计算器
Speed of Sound Calculator
Calculate the speed of sound in air, water, steel, and 20+ media — with Mach number converter, thunder distance estimator, altitude and humidity corrections
Parameters
0%50%100%
Speed of Sound
345.02 m/s
at 20.0 °C
km/h
1242.07
mph
771.81
knots
670.72
ft/s
1132.01
Relative to Mach 1 (343 m/s at 20°C)
Mach 1.006
Speed of Sound in Various Media
gasGases
Air (20 °C)343 m/s
Air (0 °C)331.3 m/s
Helium1007 m/s
Hydrogen1270 m/s
Carbon Dioxide259 m/s
Methane446 m/s
liquidLiquids
Fresh Water (25 °C)1497 m/s
Sea Water (25 °C)1531 m/s
Mercury1450 m/s
Ethanol1162 m/s
Glycerin1904 m/s
solidSolids
Steel5960 m/s
Aluminum6420 m/s
Copper4760 m/s
Glass (Pyrex)5640 m/s
Concrete3400 m/s
Wood (Oak)3850 m/s
Rubber1600 m/s
Diamond12000 m/s
Granite6000 m/s
Ice3980 m/s
Bone4080 m/s
Formulas
Speed in dry air
v = 331.3 + 0.606 × T (°C)Linear approximation valid from -40°C to +60°C
Ideal gas (exact)
v = √(γ × R × T / M)γ=1.4 for air, R=8.314 J/(mol·K), M=0.029 kg/mol
Mach number
Ma = v_object / v_soundMa < 1 subsonic, Ma > 1 supersonic
Mach cone angle
sin(α) = 1 / MaHalf-angle of shock cone at supersonic speeds
Lightning distance
d = v_sound × tCount seconds between flash and thunder
Temperature lapse rate
T_alt = T_ground - 6.5°C/km × hStandard atmosphere troposphere model
继续探索
您可能喜欢的其他 计算器…
百分比计算器
即时计算百分比、百分比变化和总量的百分比
立即试用
科学计算器
功能齐全的科学计算器，支持三角函数、对数等
立即试用
统计计算器
从数据计算均值、中位数、众数、标准差和方差
立即试用
分数计算器
加减乘除分数，附带分步解答
立即试用
年龄计算器
从出生日期计算精确的年、月、日年龄
立即试用
Dog / Cat Age Calculator
Convert your dog or cat's age to human years based on species, size, and AVMA guidelines
立即试用
GPA计算器
从课程成绩和学分计算绩点
立即试用
子网计算器
计算IP地址的子网掩码、网络地址和主机范围
立即试用