Distance divided by time.
Nautical mile per Hours to Kilometer per Days Converter — nmi/h to km/d
Convert Nautical mile per Hours (nmi/h) to Kilometer per Days (km/d) using the exact conversion factor (1 nautical mile per hours = 44.448 kilometer per days). See the formula, worked examples, and conversion table.
Nautical mile per Hours to Kilometer 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 0.5144444444 / 0.01157407407.
Speed uses meters per second as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Nautical mile per Hours to Kilometer per Days
Nautical mile per Hours and Kilometer 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
kilometer per days = nautical mile per hours × 44.448
This factor comes from each unit's defined relationship to the category's base unit: 1 nautical mile per hours equals 0.514444444444 base units, and 1 kilometer per days equals 0.0115740740741 base units, so dividing one by the other gives the direct nautical mile per hours-to-kilometer per days factor of 44.448.
Simple example
1 nmi/h × 44.448 = 44.448 km/d
1 nautical mile per hours = 44.448 kilometer per days.
Real-world example
10 nmi/h × 44.448 = 444.48 km/d
10 nautical mile per hours = 444.48 kilometer per days.
Conversion table
| Nautical mile per Hours (nmi/h) | Kilometer per Days (km/d) |
|---|---|
| 1 nmi/h | 44.448 km/d |
| 5 nmi/h | 222.24 km/d |
| 10 nmi/h | 444.48 km/d |
| 25 nmi/h | 1,111.2 km/d |
| 50 nmi/h | 2,222.4 km/d |
| 100 nmi/h | 4,444.8 km/d |
Reverse conversion: Kilometer per Days to Nautical mile per Hours
44.448 km/d × 0.02249820014 = 1 nmi/h
44.448 kilometer per days = 1 nautical mile per hours.
nautical mile per hours = kilometer per days × 0.022498200144
For a page dedicated to this direction, see Kilometer per Days to Nautical mile per Hours.
Understanding the Nautical mile per Hours (nmi/h)
Distance divided by time.
Understanding the Kilometer per Days (km/d)
Distance divided by time.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many kilometer per days are in 1 nautical mile per hours?
1 nautical mile per hours equals 44.448 kilometer per days, using the exact defined conversion factor rather than an estimate.
How do I convert nautical mile per hours to kilometer per days?
Multiply the nautical mile per hours value by 44.448. The converter above does this instantly to whatever precision you set.
How do I convert kilometer per days back to nautical mile per hours?
Use the reverse factor: 1 kilometer per days equals 0.0224982001 nautical mile per hours. You can also use the swap control in the converter above to flip the direction instantly.
What is a nautical mile per hours?
Nautical mile per Hours (nmi/h) is a unit of speed.
What is a kilometer per days?
Kilometer per Days (km/d) is a unit of speed.
Is the nautical mile per hours to kilometer per days conversion exact?
Yes. Both nautical mile per hours and kilometer per days are defined by fixed standards rather than physical artifacts, so the factor of 44.448 used above is exact to as many digits as you choose to display.