Convert road, aviation, marine and scientific speed units instantly and compare all supported equivalents from one source value.
Convert speed between kilometers per hour, miles per hour, meters per second, feet per second and knots with exact reference factors.
Toolmera converts every supported speed through meters per second, then calculates the selected target and full comparison matrix.
The mph and foot-per-second values use international foot and mile definitions, while knots use the international nautical mile.
Road speeds are commonly expressed in km/h or mph, while marine and aviation speeds commonly use knots. A knot is one nautical mile per hour, not one statute mile per hour.
Toolmera keeps the unit name visible throughout the conversion so those systems are not mixed accidentally.
Type the value and select the source unit.
Select the unit you want to convert into or use a quick pair.
The result and available comparison values update immediately.
Useful next steps in the same workflow.
One mile per hour equals exactly 1.609344 kilometers per hour.
100 km/h is approximately 62.1371 mph.
One knot equals exactly 1.852 km/h.
No. Mach depends on the local speed of sound, which varies with conditions, so it is intentionally excluded from this fixed-factor converter.