Knots to Kilometers per Hour Converter
Knots are the ancient mariner's unit — still standard for ships and aircraft worldwide — while km/h is the landsman's speed. Converting knots to km/h matters for sailors reading 20-knot wind forecasts, ferry timetables, and aviation ground speeds. One knot equals exactly 1.852 km/h (one nautical mile per hour), so multiply knots by 1.852. The nautical mile itself is defined as exactly 1,852 meters, tied to one minute of latitude, which is why the knot never varies. The converter above works instantly both ways, the table spans harbor speeds to cruising pace, and the FAQs explain the nautical mile behind the knot.
Knots to KM/H Calculator
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Quick Reference Table
| Knots (knots) | Kilometers per Hour (km/h) |
|---|---|
| 1 | 1.852 |
| 2 | 3.704 |
| 3 | 5.556 |
| 4 | 7.408 |
| 5 | 9.26 |
| 6 | 11.112 |
| 7 | 12.964 |
| 8 | 14.816 |
| 9 | 16.668 |
| 10 | 18.52 |
| 10 | 18.52 |
| 30 | 55.56 |
| 40 | 74.08 |
| 50 | 92.6 |
Frequently Asked Questions
How many kilometers per hour are in 20 knots?
20 knots = 37.04 kilometers per hour. Just apply the conversion to any value with the converter above.
What is the formula to convert knots to kilometers per hour?
To convert knots to kilometers per hour, multiply the number of knots by 1.852. In short: 1 knot = 1.852 km/h.
How fast is 20 knots in km/h?
20 knots equals 37.04 km/h — a brisk sailing breeze or a fast ferry. Multiply 20 × 1.852 = 37.04 km/h. Enter 20 in the converter to verify.
How do I convert kilometers per hour back to knots?
Simply reverse the math: to go from kilometers per hour to knots, divide the kilometers per hour by 1.852.