100 Kilometers per hours = 62.137169 Miles per hours
Wind Speed Converter — Convert km/h, mph, knots, m/s, and Beaufort. Live wind speed for your country.
100 Kilometers per hour = 62.137169 Miles per hour
100 km/h = 62.137169 mphUnit
Wind Speed Converter
Generated on April 25, 2026
Beaufort Wind Scale
?What is the Wind Speed Converter?
A wind-speed converter handles the units used in weather forecasts, sailing, aviation, and physics — kilometres per hour for general weather and driving in most of the world, miles per hour for the US and UK, metres per second for scientific work, and knots for everything maritime and aeronautical. Alongside the conversion this calculator also maps any wind speed onto the Beaufort scale, the 0-to-12 force scale invented by Royal Navy admiral Francis Beaufort in 1805 and still used today by sailors, surfers, and meteorologists. The Beaufort number gives an immediately useful sense of what a wind 'feels like' — calm, breeze, gale, hurricane — without needing to remember which numeric speeds are dangerous.
The Formula
Metres per second is the SI base, and all numeric conversions route through it. Knots are nautical: 1 knot = 1 nautical mile per hour = 1.852 km/h, an accident of cartography that survives because nautical miles correspond to one minute of latitude. The Beaufort scale's mapping to wind speed was originally based on observed sea conditions for naval signalling; the modern numeric definition uses v ≈ 0.836·F^1.5 m/s, which gives the standard Force-12 hurricane threshold at 32.7 m/s (≈ 118 km/h, 73 mph).
Wind Speed Reference Table — km/h, mph, knots, m/s & Beaufort
Common wind speeds with Beaufort force and what each level feels like outdoors.
| km/h | mph | knots | m/s | Beaufort | Description |
|---|---|---|---|---|---|
| 1 | 0.62 | 0.54 | 0.28 | 0 | Calm — smoke rises straight up |
| 6 | 3.73 | 3.24 | 1.67 | 1 | Light air — smoke drifts |
| 12 | 7.46 | 6.48 | 3.33 | 2 | Light breeze — leaves rustle |
| 20 | 12.43 | 10.80 | 5.56 | 3 | Gentle breeze — small twigs move |
| 29 | 18.02 | 15.66 | 8.06 | 4 | Moderate breeze — dust raised |
| 39 | 24.23 | 21.06 | 10.83 | 5 | Fresh breeze — small trees sway |
| 50 | 31.07 | 27.00 | 13.89 | 6 | Strong breeze — umbrellas hard to use |
| 62 | 38.53 | 33.48 | 17.22 | 7 | Near gale — whole trees in motion |
| 75 | 46.60 | 40.50 | 20.83 | 8 | Gale — twigs broken from trees |
| 89 | 55.30 | 48.06 | 24.72 | 9 | Strong gale — slight structural damage |
| 103 | 64.00 | 55.62 | 28.61 | 10 | Storm — trees uprooted |
| 118 | 73.32 | 63.72 | 32.78 | 12 | Hurricane force — devastation |
Put It in Perspective
5 km/h is a casual walking pace; you barely notice the wind on your face.
20 km/h (Beaufort 3) is what you feel cycling on a calm day — leaves and small twigs in constant motion.
60 km/h (Beaufort 7, 'near gale') makes walking against the wind noticeably harder; outdoor dining umbrellas blow away.
118 km/h (Beaufort 12) is the official hurricane / Category-1 cyclone threshold — buildings sustain widespread damage.
A jet airliner at cruising altitude moves at ~900 km/h — about 7.5× hurricane wind speed, but the cabin feels still because the air moves with you.
Olympic 100 m sprinters get a wind-aided record only up to a 7.2 km/h tail-wind (2 m/s); above that, the time is wind-assisted and not counted.
Practical Examples
60 km/h equals 16.7 m/s, 37.3 mph, or 32.4 knots — Beaufort Force 7 ('Near gale'), where whole trees sway and walking outdoors becomes uncomfortable.
118 km/h is the official threshold for Beaufort Force 12 (hurricane force), the same number used by tropical cyclone scales worldwide as Category 1 — widespread structural damage and uprooted trees.
Aircraft taxi speeds are typically 30 knots (~55 km/h, 35 mph); takeoff for an airliner is usually 140–180 knots.
A typical sailing dinghy is most enjoyable in 8–18 knots (Beaufort 3–5 — 'Gentle breeze' to 'Fresh breeze').
The fastest wind ever measured at the surface was 408 km/h (220 knots, 254 mph) in a 1996 cyclone in Australia — well into Force 12.
Olympic 100 m sprint records are wind-assisted only up to +2 m/s tail-wind; above that, the time doesn't count.
Frequently Asked Questions
Popular Conversions
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