Speed Converter
Convert speed units. km/h, m/s, mph, knots and Mach. Includes all common units, instant results and examples.
Note: These calculations are for informational purposes only and do not replace professional tax or financial advice. All information without guarantee.
Frequently Asked Questions
How do I convert km/h to m/s?
Divide km/h by 3.6 to get m/s, or multiply m/s by 3.6 to get km/h. For example, 100 km/h equals about 27.78 m/s.
What are common speed units?
km/h is used in most countries, mph in the UK and US, knots for nautical and aviation, Mach for supersonic speeds (1 Mach is approximately 1,235 km/h at sea level).
What is the Speed Converter?
The speed converter converts between km/h, m/s, mph, knots and other speed units.
How does the Speed Converter work?
Enter the value and source unit. The calculator converts to all common speed units.
Key Data and Facts
1 km/h = 0.2778 m/s. 1 mph = 1.609 km/h. 1 knot = 1.852 km/h. Speed of sound: approx. 1,235 km/h (Mach 1).
Step-by-Step Guide
How to use den Geschwindigkeits-Umrechner step by step: 1. Ausgangseinheit choose -- km/h, m/s, mph (Meilen pro hour), Knoten (kn) oder Mach. 2. Wert enter -- der Rechner konvertiert sofort in alle Einheiten. 3. Wichtige Umrechnungen: km/h in m/s = Wert / 3,6. mph in km/h = Wert * 1,609. Knoten in km/h = Wert * 1,852. 4. Mach-Zahl: Mach 1 = Schallgeschwindigkeit = ca. 1.235 km/h (auf Meereshoehe bei 20 Grad C). In Flughoehe (ca. -57 Grad C) betraegt Mach 1 nur ca. 1.062 km/h. 5. Haeufige Anwendungen: Tempolimits im Ausland umrechnen (65 mph = 104,6 km/h), Windgeschwindigkeiten von Knoten in km/h umwandeln (Beaufort 8 = ca. 34-40 kn = 63-74 km/h), Laufgeschwindigkeiten calculate. Tipp: Fuer schnelle km/h-zu-mph-Schaetzung den Wert durch 1,6 teilen (100 km/h ≈ 62 mph).
Calculation Example
130 km/h in mph: 130 / 1,609 = 80,8 mph. 25 Knoten in km/h: 25 * 1,852 = 46,3 km/h.
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