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Acoustic Unit Converter

Professional, Simple, and Easy-to-Use Acoustic Calculation Tool
Unit Conversion
Speed of Sound

🔊 Sound Pressure Level Conversion

Conversion Result: -
Formula: Lp = 20 × log₁₀(P / P₀), P₀ = 0.00002 Pa

🔊 Sound Power Conversion

Conversion Result: -
Formula: Lw = 10 × log₁₀(P / P₀), P₀ = 10⁻¹² W

📈 Frequency Conversion

Conversion Result: -
Formula: 1 kHz = 1000 Hz

Acoustic Unit Descriptions

Sound Pressure Level (dB SPL): Sound pressure level expressed in decibels, with a reference pressure of 20 micropascals.

Sound Power (W/dB SWL): Sound power is the total acoustic energy radiated by a sound source per unit time. dB SWL is the sound power level expressed in decibels.

Frequency (Hz/kHz): The number of vibrations per second of sound, 1 kHz = 1000 Hz.

🌡️ Speed of Sound Calculator

Calculate the speed of sound in air based on medium temperature

Speed of Sound: -
Formula: c ≈ 331.3 + 0.606 × T (T in Celsius)

Speed of Sound Information

The propagation speed of sound in air is affected by temperature: the higher the temperature, the faster the speed of sound.

At 20°C, the speed of sound is approximately 343 meters/second. For every 1°C increase in temperature, the speed of sound increases by approximately 0.6 meters/second.

This formula applies to dry air at standard atmospheric pressure. Factors such as humidity also have a slight effect on the speed of sound.