Saffir Simpson Scale Speed Converter - Free Online
Convert saffir simpson scale speed values instantly with our free tool.
Get accurate results with clear explanations.
Last updated · How we build & check our tools
Frequently Asked Questions
Common questions about the Saffir Simpson Scale Speed Converter - Free Online
Hurricane intensity scale: Cat 1 (119-153 kph), Cat 2 (154-177 kph), Cat 3-5 (major hurricanes, 178+ kph).
Explore Financial Toolset
Free financial calculators
Sources & References
International System of Units (SI): speed and velocity
Speed and velocity is measured in the metre per second (m/s); 1 mph = 0.44704 m/s. Conversions between SI and other units use exact, internationally agreed factors maintained by NIST.
International System of Units (SI)
Authoritative definitions for speed and velocity, from the BIPM SI Brochure (9th edition), the defining reference for the SI.