Climate & Environment
Free environmental calculators for solar position, day length, carbon footprint, and sustainability. Make eco-friendly decisions with data.
Sunrise & Sunset Time Calculator
Calculate sunrise and sunset times for any location
Day Length Calculator
See daylight hours and how the day lengthens or shortens
Solar Position Calculator
Find the sun's elevation and azimuth for any moment
Heat Index Calculator
Calculate how hot it really feels
Wind Chill Calculator
Calculate how cold it really feels
Dew Point Calculator
Find the dew point and how muggy air feels
Wet Bulb Temperature Calculator
Find wet-bulb temperature and heat survivability risk
Relative Humidity Calculator
Find relative humidity from dew point or wet bulb
WBGT Calculator
Calculate Wet Bulb Globe Temperature for heat safety
Air Density Calculator
Air density from temperature, pressure & humidity, plus density altitude
Snow Load Calculator
Calculate roof snow loads based on depth or ASCE 7 standards
Pool Evaporation Calculator
Calculate water evaporation rate from swimming pools
UV Index Calculator
Estimate safe sun exposure time from UV index and skin type
Solar Panel Calculator
Calculate solar system size, cost, and savings for your home
Carbon Footprint Calculator
Estimate your annual CO₂e from transport, home, flights, diet and shopping
Carbon Offset Calculator
Calculate offset cost per ton of CO₂ and trees needed
Flight Emissions Calculator
Estimate per-passenger CO₂ for any flight
Energy Savings Calculator
Calculate energy and cost savings from efficiency upgrades
Ecological Footprint Calculator
Calculate how many Earths we'd need if everyone lived like you
Water Footprint Calculator
Calculate your total water usage including hidden virtual water
Vehicle Emissions Calculator
Estimate your gas or diesel car's tailpipe CO₂ from its MPG
Plastic Footprint Calculator
Calculate your personal plastic waste generation and get reduction tips
Greenhouse Gas Equivalencies Calculator
Convert CO₂ emissions into relatable everyday equivalencies
Tree Carbon Sequestration Calculator
Calculate how much CO₂ trees absorb and offset
EV Emissions Calculator
Compare your EV's grid CO₂ vs a gas car and find break-even
Carbon Tax Calculator
Calculate your carbon tax liability from emissions
Food Carbon Footprint Calculator
Calculate your diet's climate impact
Business Carbon Footprint Calculator
Calculate your company's CO2 emissions
Building Embodied Carbon Calculator
Calculate embodied carbon (kgCO2e) for building materials
Climate Risk Exposure Calculator
Assess your location's climate risk exposure using IPCC methodology
Home Insulation Savings Calculator
Calculate R-value upgrades, energy savings, and payback period
Meat vs Plant Diet Emissions
Compare CO₂ emissions between meat and plant-based diets
Composting Emissions Calculator
Emissions you avoid by composting vs landfill
Appliance Carbon Emissions Calculator
Carbon footprint of your home appliances, by grid region
Household Waste Emissions Calculator
Household waste carbon footprint by stream
Urban Heat Island Calculator
Calculate urban heat island intensity and impact
Free Climate & Environmental Calculators
Make informed decisions about your environmental impact with our climate calculators. From carbon footprint tracking to energy efficiency calculations, these tools help you understand and reduce your ecological footprint.
Why Use Climate Calculators?
Track Your Impact
Measure your carbon footprint and understand how your daily choices affect the environment.
Find Savings
Discover opportunities to reduce energy costs while helping the planet.
Make Better Choices
Compare the environmental impact of different options before making decisions.
Set Goals
Establish realistic sustainability targets based on accurate calculations.
Educational
Learn about environmental metrics and what they mean for our planet.
Free & Accessible
Everyone deserves access to environmental awareness tools at no cost.
How to Use Climate Calculators
Choose the calculator that matches your environmental question.
Enter relevant data about your consumption, travel, or energy use.
View your results with comparisons to averages and benchmarks.
Explore recommendations for reducing your environmental impact.
Track your progress over time by saving or noting your results.
Common Use Cases
Personal Footprint
Calculate your household's carbon emissions from energy, travel, and consumption.
Business Sustainability
Measure corporate environmental impact for ESG reporting and improvement.
Home Efficiency
Evaluate energy-saving upgrades like solar panels, insulation, or efficient appliances.
Travel Planning
Compare the environmental cost of different transportation options.
Frequently Asked Questions
Our calculators use industry-standard emission factors and methodologies. While no calculation is perfect due to varying data sources, they provide reliable estimates for comparison and goal-setting.