US AQI (EPA 2024) to cigarettes per day
Type a value in US AQI to get it in cigarettes instantly.
0.09818cigarettes
Nothing on our list is smaller: the WHO yearly guideline is 2.3× more polluted. On the US index that is AQI 12: good.
What it means
How dirty is that air?
For 24-hour averages of PM2.5 only. Official AQI values take the worst of several pollutants; hourly readings shown by apps are estimates.
The math
How to convert US AQI to cigarettes
The AQI is piecewise linear between breakpoints: 9 µg/m³ = AQI 50, 35.4 = 100, 55.4 = 150, 125.4 = 200, 225.4 = 300 (US EPA, 2024).
Example: 12 US AQI = 0.0981818 cigarettes.
Every unit
That air in every scale
Tables
US AQI to cigarettes conversion table
| US AQI | cigarettes |
|---|---|
| 1 US AQI | 0.00818182 cigarettes |
| 5 US AQI | 0.0409091 cigarettes |
| 9 US AQI | 0.0736364 cigarettes |
| 12 US AQI | 0.0981818 cigarettes |
| 15 US AQI | 0.122727 cigarettes |
| 20 US AQI | 0.163636 cigarettes |
| 25 US AQI | 0.204545 cigarettes |
| 35 US AQI | 0.286364 cigarettes |
| 45 US AQI | 0.368182 cigarettes |
| 55 US AQI | 0.529091 cigarettes |
| 75 US AQI | 1.00909 cigarettes |
| 100 US AQI | 1.60909 cigarettes |
| 150 US AQI | 2.51818 cigarettes |
| 200 US AQI | 5.7 cigarettes |
| 250 US AQI | 7.97273 cigarettes |
| 300 US AQI | 10.2455 cigarettes |
cigarettes to US AQI conversion table
| cigarettes | US AQI |
|---|---|
| 0.0455 cigarettes | 6 US AQI |
| 0.227 cigarettes | 28 US AQI |
| 0.409 cigarettes | 50 US AQI |
| 0.545 cigarettes | 56 US AQI |
| 0.682 cigarettes | 61 US AQI |
| 0.909 cigarettes | 71 US AQI |
| 1.14 cigarettes | 80 US AQI |
| 1.59 cigarettes | 99 US AQI |
| 2.05 cigarettes | 124 US AQI |
| 2.5 cigarettes | 149 US AQI |
| 3.41 cigarettes | 164 US AQI |
| 4.55 cigarettes | 182 US AQI |
| 6.82 cigarettes | 225 US AQI |
| 9.09 cigarettes | 275 US AQI |
| 11.4 cigarettes | 351 US AQI |
| 13.6 cigarettes | 448 US AQI |
Quick answers
Quick answers
- How many cigarettes is 1 US AQI?
- 1 US AQI is 0.00818182 cigarettes.
- How many cigarettes is 10 US AQI?
- 10 US AQI is 0.0818182 cigarettes.
- How many cigarettes is 12 US AQI?
- 12 US AQI is 0.0981818 cigarettes.
The units
About these units
US AQI (EPA 2024) (US AQI)
The US Air Quality Index for PM2.5, with the 2024 breakpoints.
Cigarettes per day (cigarettes)
Berkeley Earth’s equivalent: 22 µg/m³ for a day ≈ one cigarette.
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