Distance divided by time.
Nautical mile per Days to Kilometer per Days Converter — nmi/d to km/d
Convert Nautical mile per Days (nmi/d) to Kilometer per Days (km/d) using the exact conversion factor (1 nautical mile per days = 1.852 kilometer per days). See the formula, worked examples, and conversion table.
Nautical mile per Days 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 0.02143518519 / 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 Days to Kilometer per Days
Nautical mile per Days 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 days × 1.852
This factor comes from each unit's defined relationship to the category's base unit: 1 nautical mile per days equals 0.0214351851852 base units, and 1 kilometer per days equals 0.0115740740741 base units, so dividing one by the other gives the direct nautical mile per days-to-kilometer per days factor of 1.852.
Simple example
1 nmi/d × 1.852 = 1.852 km/d
1 nautical mile per days = 1.852 kilometer per days.
Real-world example
10 nmi/d × 1.852 = 18.52 km/d
10 nautical mile per days = 18.52 kilometer per days.
Conversion table
| Nautical mile per Days (nmi/d) | Kilometer per Days (km/d) |
|---|---|
| 1 nmi/d | 1.852 km/d |
| 5 nmi/d | 9.26 km/d |
| 10 nmi/d | 18.52 km/d |
| 25 nmi/d | 46.3 km/d |
| 50 nmi/d | 92.6 km/d |
| 100 nmi/d | 185.2 km/d |
Reverse conversion: Kilometer per Days to Nautical mile per Days
1.852 km/d × 0.5399568035 = 1 nmi/d
1.852 kilometer per days = 1 nautical mile per days.
nautical mile per days = kilometer per days × 0.539956803456
For a page dedicated to this direction, see Kilometer per Days to Nautical mile per Days.
Understanding the Nautical mile per Days (nmi/d)
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 days?
1 nautical mile per days equals 1.852 kilometer per days, using the exact defined conversion factor rather than an estimate.
How do I convert nautical mile per days to kilometer per days?
Multiply the nautical mile per days value by 1.852. The converter above does this instantly to whatever precision you set.
How do I convert kilometer per days back to nautical mile per days?
Use the reverse factor: 1 kilometer per days equals 0.5399568035 nautical mile per days. You can also use the swap control in the converter above to flip the direction instantly.
What is a nautical mile per days?
Nautical mile per Days (nmi/d) 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 days to kilometer per days conversion exact?
Yes. Both nautical mile per days and kilometer per days are defined by fixed standards rather than physical artifacts, so the factor of 1.852 used above is exact to as many digits as you choose to display.