Tools

Useful calculations, without an account.

The web tools are free and separate from dBcheck Pro. They provide educational estimates and do not turn a phone into a certified sound level meter.

  1. Safe Exposure Time Calculator

    Estimate the time to a 100% NIOSH daily occupational dose using the 85 dBA / 8 hour / 3 dB model.

    Open calculator

  2. Noise Dose Calculator

    Combine multiple sound-level and duration periods into one estimated daily occupational noise dose.

    Calculate dose

  3. Daily Noise Exposure Level Calculator

    Combine work periods into an eight-hour-normalized L_EX,8h level using the EU occupational model.

    Calculate exposure level

  4. Common Sounds Explorer

    Compare typical decibel ranges for everyday sounds and open detailed sound guides.

    Explore sounds

  5. Decibel Distance Calculator

    Estimate how sound level may change as distance from a source increases under simplified free-field conditions.

    Estimate level

  6. Add Decibels Calculator

    Combine independent sound levels correctly using logarithmic addition instead of ordinary arithmetic.

    Combine levels