⚡ Speed
km/h to knots Converter
Convert km/h to knots instantly with a reference conversion table.
Quick answer: To convert km/h to knots, multiply by 0.539957. For example, 1 km/h = 0.539957 knots. Use the calculator below for any value.
km/h to knots
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Common conversions
| km/h | knots |
|---|
Formula:
How to convert km/h to knots
1
Enter your value
Type the number of km/h you want to convert into the left box. The result in knots appears instantly in the right box. You can also type into the right box to convert in the other direction.
2
Use the swap button
Click the ⇄ Swap button to reverse the conversion — knots to km/h. Your current value carries across so you don't have to re-enter anything.
3
About km/h and knots
km/h and knots are common speed measurements.
💡 Did you know?
1 kph = 0.540 knots. Standard cruise altitude for airliners is FL350-FL390 (35,000-39,000 feet) at Mach 0.78-0.85 = 450-490 knots = 834-907 kph. Flight distance and time shown in nautical miles is directly 'knots × hours'.
📊 Common conversions at a glance
| km/h | knots |
|---|---|
| 1 | 0.54 |
| 5 | 2.7 |
| 10 | 5.4 |
| 20 | 10.8 |
| 30 | 16.2 |
| 50 | 27 |
Reviewed for 2026. km/h ↔ knots conversion factor verified against published reference data. Built by a UK-based qualified primary teacher and FA Level 2 coach as part of 247QuickTools' free utility-tools project.