Knots to mph and wind speed converter
Regions and countries use reference points; choose a place for a local result.
1 knot = 1.151 mph = 1.852 km/h = 0.514 m/s. 1 m/s = 3.6 km/h = 2.237 mph.
Right now in London · Wind speed11.9 km/h
- 3.3 m/s
- 11.9 km/h
- 7.4 mph
- 6.4 knots
- Force 2: Light breeze
Beaufort wind scale
| Level | Description | km/h | m/s | knots | mph |
|---|---|---|---|---|---|
| 0 | Calm | < 1 | < 0.3 | < 1 | < 1 |
| 1 | Light air | 1–5 | 0.3–1.5 | 1–3 | 1–3 |
| 2 | Light breeze | 6–11 | 1.6–3.3 | 4–6 | 4–7 |
| 3 | Gentle breeze | 12–19 | 3.4–5.4 | 7–10 | 8–12 |
| 4 | Moderate breeze | 20–28 | 5.5–7.9 | 11–16 | 13–18 |
| 5 | Fresh breeze | 29–38 | 8.0–10.7 | 17–21 | 19–24 |
| 6 | Strong breeze | 39–49 | 10.8–13.8 | 22–27 | 25–31 |
| 7 | Near gale | 50–61 | 13.9–17.1 | 28–33 | 32–38 |
| 8 | Gale | 62–74 | 17.2–20.7 | 34–40 | 39–46 |
| 9 | Strong gale | 75–88 | 20.8–24.4 | 41–47 | 47–54 |
| 10 | Storm | 89–102 | 24.5–28.4 | 48–55 | 55–63 |
| 11 | Violent storm | 103–117 | 28.5–32.6 | 56–63 | 64–72 |
| 12 | Hurricane force | ≥ 118 | ≥ 32.7 | ≥ 64 | ≥ 73 |
Wind speed right now by country (capital cities)
| Place | km/h | m/s | knots | Level |
|---|---|---|---|---|
| Tanzania | 20.2 | 5.6 | 10.9 | 4 · Moderate breeze |
| Ireland | 19.8 | 5.5 | 10.7 | 4 · Moderate breeze |
| New Zealand | 19.4 | 5.4 | 10.5 | 3 · Gentle breeze |
| Fiji | 16.2 | 4.5 | 8.7 | 3 · Gentle breeze |
| Belgium | 15.1 | 4.2 | 8.2 | 3 · Gentle breeze |
| Australia | 13.0 | 3.6 | 7.0 | 3 · Gentle breeze |
| Netherlands | 13.0 | 3.6 | 7.0 | 3 · Gentle breeze |
| France | 12.6 | 3.5 | 6.8 | 3 · Gentle breeze |
| Portugal | 12.6 | 3.5 | 6.8 | 3 · Gentle breeze |
| United Kingdom | 11.9 | 3.3 | 6.4 | 2 · Light breeze |
| Finland | 11.5 | 3.2 | 6.2 | 2 · Light breeze |
| Macau | 11.5 | 3.2 | 6.2 | 2 · Light breeze |
| Argentina | 10.8 | 3.0 | 5.8 | 2 · Light breeze |
| South Africa | 10.8 | 3.0 | 5.8 | 2 · Light breeze |
| Senegal | 10.4 | 2.9 | 5.6 | 2 · Light breeze |
| Austria | 10.1 | 2.8 | 5.4 | 2 · Light breeze |
| Canada | 10.1 | 2.8 | 5.4 | 2 · Light breeze |
| Russia | 10.1 | 2.8 | 5.4 | 2 · Light breeze |
| Hong Kong | 9.4 | 2.6 | 5.1 | 2 · Light breeze |
| Sudan | 9.4 | 2.6 | 5.1 | 2 · Light breeze |
| Ukraine | 9.4 | 2.6 | 5.1 | 2 · Light breeze |
| Czechia | 9.0 | 2.5 | 4.9 | 2 · Light breeze |
| Mexico | 9.0 | 2.5 | 4.9 | 2 · Light breeze |
| Spain | 9.0 | 2.5 | 4.9 | 2 · Light breeze |
| Bahrain | 8.6 | 2.4 | 4.7 | 2 · Light breeze |
| Zimbabwe | 8.6 | 2.4 | 4.7 | 2 · Light breeze |
| Angola | 8.3 | 2.3 | 4.5 | 2 · Light breeze |
| Sweden | 8.3 | 2.3 | 4.5 | 2 · Light breeze |
| Peru | 7.9 | 2.2 | 4.3 | 2 · Light breeze |
| Poland | 7.9 | 2.2 | 4.3 | 2 · Light breeze |
| Afghanistan | 7.6 | 2.1 | 4.1 | 2 · Light breeze |
| Papua New Guinea | 7.2 | 2.0 | 3.9 | 2 · Light breeze |
| United States | 6.8 | 1.9 | 3.7 | 2 · Light breeze |
| Zambia | 6.8 | 1.9 | 3.7 | 2 · Light breeze |
| Bhutan | 6.5 | 1.8 | 3.5 | 2 · Light breeze |
| Cameroon | 6.5 | 1.8 | 3.5 | 2 · Light breeze |
| Germany | 6.5 | 1.8 | 3.5 | 2 · Light breeze |
| Ghana | 6.5 | 1.8 | 3.5 | 2 · Light breeze |
| Oman | 6.5 | 1.8 | 3.5 | 2 · Light breeze |
| Iran | 6.1 | 1.7 | 3.3 | 2 · Light breeze |
| Kenya | 6.1 | 1.7 | 3.3 | 2 · Light breeze |
| United Arab Emirates | 6.1 | 1.7 | 3.3 | 2 · Light breeze |
| Rwanda | 5.8 | 1.6 | 3.1 | 2 · Light breeze |
| Colombia | 5.4 | 1.5 | 2.9 | 1 · Light air |
| Japan | 5.4 | 1.5 | 2.9 | 1 · Light air |
| Kuwait | 5.4 | 1.5 | 2.9 | 1 · Light air |
| Qatar | 5.4 | 1.5 | 2.9 | 1 · Light air |
| Taiwan | 5.4 | 1.5 | 2.9 | 1 · Light air |
| Algeria | 5.0 | 1.4 | 2.7 | 1 · Light air |
| Brazil | 5.0 | 1.4 | 2.7 | 1 · Light air |
| Chile | 5.0 | 1.4 | 2.7 | 1 · Light air |
| South Korea | 5.0 | 1.4 | 2.7 | 1 · Light air |
| Egypt | 4.7 | 1.3 | 2.5 | 1 · Light air |
| Ethiopia | 4.7 | 1.3 | 2.5 | 1 · Light air |
| Israel | 4.7 | 1.3 | 2.5 | 1 · Light air |
| Jordan | 4.7 | 1.3 | 2.5 | 1 · Light air |
| Trinidad and Tobago | 4.7 | 1.3 | 2.5 | 1 · Light air |
| Jamaica | 4.3 | 1.2 | 2.3 | 1 · Light air |
| China | 4.0 | 1.1 | 2.1 | 1 · Light air |
| Italy | 4.0 | 1.1 | 2.1 | 1 · Light air |
| Brunei | 3.6 | 1.0 | 1.9 | 1 · Light air |
| India | 3.6 | 1.0 | 1.9 | 1 · Light air |
| Saudi Arabia | 3.6 | 1.0 | 1.9 | 1 · Light air |
| Iraq | 3.2 | 0.9 | 1.7 | 1 · Light air |
| Pakistan | 3.2 | 0.9 | 1.7 | 1 · Light air |
| Turkey | 3.2 | 0.9 | 1.7 | 1 · Light air |
| Uzbekistan | 3.2 | 0.9 | 1.7 | 1 · Light air |
| Indonesia | 2.9 | 0.8 | 1.6 | 1 · Light air |
| Morocco | 2.9 | 0.8 | 1.6 | 1 · Light air |
| Singapore | 2.9 | 0.8 | 1.6 | 1 · Light air |
| Ivory Coast | 2.5 | 0.7 | 1.4 | 1 · Light air |
| Mozambique | 2.5 | 0.7 | 1.4 | 1 · Light air |
| Tunisia | 2.5 | 0.7 | 1.4 | 1 · Light air |
| Uganda | 2.5 | 0.7 | 1.4 | 1 · Light air |
| Cambodia | 2.2 | 0.6 | 1.2 | 1 · Light air |
| DR Congo | 2.2 | 0.6 | 1.2 | 1 · Light air |
| Myanmar | 2.2 | 0.6 | 1.2 | 1 · Light air |
| Nepal | 2.2 | 0.6 | 1.2 | 1 · Light air |
| Norway | 2.2 | 0.6 | 1.2 | 1 · Light air |
| Vietnam | 2.2 | 0.6 | 1.2 | 1 · Light air |
| Maldives | 1.8 | 0.5 | 1.0 | 1 · Light air |
| Thailand | 1.8 | 0.5 | 1.0 | 1 · Light air |
| Bangladesh | 1.4 | 0.4 | 0.8 | 1 · Light air |
| Sri Lanka | 1.4 | 0.4 | 0.8 | 1 · Light air |
| Malaysia | 1.1 | 0.3 | 0.6 | 1 · Light air |
| Nigeria | 1.1 | 0.3 | 0.6 | 1 · Light air |
| Laos | 0.7 | 0.2 | 0.4 | 0 · Calm |
| Philippines | 0.7 | 0.2 | 0.4 | 0 · Calm |
Which unit is used where?
Sailors and pilots use knots (nautical miles per hour). US and UK weather forecasts give wind in mph, most other countries use km/h, and meteorologists and many official warnings use meters per second.
Mental shortcuts
Knots to mph: add about 15% (20 kn ≈ 23 mph). m/s to km/h: multiply by 3.6 (10 m/s = 36 km/h). km/h to mph: multiply by 0.62. Type in any box above and the others update, together with the Beaufort force.
Live values come from global weather models (ECMWF, ICON, GFS) via Open-Meteo and refresh every 15 minutes. All calculations on this page run in your browser.
Frequently Asked Questions
How many mph is one knot?
1 knot is 1.15078 mph, because a nautical mile (1,852 m) is longer than a statute mile (1,609.344 m).
How do I convert m/s to km/h?
Multiply by 3.6. 5 m/s = 18 km/h.
What wind speed is a gale?
Beaufort force 8, a gale, is 34–40 knots (39–46 mph, 62–74 km/h).