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Speed of Sound in Air
Formula
The speed of sound in air depends on temperature. At 20°C it is about 343 m/s. The linear approximation v = 331.3 + 0.606T (in °C) is accurate for typical atmospheric conditions. Warmer air transmits sound faster because molecules move more quickly.
Common use cases:
- Acoustic engineering
- Distance estimation via echo timing
- Aviation Mach number calculations
Frequently Asked Questions
Sarah Chen
Financial Analyst, CFA
Sarah is a Chartered Financial Analyst with over 8 years of experience in investment management and financial modeling. She specializes in retirement planning and compound interest calculations.
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