OhMyCalc

Noise Exposure Calculator

Calculate noise dose and time-weighted average for occupational noise exposure assessment.

How to Use the Noise Exposure Calculator

  1. Enter noise level in dB(A).
  2. Enter exposure duration in hours.
  3. Enter the action level threshold.
  4. Review noise dose and HPE requirements.

Use Cases

Formula

T_allowed = 8 / 2^((L−85)/3)

Frequently Asked Questions

How accurate is this calculator?
Results are based on standard engineering formulas and are suitable for preliminary estimates.
What units are used?
SI units (metres, kg, kPa) are used unless otherwise noted.
Is it free?
Yes, all calculators are completely free.