OSHA Noise Exposure Calculator
OSHA Noise Exposure
Calculate noise dose and time-weighted average for OSHA.
Formula
Dose = (Hours / Allowed Hours) x 100; TWA = 90 + 16.61 x log10(Dose/100)
Frequently Asked Questions
What is the OSHA noise exposure limit?
OSHA allows 90 dBA for 8 hours with a 5 dB exchange rate.
What is a noise dose?
Noise dose is the percentage of allowable exposure received during a work shift.