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Free OSHA Hearing
Conservation Calculators
The OSHA math your hearing conservation program runs on — without the spreadsheets. Built by Soundtrace for safety managers, HCP coordinators, and CAOHC techs.
How These Tools Fit Together
Four Calculators, One Hearing Conservation Program
A real OSHA Hearing Conservation Program answers four questions about every worker — three operational, one financial. Each calculator answers one of them.
On the Roadmap
More Free Tools Coming Soon
We're building these next. Want to weigh in on what comes first? Tell us at Talk to a CAOHC-certified OHC.
Daily Noise Dose Calculator
Project a worker's daily dose %, time-to-100%, and total acoustic energy at the current noise level — without converting to TWA first.
OSHA Action Level / PEL Comparator
Single-input tool: enter a dBA + duration, get back exactly which OSHA Hearing Conservation Program elements are triggered (monitoring, audiograms, training, HPDs).
Audiogram Plotter
Drop in a worker's thresholds and get a clean, printable per-ear audiogram with PTA, severity classification, and configural pattern (notched, sloping, flat).
Beyond the Calculators
The Resources Behind the Math
Each calculator is one piece of a hearing conservation program. Here's the rest.
How Soundtrace Automates the Whole Program
Research & Reference
Common Questions
Free Tools FAQ
Stop running these calculations by hand
Soundtrace runs every TWA, fit test, audiogram, STS check, and OSHA 300 entry automatically — tied to each worker's record. The calculators on this page are useful. A connected program is faster.