Speed converter
Knots to Kilometers per Hour
Converting Knots to Kilometers per Hour is a single multiplication when you know the factor. One kn equals 1.852 km/h, so multiply the value in kn by 1.852. The calculator below works in both directions and accepts decimals.
Formula 1 kn = 1.852 km/h
Need the other direction? Kilometers per Hour to Knots.
How to convert Knots to Kilometers per Hour
One knot is one nautical mile per hour, exactly 1.852 km/h. Kilometres per hour is the standard road-speed unit in most of the world.
To convert Knots to Kilometers per Hour, multiply the value in kn by 1.852. For example, 10 kn × 1.852 = 18.52 km/h. This works because the ratio between the two units is constant for every value in speed.
Worked examples
| kn | km/h |
|---|---|
| 1 kn | 1.852 km/h |
| 2.5 kn | 4.63 km/h |
| 5 kn | 9.26 km/h |
| 10 kn | 18.52 km/h |
| 25 kn | 46.3 km/h |
| 50 kn | 92.6 km/h |
| 100 kn | 185.2 km/h |
Reverse conversion
| km/h | kn |
|---|---|
| 1 km/h | 0.5399568 kn |
| 5 km/h | 2.699784 kn |
| 10 km/h | 5.399568 kn |
| 25 km/h | 13.49892 kn |
| 50 km/h | 26.99784 kn |
| 100 km/h | 53.99568 kn |
When this conversion is useful
This is the calculation you need when you are reading a car spec, a weather report or an aviation document from another country. Because the factor is fixed, you can use the same number for a single measurement or for a batch: 1,000 kn is 1,852 km/h.
Is the conversion exact?
Yes for practical use: the factors come from international definitions, with rounding applied only for display.
Reference: BIPM SI Brochure and NIST SP 811. Last reviewed: 2026-11-01.
kn to km/h conversion chart
The chart lists the most requested values. For a value that is not here, use the converter at the top of the page.
| Knots (kn) | Kilometers per Hour (km/h) |
|---|---|
| 1 kn | 1.852 km/h |
| 2 kn | 3.704 km/h |
| 3 kn | 5.556 km/h |
| 4 kn | 7.408 km/h |
| 5 kn | 9.26 km/h |
| 6 kn | 11.112 km/h |
| 7 kn | 12.964 km/h |
| 8 kn | 14.816 km/h |
| 9 kn | 16.668 km/h |
| 10 kn | 18.52 km/h |
| 11 kn | 20.372 km/h |
| 12 kn | 22.224 km/h |
| 13 kn | 24.076 km/h |
| 14 kn | 25.928 km/h |
| 15 kn | 27.78 km/h |
| 16 kn | 29.632 km/h |
| 17 kn | 31.484 km/h |
| 18 kn | 33.336 km/h |
| 19 kn | 35.188 km/h |
| 20 kn | 37.04 km/h |
| 21 kn | 38.892 km/h |
| 22 kn | 40.744 km/h |
| 23 kn | 42.596 km/h |
| 24 kn | 44.448 km/h |
| 25 kn | 46.3 km/h |
| 26 kn | 48.152 km/h |
| 27 kn | 50.004 km/h |
| 28 kn | 51.856 km/h |
| 29 kn | 53.708 km/h |
| 30 kn | 55.56 km/h |
| 31 kn | 57.412 km/h |
| 32 kn | 59.264 km/h |
| 33 kn | 61.116 km/h |
| 34 kn | 62.968 km/h |
| 35 kn | 64.82 km/h |
| 36 kn | 66.672 km/h |
| 37 kn | 68.524 km/h |
| 38 kn | 70.376 km/h |
| 39 kn | 72.228 km/h |
| 40 kn | 74.08 km/h |
| 41 kn | 75.932 km/h |
| 42 kn | 77.784 km/h |
| 43 kn | 79.636 km/h |
| 44 kn | 81.488 km/h |
| 45 kn | 83.34 km/h |
| 46 kn | 85.192 km/h |
| 47 kn | 87.044 km/h |
| 48 kn | 88.896 km/h |
| 49 kn | 90.748 km/h |
| 50 kn | 92.6 km/h |
| 60 kn | 111.12 km/h |
| 70 kn | 129.64 km/h |
| 80 kn | 148.16 km/h |
| 90 kn | 166.68 km/h |
| 100 kn | 185.2 km/h |
Frequently asked questions
How many Kilometers per Hour are in 1 Knots?
1 kn equals 1.852 km/h.
How do I convert Knots to Kilometers per Hour?
Multiply the kn value by 1.852. Example: 25 kn = 46.3 km/h.
What is 2.5 kn in km/h?
2.5 kn = 4.63 km/h.
Is the kn to km/h conversion exact?
Yes for practical use: the factors come from international definitions, with rounding applied only for display.
Does the calculator work offline?
Yes. The conversion runs in your browser with JavaScript, so it works after the page has loaded, even without a connection.