343
m/s
1,234.8
km/h
767.27
mph
343
m/s
1,234.8
km/h
767.27
mph
The Speed of Sound to Meters per Second Converter provides precise speed of sound to m/s conversion.
The speed of sound in air at 20°C equals approximately 343 m/s (1,234.8 km/h, 767.3 mph) Understanding this conversion is important for scientists, engineers, pilots, and enthusiasts working in fields that require accurate speed measurement and conversion across different scales.
Our converter uses internationally standardized conversion factors, ensuring results are accurate and reliable. Simply enter your value and receive instant results in multiple related units.
Speed of sound in dry air at 20°C = 343 m/s. It varies with temperature: v ≈ 331.3 + 0.606 × T(°C) m/s. In water, sound travels about 1,480 m/s.
The results use standard conversion factors. Note that Mach number and speed of sound depend on atmospheric conditions (temperature, pressure, humidity). Values shown use standard sea-level conditions at 20°C unless otherwise noted.
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Scaled-up conversion.
In air at 20°C, the speed of sound is approximately 343 m/s.
Yes. The speed of sound in air increases by about 0.6 m/s for each 1°C increase in temperature.
About 1,480 m/s — roughly 4.3 times faster than in air.
At 0°C in dry air, the speed of sound is approximately 331.3 m/s.
Sound travels faster in denser, less compressible media. Water is about 800 times denser than air but much less compressible.
All conversions use standard definitions. Mach and speed-of-sound conversions assume standard atmospheric conditions (20°C at sea level).
Yes, simply use the inverse formula or look for the reverse converter in our collection.
This conversion is commonly used in aviation, physics, and engineering.
Metric and distance-based conversions are exact. Temperature-dependent conversions (Mach, speed of sound) use standard conditions.
Conversion factors are from NIST, BIPM, ICAO, and ISO standards.
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