# AQI to Cigarettes Calculator

> A free educational tool that converts a confirmed U.S. PM2.5 AQI and duration into a rough population-level cigarette-equivalent health-impact estimate.

## Canonical
- https://www.aqitocigarettescalculator.org/

## Core pages
- Calculator: https://www.aqitocigarettescalculator.org/
- AQI Value Pages: https://www.aqitocigarettescalculator.org/aqi/150
- AQI Levels Guide: https://www.aqitocigarettescalculator.org/learn/aqi-levels
- Glossary: https://www.aqitocigarettescalculator.org/learn/glossary
- Protection Guide: https://www.aqitocigarettescalculator.org/resources/protection
- Methodology: https://www.aqitocigarettescalculator.org/methodology
- Air Quality Tools: https://www.aqitocigarettescalculator.org/tools
- Daily Exposure Calculator: https://www.aqitocigarettescalculator.org/tools/daily-air-pollution-exposure-planner
- Air Purifier Room Size & CADR Calculator: https://www.aqitocigarettescalculator.org/tools/air-purifier-size-calculator
- Air Purifier Electricity Cost Calculator: https://www.aqitocigarettescalculator.org/tools/air-purifier-electricity-cost-calculator
- DIY Air Cleaner & Corsi-Rosenthal Box Calculator: https://www.aqitocigarettescalculator.org/tools/diy-air-cleaner-calculator
- Cigarette Smoke AQI Calculator: https://www.aqitocigarettescalculator.org/tools/cigarette-smoke-aqi-calculator
- Scenario Guides: https://www.aqitocigarettescalculator.org/scenarios
- City Guides: https://www.aqitocigarettescalculator.org/cities
- Blog: https://www.aqitocigarettescalculator.org/blog
- Why AQI Apps Disagree: https://www.aqitocigarettescalculator.org/blog/why-air-quality-apps-show-different-aqi
- Which AQI Can Be Converted: https://www.aqitocigarettescalculator.org/blog/can-you-convert-any-aqi-to-cigarettes
- AirNow Fire and Smoke Map Guide: https://www.aqitocigarettescalculator.org/blog/how-to-read-airnow-fire-and-smoke-map

## Result scope
- Each result names the assumed U.S. PM2.5 AQI, duration, estimated PM2.5 concentration, and rough cigarette-equivalent health-impact value.
- The estimate is not particle mass, inhaled dose, cigarettes actually smoked, a personal risk score, or medical advice.

## Data and methodology
- AQI to PM2.5 conversion uses the U.S. EPA and AirNow PM2.5 breakpoint method.
- The cigarette-equivalence concept follows Berkeley Earth's population-level risk-communication framing.
- An overall AQI driven by ozone or another pollutant must not be converted as PM2.5.
- A cigarette has no fixed AQI; the cigarette-smoke tool converts measured room PM2.5 rather than inferring a value from cigarette count.

## Last updated
- 2026-08-13