Compare calculators

Both calculators run independently — change the inputs on either side to compare results.

Waste Reduction Calculator

Quantify how much landfill waste you divert annually through composting, reusable items, and avoiding single-use products. Use it to set personal sustainability goals or measure the impact of a household's eco-friendly habits.

Weekly Compost Weight (lbs)

Reusable Items Used per Week (items)

Single-Use Items Avoided per Week (items)

Fill in the required fields to see your result.

Environment

Air Quality Index Calculator

Estimate the dominant Air Quality Index (AQI) value from PM2.5, PM10, ozone, and NO2 concentrations using a simplified maximum-pollutant formula. Use it for indoor air quality monitoring or rough comparison against EPA outdoor AQI categories.

PM2.5 Concentration (μg/m³)

PM10 Concentration (μg/m³)

Ozone (O₃) Concentration (ppm)

Nitrogen Dioxide (NO₂) (ppm)

Exposure Duration

Fill in the required fields to see your result.

Key differences

	Waste Reduction Calculator	Air Quality Index Calculator
Category	Environment	Environment
Inputs required	3	5
Result	Annual Waste Reduction (lbs)	Air Quality Index (AQI) (AQI)
What it does	Quantify how much landfill waste you divert annually through composting, reusable items, and avoiding single-use products. Use it to set personal sustainability goals or measure the impact of a household's eco-friendly habits.	Estimate the dominant Air Quality Index (AQI) value from PM2.5, PM10, ozone, and NO2 concentrations using a simplified maximum-pollutant formula. Use it for indoor air quality monitoring or rough comparison against EPA outdoor AQI categories.