Speed of Sound Calculator
Free calculate speed of sound in air, water, and gases. determine sound speed from temperature, pressure, and medium properties using ideal gas law and bulk modulus.
Input Parameters
Monatomic: 1.67, Diatomic: 1.4
g/mol
Results
Enter parameters to calculate speed of sound
Speed of Sound Formulas
Ideal Gas
v = √(γRT / M)
Where:
- • v = speed of sound (m/s)
- • γ = adiabatic index
- • R = gas constant (8.314 J/mol·K)
- • T = temperature (K)
- • M = molar mass (kg/mol)
Air (Simplified)
v ≈ 331.3 + 0.606 × T
T in °C
Common Values
- • Air (20°C): 343 m/s
- • Water: 1482 m/s
- • Helium: 965 m/s
- • Hydrogen: 1284 m/s