Sound Level
Convert between Pa, µPa, dB SPL (ref 20 µPa), W/m² and mW/cm². dB is logarithmic — read notes below.
Conversion Result
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Pa (Pascals)
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dB SPL
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W/m²
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Precision
20 µPa (0 dB)
94 dB (~1 Pa)
60 dB (typical)
1 W/m² (very loud)
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