Speed Converter

Convert between m/s, km/h, mph, knots, and more instantly.

Conversion Results

Meters/sec (m/s)

27.78

Kilometers/hr (km/h)

100.00

Miles/hr (mph)

62.14

Knots (kn)

54.00

Unit Comparison

Speed Converter

UnitValue
Meters/sec (m/s)27.7778 m/s
Kilometers/hr (km/h)100.0000 km/h
Miles/hr (mph)62.1372 mph
Knots (kn)53.9958 kn
Feet/sec (ft/s)91.1345 ft/s
Centimeters/sec (cm/s)2777.7800 cm/s
Mach0.0810 Mach

Complete Guide

What Is Speed Conversion?

Speed conversion changes a velocity measurement from one unit to another. Speed is a scalar quantity representing distance traveled per unit time. Common units include meters per second (m/s), kilometers per hour (km/h), and miles per hour (mph).

Metric Speed Units

The SI unit for speed is meters per second (m/s). Kilometers per hour (km/h) is commonly used for vehicle speeds in metric countries. One m/s equals 3.6 km/h.

Imperial Speed Units

Miles per hour (mph) is the standard for vehicle speeds in the US and UK. Feet per second (ft/s) is used in engineering. One mph equals approximately 1.46667 ft/s.

Key Conversion Factors

1 km/h = 0.277778 m/s. 1 mph = 1.60934 km/h. 1 knot = 1.852 km/h. Mach 1 = 343 m/s (at sea level, 20C). These factors are precise and internationally recognized.

Practical Applications

Speed conversion is essential in aviation (knots), automotive (km/h vs mph), meteorology (wind speeds), sports (athletic performance), and maritime navigation.

Practical Example

Converting 100 km/h

Step 1: Start with 100 km/h.

Step 2: mph: 100 / 1.60934 = 62.14 mph.

Step 3: m/s: 100 / 3.6 = 27.78 m/s.

Step 4: Knots: 100 / 1.852 = 54.0 kn.

Step 5: ft/s: 27.78 x 3.28084 = 91.13 ft/s.

Preguntas Frecuentes

How many km/h is 1 mph?

One mile per hour equals approximately 1.60934 kilometers per hour.

What is a knot?

A knot is one nautical mile per hour, equal to 1.852 km/h or approximately 1.15078 mph. It is used in aviation and maritime navigation.

How fast is Mach 1?

Mach 1 is the speed of sound, approximately 343 meters per second or 1,235 km/h at sea level at 20 degrees Celsius. It varies with temperature and altitude.

How do you convert km/h to m/s?

Divide by 3.6. For example, 100 km/h = 100 / 3.6 = 27.78 m/s.

Why do some countries use mph and others km/h?

Countries using the imperial system (US, UK for road signs) use mph. Most of the world uses km/h as part of the metric system.

Disclaimer: This converter is provided for informational purposes only. Verify critical measurements with professional tools.

References

  1. Wikipedia. "Speed." en.wikipedia.org
  2. NIST. "SI Units." nist.gov

Calculadoras relacionadas

Conversiones y Herramientas

Convertidor de Unidades

Longitud, peso y temperatura.

Velocidad / Distancia / Tiempo

Resuelve la variable faltante.

Horas

Horas trabajadas entre dos horas.

Fechas

Diferencia entre dos fechas.

Tamaño de Pantalla

PPI, dimensiones y proporción.

Comentarios