Wind Speed Unit Converter
风速换算气象节米每秒
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.
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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.