Conversor de Velocidade Online Grátis
6 units: m/s, km/h, mph, knot, ft/s, Mach
The Speed Converter converts between six units of speed — metres per second, kilometres per hour, miles per hour, knots, feet per second, and Mach — making it useful for everything from checking a car's speedometer in different units to calculating airspeed in aeronautics or wind speed in meteorology.
Frequently Asked Questions
Sobre Esta Calculadora
Speed is expressed differently depending on the field: road vehicles use km/h or mph, aviation uses knots, physics uses m/s, and supersonic speeds use Mach numbers. Each field has its own reasons for its preferred unit, and converting between them manually requires knowing and applying the exact conversion factor — easy to misremember.
This converter handles all six common speed units in one tool. Mach 1 (the speed of sound) varies with altitude and temperature; the converter uses the standard sea-level value of 340.3 m/s (Mach 1 = 1,235 km/h at 15°C). Knots are used in aviation and maritime navigation because they relate directly to nautical miles per hour, which in turn relate to latitude degrees.
Enter any speed in any unit and all five others update instantly.
O Conversor de Velocidade converte unidades de velocidade, ajudando na compreensão do velocímetro ou dados aerodinâmicos.
Exemplo Resolvido
Converting a wind speed of 45 knots to km/h and mph
Entradas:
- Input: 45 knots
- Target units: km/h and mph
Passo a Passo:
- 1 knot = 1.852 km/h
- 45 × 1.852 = 83.34 km/h
- 1 knot = 1.15078 mph
- 45 × 1.15078 = 51.79 mph
- This corresponds to a Category 1 hurricane-force wind