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How to convert decibel a to sound pressure

Converting decibel a to sound pressure is possible because there is a fixed relationship: since 1 decibel a is the same as 1 in SPL.

The formula to perform this conversion is:

SPL=dBA– pondera����oAmathrm{SPL} = mathrm{dBA} – text{ponderação A}

Learn how to calculate:

  1. Choose the value that is in dBA.
  2. Enter that number into the formula.
  3. The conversion is done by remove filter by the 1 value.

The final number is the conversion in sound pressures (SPL).

Example:

Solving the conversion of 65 dBA to SPL is easy using the 1 value. Watch the step by step: 65 → 1 = 65. In the end, 65 dBA perfectly equals 65 SPL.

65 dBArightarrow65 SPL65 text{ dBA} rightarrow 65 text{ SPL}

Continue converting!

Decibel (dB) -> Sound Pressure (SPL)
Decibel C (dBC) -> Decibel A (dBA)
Decibel (dB) -> Neper (Np)
Bel (B) -> Sound Pressure (SPL)