Environmental & Sustainability
Calculate your environmental impact and find ways to reduce it.
Carbon Footprint Calculator
Estimate your annual carbon footprint from driving, electricity, heating, and air travel. Compare to US and world averages.
Solar Panel Savings Calculator
Calculate solar panel savings, payback period, and return on investment. Includes federal tax credits, production estimates, and 25-year projections.
Electricity Cost Calculator
Calculate the electricity cost of any appliance or device. Find out daily, monthly, and yearly energy costs based on wattage and usage.
Water Usage Calculator
Estimate your daily, monthly, and annual water usage and cost. Identify which activities use the most water.
EV Savings Calculator
Calculate how much you'd save by switching to an electric vehicle, including fuel, maintenance, and CO2 reduction.
Home Energy Audit Calculator
Evaluate your home's energy efficiency and find potential savings from upgrades like better windows and insulation.
Tree Planting Impact Calculator
Calculate the environmental impact of planting trees. See CO2 absorbed, oxygen produced, and the equivalent in cars offset or miles driven.
Commute Emissions Calculator
Calculate the annual carbon emissions and fuel cost from your daily commute. Compare car, hybrid, EV, bus, and bike options.
Recycling Impact Calculator
Calculate the environmental impact of recycling. See how much CO2, energy, and water you save by recycling.
Compost Calculator
Calculate how much compost you can produce and its environmental impact. Track your composting efforts.
Carbon Footprint Master Calculator
Complete carbon footprint calculator — estimate your total emissions, analyze commute impact, compare EV vs gas vehicles, and calculate carbon offset costs.