knot
knspeed · International · Modern
1 knot = 1 international nautical mile per hour = exactly 1852/3600 m/s.
informal Converter
speed · International · Modern
mile per hour
mphinformal
- Record
- M308
- Definition quality
- Standardized
- Conversion mode
- multiplicative
- Calculator
- Fully calculable
Definition
1 mile per hour = exactly 0.44704 m/s from the exact international mile and 3600-second hour.
Reference value
One mile per hour is equal to 0.44704 metre per seconds.
History & use
A conventional everyday road-speed unit in the U.S. and UK.
Modern use
Modern-use scope is context-dependent; the website should follow the record's current-status and regional/system labels rather than imply universal use.
Did you know?
1 mph = exactly 1.609344 km/h.
Sources & evidence
Source tier Tier A · confidence High