Noise / Acoustics Calculator
Static · formula-only · worked example computed when this page was built · no live data
The Noise / Acoustics Calculator finds the sound pressure level at a distance from a source and checks it against the room's noise-criteria limit. Example: for a 95 dB machine in a 400 m² factory, measured 5 m away, Sound pressure = 73.04 dB, NC limit = 40 NC, Source power = 95 dB (per ISO 9613-2 | OSHA 29 CFR 1910.95 | DOLE D.O. 13 | ASHRAE 2019 Ch.8 | IEC 61672-1).
How it works
Computed from your inputs per ISO 9613-2 | OSHA 29 CFR 1910.95 | DOLE D.O. 13 | ASHRAE 2019 Ch.8 | IEC 61672-1. Anything the worked example does not state uses this calculator's standard default; the interactive version shows every input and lets you change it.
Worked example (Mechanical & Machine Design)
Inputs: a 95 dB machine in a 400 m² factory, measured 5 m away.
| Result | Value |
|---|---|
| Sound pressure | 73.04 dB |
| NC limit | 40 NC |
| Source power | 95 dB |
Computed by WorkHive's calculation engine when this page was built; standard: ISO 9613-2 | OSHA 29 CFR 1910.95 | DOLE D.O. 13 | ASHRAE 2019 Ch.8 | IEC 61672-1.
How to use this calculator
- Read the worked example. It uses a 95 dB machine in a 400 m² factory, measured 5 m away and shows every number in the method.
- Follow the formula with your own figures: it returns Sound pressure, NC limit, Source power, computed per ISO 9613-2 | OSHA 1910.95 | DOLE D.O. 13.
- To compute interactively, open the Noise / Acoustics Calculator inside WorkHive's free Engineering Design suite (link below). It runs the same method with your inputs.
FAQ
What is an industrial noise level distance calculator?
The Noise / Acoustics Calculator is a free online tool that finds the sound pressure level at a distance from a source and checks it against the room's noise-criteria limit. It shows the formula and a fully worked example so you can check the method, not just the number.
How is it calculated?
The result is computed from your inputs following ISO 9613-2 | OSHA 1910.95 | DOLE D.O. 13. The worked example on this page shows a real computation with real numbers.
Is the calculator free?
Yes. WorkHive is free: this worked example is open to everyone, and the interactive calculator runs inside the free Engineering Design suite after a free sign-up (your work is saved to your account). WorkHive is a free, offline-first maintenance platform built for Philippine industrial plants.
Run it on your own numbers
Open the interactive Noise / Acoustics Calculator in WorkHive. Free, and a free sign-up saves your calculations, BOMs and scope-of-works to your account.