// multi-utility computation suite · offline · instant · precise
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sci.mach-number-temperature Calculator
Calculates Mach number M = v/v_sound, and temperature, pressure, and density ratios across normal shocks using isentropic flow relations. Speed of sound in air at 20 °C is 343 m/s — at M = 2, stagnation pressure rises 5.6× and temperature 1.8× across a normal shock.
Inputs
Airspeed Ms
Rate of movement. 1 m/s = 3.6 km/h = 2.237 mph.
Altitude M
Reference formula or conversion factor shown for context.
Static Temp C
Thermal state of the substance. Check whether the formula needs Celsius, Fahrenheit, or Kelvin (K = °C + 273.15).
Results
Mach number
Speed relative to the speed of sound. Below 1: subsonic. Equal to 1: sonic. Above 1: supersonic. Above 5: hypersonic. At Mach 1, aerodynamic drag increases dramatically.
speed of sound at alt (m/s)
The computed rate of movement or processing.
stagnation temperature (K)
The value at the specified point or condition.
stagnation pressure ratio
The proportional relationship between two quantities.
regime
The operating regime — the mode or zone in which the system is currently operating.
at sea level
The measured or computed level on the applicable scale.