Ecology & Environment Calculators
Carbon footprint, water usage, and environmental impact calculators.
Showing 15 of 15 calculators
Carbon Footprint
Estimate your annual carbon footprint in tons of CO₂ from electricity, driving, and natural gas usage.
Solar Panel Calculator
Calculate how many solar panels you need, annual energy production, savings, and payback period for your home.
EV Savings Calculator
Compare annual fuel costs between an electric vehicle and gas car, with breakeven timeline and CO₂ savings.
Water Footprint
Calculate your daily and annual household water usage from showers, laundry, toilets, and outdoor watering.
Tree Planting Offset
Calculate how many trees you need to plant to offset your annual CO₂ emissions, with cost and land estimates.
Compost Calculator
Calculate your compost carbon-to-nitrogen ratio, optimal material balance, and estimated composting time.
Plant Watering Guide
Calculate optimal watering frequency and amount for your plants based on type, pot size, and growing conditions.
Seed Spacing
Calculate the total number of plants, seeds needed, and row layout for your garden based on dimensions and plant type.
Fertilizer Calculator
Calculate how much fertilizer to apply based on garden area, soil nutrient levels, and fertilizer NPK ratio.
Rain Barrel Calculator
Calculate annual rainwater collection potential from your roof area, rainfall, and collection efficiency.
Home Energy Audit
Assess your home's energy efficiency score and identify top improvements with estimated annual savings.
Soil Amendment
Calculate how much lime or sulfur to add to your garden soil to reach the target pH based on soil type.
LED Savings Calculator
Calculate annual energy savings, payback period, and CO₂ reduction from switching to LED light bulbs.
Rainwater Harvesting
Calculate how much rainwater you can collect from your roof based on area, local rainfall, and efficiency. Estimate the optimal tank size for your needs.
Composting Calculator
Calculate the right compost bin size, estimate time to finished compost, and see how much waste you divert from landfills based on your household inputs.
Popular from Other Categories
Meters → Feet
Convert meters to feet and inches instantly with our free online calculator. Accurate metric to imperial length conversion with reference table.
KM → Miles
Convert kilometers to miles instantly with our free online calculator. Accurate metric to imperial distance conversion with a handy reference table.
KG → LBS
Convert kilograms to pounds instantly with our free online calculator. Accurate metric to imperial weight conversion with a useful reference table.
°C → °F
Convert Celsius to Fahrenheit instantly with our free online calculator. Accurate temperature conversion with a quick reference table for common values.
Compound Interest
Calculate compound interest with monthly contributions using our free calculator. See how your investments grow over time with detailed projections.
Mortgage Payment
Calculate your monthly mortgage payment with our free calculator. See total interest costs and payment breakdowns for any loan amount and interest rate.