Kilometers per Hour to Knots (km/h → kn)
Formula
1 km/h = 0.539957269941486 knConversion Table
| km/h | kn |
|---|---|
| 0 | 0 |
| 1.0000 | 0.53996 |
| 2.0000 | 1.0799 |
| 3.0000 | 1.6199 |
| 4.0000 | 2.1598 |
| 5.0000 | 2.6998 |
| 6.0000 | 3.2397 |
| 7.0000 | 3.7797 |
| 8.0000 | 4.3197 |
| 9.0000 | 4.8596 |
| 10.000 | 5.3996 |
| 11.000 | 5.9395 |
| 12.000 | 6.4795 |
| 13.000 | 7.0194 |
| 14.000 | 7.5594 |
| 15.000 | 8.0994 |
| 16.000 | 8.6393 |
| 17.000 | 9.1793 |
| 18.000 | 9.7192 |
| 19.000 | 10.259 |
| km/h | kn |
|---|---|
| 20.000 | 10.799 |
| 21.000 | 11.339 |
| 22.000 | 11.879 |
| 23.000 | 12.419 |
| 24.000 | 12.959 |
| 25.000 | 13.499 |
| 26.000 | 14.039 |
| 27.000 | 14.579 |
| 28.000 | 15.119 |
| 29.000 | 15.659 |
| 30.000 | 16.199 |
| 31.000 | 16.739 |
| 32.000 | 17.279 |
| 33.000 | 17.819 |
| 34.000 | 18.359 |
| 35.000 | 18.899 |
| 36.000 | 19.438 |
| 37.000 | 19.978 |
| 38.000 | 20.518 |
| 39.000 | 21.058 |
| km/h | kn |
|---|---|
| 40.000 | 21.598 |
| 41.000 | 22.138 |
| 42.000 | 22.678 |
| 43.000 | 23.218 |
| 44.000 | 23.758 |
| 45.000 | 24.298 |
| 46.000 | 24.838 |
| 47.000 | 25.378 |
| 48.000 | 25.918 |
| 49.000 | 26.458 |
| 50.000 | 26.998 |
| 51.000 | 27.538 |
| 52.000 | 28.078 |
| 53.000 | 28.618 |
| 54.000 | 29.158 |
| 55.000 | 29.698 |
| 56.000 | 30.238 |
| 57.000 | 30.778 |
| 58.000 | 31.318 |
| 59.000 | 31.857 |
| km/h | kn |
|---|---|
| 60.000 | 32.397 |
| 61.000 | 32.937 |
| 62.000 | 33.477 |
| 63.000 | 34.017 |
| 64.000 | 34.557 |
| 65.000 | 35.097 |
| 66.000 | 35.637 |
| 67.000 | 36.177 |
| 68.000 | 36.717 |
| 69.000 | 37.257 |
| 70.000 | 37.797 |
| 71.000 | 38.337 |
| 72.000 | 38.877 |
| 73.000 | 39.417 |
| 74.000 | 39.957 |
| 75.000 | 40.497 |
| 76.000 | 41.037 |
| 77.000 | 41.577 |
| 78.000 | 42.117 |
| 79.000 | 42.657 |
Kilometers per Hour to Knots Conversion
Converting Kilometers per Hour (km/h) to Knots (kn) is a common speed conversion. 1 km/h equals 0.539957 kn. For example, 100 km/h is equal to 53.995727 kn.
Quick Mental Math: Kilometers per Hour to Knots
Divide km/h by 1.852 to estimate knots.
Why is converting Kilometers per Hour to Knots tricky?
Nautical knots are only used in maritime and aviation; unfamiliar to land-based users.
Quick Reference Values
1 km/h = 0.539957 kn. 5 km/h = 2.699786 kn. 10 km/h = 5.399573 kn. 25 km/h = 13.498932 kn. 50 km/h = 26.997863 kn. 100 km/h = 53.995727 kn.
What is Kilometers per Hour?
Kilometers per Hour (km/h) is a unit of speed. Kilometers per hour (km/h) measures speed as the number of kilometers traveled in one hour. It converts directly to meters per second by multiplying by 1000/3600. This unit is standardized internationally for expressing road and vehicle speeds [bipm-si-brochure]. The kilometer per hour unit was adopted alongside the metric system in the 19th century, formalized by the International System of Units (SI) established by the BIPM. It became widespread for transportation speed limits due to metrication efforts in Europe and worldwide [bipm-si-brochure]. Kilometers per hour is the standard speed measurement in most countries, including all European nations, Canada, Australia, and many others. It is used extensively in road traffic regulations, automotive industries, and international transportation standards [nist-si-guide].
What is Knots?
Knots (kn) is a unit of speed. A knot is a unit of speed equal to one nautical mile per hour. It precisely corresponds to 1.852 kilometers per hour or 0.51444 meters per second. The knot is internationally recognized for maritime and aviation speed measurements and is defined using the international nautical mile of exactly 1852 meters [nist-si-guide]. The knot originated from the practice of measuring speed at sea using a 'log line' with knots tied at regular intervals. The term and unit were standardized with the adoption of the international nautical mile in 1929 by the International Hydrographic Organization [nist-si-guide]. Knots are the standard speed unit in global maritime navigation and aviation. Countries and organizations like the International Maritime Organization (IMO) and International Civil Aviation Organization (ICAO) mandate its use for vessel and aircraft speed reporting [nist-si-guide].
Common Misspellings
People often search for this conversion using these alternate spellings: kilometres per hour, kmph, kph, kilometer per hour, km/hr, knotz, knotses, knotss, knotts. All of these refer to the Kilometers per Hour to Knots conversion.