How to convert knots to kilometers per hour
Knots and Kilometers per Hour both measure speed, so converting is a single multiplication. One kn equals 1.851997 km/h, so you multiply your knots value by 1.851997.
Formula: kilometers per hour = knots × 1.851997. For example, 10 kn = 18.519969 km/h.
Knots to Kilometers per Hour conversion table
| Knots (kn) | Kilometers per Hour (km/h) |
|---|---|
| 1 | 1.851997 |
| 2 | 3.703994 |
| 5 | 9.259985 |
| 10 | 18.519969 |
| 25 | 46.299923 |
| 50 | 92.599846 |
| 100 | 185.199692 |
| 1,000 | 1,851.996918 |
Knots and Kilometers per Hour explained
Knots (kn): One nautical mile per hour, used in aviation and shipping.
Kilometers per Hour (km/h): The metric speed unit for vehicles in most of the world.
When you'd convert knots to kilometers per hour
You'll convert knots to kilometers per hour whenever a measurement is given in one unit but you need it in the other — comparing knots and kilometers per hour figures across regions, following a recipe or spec, or double-checking a number. Because 1 kn is exactly 1.851997 km/h, the result is precise every time.
Frequently asked questions
How many kilometers per hour are in a knot?
One kn equals 1.851997 km/h. Multiply your knots figure by 1.851997 to get kilometers per hour.
What is the formula to convert knots to kilometers per hour?
kilometers per hour = knots × 1.851997. The factor 1.851997 is exact.
What is 2 knots in kilometers per hour?
2 kn = 3.703994 km/h. You can enter any value in the converter above to get an instant result.
Is this Knots to Kilometers per Hour converter accurate?
Yes. It uses the standard conversion factor (1 kn = 1.851997 km/h) defined by BIPM — SI Brochure (derived units), so results are exact to several decimal places.