Measurement Category Hub

Speed & Velocity Converters & Calculators

Convert speed and velocity rates between meters per second, kilometers per hour, miles per hour, feet per second, knots, and Mach. Use our universal interactive speed & velocity calculator below or select one of our dedicated conversion shortcuts.

Speed & Velocity

From: Meter per Second

(m/s)

Example: 10 m/s

To: Kilometer per Hour

(km/h)

e.g. 36km/h

Standard: 100 km/h ≈ 62.137 mph = 27.778 m/s

Enter any number above to convert Meters per Second to Kilometers per Hour. Click (i) for brief unit info.

Popular Speed & Velocity Conversions

2 dedicated tools

Miles per Hour to Kilometers per Hour Converter

Convert speed ratings and vehicle velocities from mph to km/h.

km/h = mph × 1.609344

Kilometers per Hour to Miles per Hour Converter

Convert metric speed from km/h to imperial mph.

mph = km/h ÷ 1.609344

Supported Speed & Velocity Units & Standards

Unit Name	Symbol	Type / System	Relative Value
Meter per SecondBase SI	m/s	SI Standard Unit	1 m/s = 1 base
Kilometer per Hour	km/h	Derived Unit	1 km/h = 0.2777777777777778 base
Mile per Hour	mph	Derived Unit	1 mph = 0.44704 base
Foot per Second	ft/s	Derived Unit	1 ft/s = 0.3048 base
Knot (Nautical Mile/hr)	kn	Derived Unit	1 kn = 0.5144444444444445 base
Mach (Standard Sea Level 15°C)	Ma	Derived Unit	1 Ma = 340.29 base

Speed & Velocity FAQs

In the International System of Units (SI) or standard physical conventions, the base reference unit is Meter per Second. All linear conversions within this category are mathematically derived from this base factor.