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Wind Speed Converter – Free Online Tool

Quick Answer

Convert wind speed between km/h, mph, m/s, and knots instantly with this free wind speed converter from Toolscal. Enter any wind speed and get all formats with Beaufort scale without signup.

Convert wind speed between km/h, mph, m/s, and knots with Beaufort Scale reference

What is Wind Speed Converter? A wind speed converter is a free tool by Toolscal that converts wind speeds between km/h, mph, m/s, knots, and Beaufort scale. Useful for weather analysis, aviation, sailing, and travel planning.

Beaufort Wind Scale

0
Calm
Smoke rises vertically
0-1 km/h
1
Light Air
Smoke drifts
2-5 km/h
2
Light Breeze
Leaves rustle
6-11 km/h
3
Gentle Breeze
Leaves & twigs move
12-19 km/h
4
Moderate Breeze
Small branches move
20-28 km/h
5
Fresh Breeze
Small trees sway
29-38 km/h
6
Strong Breeze
Large branches move
39-49 km/h
7
Near Gale
Whole trees sway
50-61 km/h
8
Gale
Twigs break off
62-74 km/h
9
Strong Gale
Slight damage occurs
75-88 km/h
10
Storm
Trees uprooted
89-102 km/h
11
Violent Storm
Widespread damage
103-117 km/h
12
Hurricane
Devastating damage
118+ km/h

Quick Reference

1 km/h =
0.621 mph
0.278 m/s
0.540 knots
1 mph =
1.609 km/h
0.447 m/s
0.869 knots
1 m/s =
3.600 km/h
2.237 mph
1.944 knots
1 knot =
1.852 km/h
1.151 mph
0.514 m/s

About This Tool

Converts wind speed between m/s, km/h, mph, and knots using meteorological standards.

Accuracy Information

Formula: 1 m/s = 3.6 km/h = 2.237 mph = 1.944 knots
Notes: Standard meteorological conversion factors. Results rounded to 2 decimal places.
Author: Toolscal Engineering
Maintained by: Toolscal Team
Last updated: December 29, 2025
Version: 1.1.0

How to Use

  1. 1Enter wind speed in any unit
  2. 2Other units are automatically calculated
  3. 3View Beaufort Scale for wind description
  4. 4All conversions happen in real-time

Why Use This Tool?

  • Convert weather forecast wind speeds
  • Aviation and marine speed calculations
  • Understand international weather reports
  • Storm and hurricane tracking
  • Sailing and navigation planning

Frequently Asked Questions

What is the difference between km/h and mph?

km/h (metric) is used globally, mph (imperial) in US/UK. 1 mph = 1.609 km/h. Toolscal converts between all units instantly.

What are knots?

Knots are nautical miles per hour used in aviation and marine navigation. 1 knot = 1.852 km/h. Toolscal converts knots for sailing and flight planning.

What is the Beaufort Scale?

Beaufort Scale estimates wind from Force 0 (calm, 0-1 km/h) to Force 12 (hurricane, 118+ km/h). Toolscal displays Beaufort equivalent for any wind speed.

How fast is hurricane-force wind?

Hurricane winds start at 118 km/h (73 mph / 64 knots / 33 m/s). Toolscal shows Beaufort Force 12 for these extreme winds.

What unit does aviation use?

Aviation primarily uses knots for wind speed. Toolscal converts knots to km/h, mph, and m/s for flight planning and weather analysis.

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