At 20 °C (68 °F), the speed of sound in air is about 343 m/s (1,125 ft/s; 1,235 km/h; 767 mph; 667 kn), or 1 km in 2.92 s or one mile in 4.69 s. It depends strongly on temperature as well as the medium …

Speed of Sound at a known temperature and density of air. Speed of Sound vs Density of Air. Effect of temperature on properties of air. Given normal atmospheric conditions, the temperature, and thus …

May 21, 2024 · What is the Speed of Sound? The speed of sound varies depending on altitude, temperature and the medium through which it travels. For example, at sea level in a standard …

The speed of sound is the distance a sound wave travels through an elastic medium. The speed of sound through air at 20 °C is equal to 343 meters per second, [1] or roughly 767 miles per hour.

This page explains the speed of sound, which varies by medium and is primarily influenced by temperature, with specific formulas for gases and considerations for solids and fluids. Sound speed …

To calculate the speed of sound in water, just choose the temperature — Fahrenheit °F or Celsius °C. You can also choose the desired unit — with this tool, you can find the speed of sound in mph, ft/s, …

Nov 27, 2025 · The speed of sound in dry air at 68°F (20°C) is approximately 767 miles per hour (mph). This value, often called Mach 1, isn't a universal constant; it changes based on the medium, …

Dec 3, 2025 · speed of sound, speed at which sound waves propagate through different materials. In particular, for dry air at a temperature of 0 °C (32 °F), the modern value for the speed of sound is …

The speed of sound in air at sea level and at 20°C (68°F) is approximately 343 meters per second. To convert this to miles per hour (mph), we can use the conversion factors: 1 meter = 0.000621371 …

The speed of sound is approximately 767 miles per hour (mph) at sea level and at a temperature of 20 degrees Celsius (68 degrees Fahrenheit). However, this speed can vary depending on factors such …