Acoustic Waves calculators
16 calculators Beat Frequency Calculator Find the beat frequency, beat period, average pitch and amplitude swing of two close tones, reverse solve a missing frequency, or analyse detuning in cents for tuning.
Open Doppler Effect Calculator Find the Doppler-shifted frequency, wavelength and percent shift for sound or light. Set the medium or air temperature, pick speed units, and check the Mach number.
Open Frequency Converter Convert frequency between Hz, kHz, MHz, GHz, THz, rpm, rps and angular units (rad/s, deg/s). See the period, pick a target unit, and read the wavelength too.
Open Acoustic Impedance Calculator Calculate acoustic impedance Z = rho x c, intensity reflection and transmission coefficients for any two materials. Choose from 18 presets or enter custom values.
Open Alfven Velocity Calculator Calculate Alfven wave speed from magnetic field strength and plasma density. Includes plasma beta, Alfven Mach number, ion inertial length, and worked steps.
Open Critical Damping Calculator Calculate the critical damping coefficient, damping ratio, natural frequency, damped frequency, and settling time for any spring-mass-damper system. Free online tool.
Open dB Calculator: Decibels, Sound Pressure and Intensity Calculate decibels from sound pressure (SPL), intensity (SIL), or power/voltage ratios. Convert dB back to linear. Includes worked steps and common-sounds reference table.
Open dB Gain Calculator Calculate decibel gain from power or voltage ratios instantly. Power gain (10 log), voltage gain (20 log), dB-to-ratio reverse modes, and cascaded stage totals.
Open Distance Attenuation Calculator Calculate how sound pressure level drops with distance. Covers point, line, and plane sources using the inverse square law for dB attenuation.
Open Helmholtz Resonator Calculator Calculate the resonance frequency of a Helmholtz resonator from cavity volume, neck area, and neck length. Supports reverse-solve, end correction, and multiple unit systems.
Open Modulation Calculator (AM, FM, PM) AM, FM, and PM modulation index calculator with modulation depth, Carson's rule bandwidth, AM power distribution, sideband frequencies, and over-modulation status.
Open Reverberation Time Calculator Calculate RT60 reverberation time using Sabine and Eyring formulas. Enter room size and surface materials to get decay time and acoustic targets instantly.
Open Sound Wavelength Calculator Calculate the wavelength, frequency, or speed of sound in air, water, steel and 10+ other media. Includes period, wave number, temperature presets and hearing-range context.
Open Sound Absorption Coefficient Calculator Calculate sound absorption coefficient, total room absorption in sabins, RT60 reverberation time, and required treatment area. Material reference table included.
Open Speed of Sound Calculator Calculate the speed of sound in air, fresh water, or seawater from temperature. Get results in m/s, km/h, ft/s, mph, and knots with step-by-step workings.
Open Speed of Sound in Solids Calculator Calculate longitudinal, shear, and Rayleigh wave speeds in any solid. Choose a material preset or enter custom elastic moduli and density. Shows all formulas.
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