climate Calculators
Last updated: May 2026
Carbon Footprint Calculator
Estimate annual personal CO₂ emissions from home electricity, natural gas heating, and personal car mileage.
Temperature Converter
Convert any temperature between Celsius, Fahrenheit, and Kelvin using the exact thermodynamic relationships between scales.
Heat Index Calculator
Compute the 'feels-like' temperature when high air temperature is combined with humidity, using the National Weather Service Rothfusz regression.
Wind Chill Calculator
Calculate the wind chill temperature using the NWS/Environment Canada 2001 formula based on air temperature and wind speed.
Dew Point Calculator
Estimate the temperature at which air becomes saturated and dew or frost begins to form, using an approximation of the Magnus formula.
Solar Radiation Calculator
Estimate top-of-atmosphere solar irradiance at solar noon for a given latitude, day of year, and solar declination.
Evapotranspiration Calculator
Estimate monthly potential evapotranspiration (PET) from average temperature, daylight hours, and days in the month using a simplified Thornthwaite-style formula.
Growing Degree Days Calculator
Compute daily Growing Degree Days (GDD) by subtracting a crop-specific base temperature from the average of the day's max and min temperatures.
Rainfall Intensity Calculator
Compute rainfall intensity by dividing total rainfall by the duration in hours.
Climate Normal Calculator
Compute a climate anomaly as the standardised z-score of a current value against the 30-year average and standard deviation.
Household Carbon Footprint Calculator
Estimate your household's total annual CO₂ emissions from electricity, natural gas, driving, and air travel.
Solar Panel Savings Calculator
Estimate your annual savings from going solar based on system size, local sun exposure, installation cost, and available tax credits.
Electric Vehicle vs Gas Car Cost Calculator
Compare the annual operating cost difference between an electric vehicle and a comparable gas car, factoring in fuel costs, maintenance, and EV tax rebates.
Home Energy Efficiency Upgrade Calculator
Calculate the payback period in years for home energy upgrades — insulation, new windows, or a new HVAC system — based on your home size, current energy bill, climate zone, and available rebates.
Tree Planting Carbon Offset Calculator
Find out how many trees you need to plant to offset your annual CO₂ emissions, and what it will cost including planting and multi-year maintenance.
Renewable Energy Investment ROI Calculator
Estimate the 25-year return on investment for solar, wind, or geothermal installations.
Water Conservation Savings Calculator
Estimate 10-year dollar savings from switching to low-flow fixtures, drought-tolerant landscaping, or rainwater harvesting.
Building Cooling Cost & Emissions Calculator
Calculate annual air conditioning electricity costs based on building size, SEER rating, and local climate.
Green Roof Benefits Calculator
Estimate annual energy savings, stormwater retention, and combined financial benefits of installing a green roof.
Carbon Credit Investment Calculator
Estimate the profit or loss from buying and holding carbon credits over a defined period as their price appreciates.
Electric Vehicle Cost Comparison Calculator
Compare fuel costs between an electric vehicle and a gas-powered car over your ownership period.
Home Insulation Energy Savings Calculator
Estimate how long it will take to recoup the cost of upgrading your home's insulation through lower heating bills.
Green Building Investment Calculator
Estimate the payback period for green building upgrades such as LEED certification by weighing upgrade costs against energy savings and rent premiums.
Climate Change Economic Impact Calculator
Project how rising temperatures may erode revenue for your business sector over a chosen time horizon, net of adaptation spending.
Carbon Offset Investment Calculator
Calculate the total cost of purchasing carbon offsets to neutralize a share of your annual CO₂ emissions over a multi-year commitment.
Energy Efficiency Upgrade ROI Calculator
Estimate how quickly your energy efficiency upgrade pays for itself.
Personal Carbon Footprint Calculator
Calculate your total annual carbon footprint in metric tons of CO₂ from driving, electricity use, flights, and diet.
Home Energy Efficiency Calculator
Score your home's energy efficiency based on its size, age, insulation, heating system, and climate zone.
Electric Vehicle Cost Calculator
Compare annual fuel costs between an electric vehicle and a gasoline car based on your driving habits, gas prices, and local electricity rates.
Green Building Cost-Benefit Calculator
Calculate how many years it takes for a green building's energy savings to recover the premium paid for sustainable construction features.
Air Quality Health Impact Calculator
Estimate the annual economic health burden of PM2.5 air pollution on a population.
Climate Adaptation Cost Calculator
Estimate the present-value cost of climate adaptation measures such as flood barriers, cooling infrastructure, or resilient building upgrades.
Emissions Reduction Target Calculator
Track an organization's progress toward a greenhouse gas reduction target as a percentage of goal achieved.
Carbon Offset Cost Calculator
Calculate the annual cost of offsetting a chosen percentage of your CO₂ emissions through renewable energy, reforestation, or methane capture programs.
Heat Pump Efficiency Calculator
Calculate how many years it will take to recover a heat pump installation cost through energy bill savings compared to your current heating system.
Rainwater Harvesting Calculator
Estimate how many gallons of rainwater your roof can collect each year and how much you could save on your water bill.
Personal Climate Action Impact Calculator
Quantify the total CO₂ reduction from combining lifestyle changes like diet, transport, energy, consumption, and waste.
Greenhouse Gas Equivalents Calculator
Convert any greenhouse gas quantity into CO₂ equivalent tonnes using its Global Warming Potential (GWP).
Tree Carbon Sequestration Calculator
Estimate the total CO₂ sequestered by a grove of trees based on species, age, growing conditions, and a chosen time horizon.
Green Building Energy Calculator
Calculate the annual energy cost of a building and the savings achieved by green features like insulation upgrades, solar, and high-efficiency systems.