Air Quality Index (AQI)
Calculate Air Quality Index (AQI) instantly with the exact formula and a worked example. Free online calculator — no signup, works on mobile.
Air Quality Index (AQI)
PM2.5, µg/m³
AQI
68.0435
More about: Air Quality Index (AQI)
What it calculates
The “Air Quality Index (AQI)” calculator computes AQI from 1 parameter: pm2.5, µg/m³.
A handy everyday calculator for daily tasks.
Example calculation
With parameters PM2.5, µg/m³ = 20 the result is 68.04.
How to use
- Enter the parameter values — every field above is adjustable with a slider.
- The result and related metrics are calculated automatically as you type.
- Use the additional metrics shown (if any) where needed.
- Copy the result or bookmark the page.