Noise Exposure Calculator

Calculate noise exposure levels and assess compliance with occupational noise regulations.

Measurement Type:

Single Noise Level Measurement Multiple Time-Weighted Measurements

Noise Level (dBA): Measured A-weighted sound level

Exposure Duration:

hours

Exchange Rate: Noise level increase that doubles the dose

Criterion Level:

Work Days per Week:

Hearing Protection:

None Earplugs (NRR: 25-33 dB) Earmuffs (NRR: 20-30 dB)

Standard	Action Level	PEL/TLV	Exchange Rate	Maximum Peak
OSHA (USA)	85 dBA	90 dBA	5 dB	140 dB
ACGIH (TLV)	85 dBA	85 dBA	3 dB	140 dB
EU Directive	80 dBA	85 dBA	3 dB	137 dB
NIOSH (REL)	82 dBA	85 dBA	3 dB	140 dB

Noise Level (dBA)	Recommended Protection	Required NRR	Action Required
80-85	Optional	NRR 10-15	Hearing conservation program
85-90	Required	NRR 15-20	Mandatory hearing protection
90-100	Required	NRR 20-25	Double protection considered
100+	Required	NRR 25+	Double protection required