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Wind Speed Unit Converter

风速换算气象米每秒

Convert across 5 wind speed units: m/s, km/h, mph, knots and ft/s with exact factors — for weather watching, sailing, aviation and outdoor sports, fully local.

All processing is done locally in your browser. No data is uploaded.

How to Use

  • Paste any valid JSON, supports nesting, arrays and escapes
  • Click Beautify to auto indent and format
  • Click Minify to remove whitespace into one line
  • All operations run locally for privacy

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FAQ

How fast is a typhoon?

A category-12 typhoon starts at ~32.7 m/s (117.7 km/h); super typhoons exceed 51 m/s — convert any level here.

Why do sailors use knots?

The knot comes from the old log-line method: 1 knot = 1 nautical mile/hour ≈ 1.852 km/h, still the marine/aviation standard.

Will my data be uploaded?

No, all conversions run locally in your browser.