002 nmi/d |
| 50 ft/h | 0.1974946004 nmi/d |
| 100 ft/h | 0.3949892009 nmi/d |
Reverse conversion: Nautical mile per Days to Foot per Hours
0.003949892 nmi/d × 253.1714786 = 0.9999999978 ft/h
0.003949892 nautical mile per days = 0.9999999978 foot per hours.
foot per hours = nautical mile per days × 253.171478565
For a page dedicated to this direction, see Nautical mile per Days to Foot per Hours.
Understanding the Foot per Hours (ft/h)
Distance divided by time.
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 foot per hours?
1 foot per hours equals 0.003949892 nautical mile per days, using the exact defined conversion factor rather than an estimate.
How do I convert foot per hours to nautical mile per days?
Multiply the foot per hours value by 0.003949892009. The converter above does this instantly to whatever precision you set.
How do I convert nautical mile per days back to foot per hours?
Use the reverse factor: 1 nautical mile per days equals 253.1714786 foot per hours. You can also use the swap control in the converter above to flip the direction instantly.
What is a foot per hours?
Foot per Hours (ft/h) 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 foot per hours to nautical mile per days conversion exact?
Yes. Both foot per hours and nautical mile per days are defined by fixed standards rather than physical artifacts, so the factor of 0.003949892009 used above is exact to as many digits as you choose to display.