Compare calculators

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

Composting Impact Calculator

Measure the greenhouse gas reduction from composting your kitchen and garden organic waste. Combine waste weight, compost conversion rate, and a methane reduction factor to get CO₂-equivalent savings.

Organic Waste Weight (kg)

Compost Conversion Rate (ratio)

Methane Reduction Factor (kg CO2 equiv)

Fill in the required fields to see your result.

Recycling

Battery Recycling Calculator

Find out how many kilograms of battery weight you keep out of landfills by recycling batteries. Select AA/AAA, phone, or car batteries and enter the quantity to get the total weight diverted.

Number of Batteries (batteries)

Battery Type (kg factor)

Fill in the required fields to see your result.

Key differences

	Composting Impact Calculator	Battery Recycling Calculator
Category	Recycling	Recycling
Inputs required	3	2
Result	CO2 Equivalent Prevented (kg CO2e)	Total Battery Weight (kg)
What it does	Measure the greenhouse gas reduction from composting your kitchen and garden organic waste. Combine waste weight, compost conversion rate, and a methane reduction factor to get CO₂-equivalent savings.	Find out how many kilograms of battery weight you keep out of landfills by recycling batteries. Select AA/AAA, phone, or car batteries and enter the quantity to get the total weight diverted.