Powerful Tools for
Smarter Energy Decisions
Free, easy-to-use calculators and converters to help you save energy, reduce costs and build a sustainable future.
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Air Conditioner Running Cost Calculator
Calculate the real cost of running your air conditioner.
Use ToolAppliance Energy Cost Calculator
Find out exactly how much it costs to run your home appliances.
Use ToolCarbon Offset Calculator
Calculate the cost to offset your unavoidable carbon emissions.
Use ToolCommercial Solar ROI Calculator
Estimate the ROI of a commercial solar installation.
Use ToolEV Charging Planner
Forecast home charging cost, charging hours, and solar overlap.
Use ToolEV Range Calculator
Calculate real-world EV range.
Use ToolEV Road Trip Planner
Plan your next electric road trip.
Use ToolEV Total Cost of Ownership Calculator
Calculate the true cost of owning an EV over 5 or 10 years.
Use ToolEV vs Gas Cost Calculator
Compare the annual fuel cost of driving an electric vehicle versus a gas-powered car.
Use ToolElectricity Cost Optimizer
Directly compare a flat-rate tier against a time-of-use plan and estimate monthly bills.
Use ToolEnergy Inflation Calculator
Project your future utility bills.
Use ToolHeat Pump ROI Calculator
Compare the long-term cost of a heat pump against gas or electric heating.
Use ToolHome Battery Planner
Size the perfect battery for your home and calculate its ROI.
Use ToolHome Electrification Planner
Plan your home's transition from gas to electric.
Use ToolHome Energy Audit Tool
Get a quick assessment of your home's energy efficiency.
Use ToolHome Upgrade Prioritizer
Find out what upgrade you should do next based on ROI.
Use ToolLED Upgrade Savings Calculator
Find out how much you'll save switching to LEDs.
Use ToolNet Zero Calculator
Track your progress toward a net-zero lifestyle.
Use ToolNet Zero Roadmap Generator
Generate a roadmap to Net Zero emissions.
Use ToolPersonal Sustainability Audit
Audit your personal lifestyle for carbon impact.
Use ToolSolar Economics Calculator
Estimate annual savings, break-even timing, and lifetime upside for a residential solar project.
Use ToolSolar System Size Calculator
Determine the ideal solar panel system size for your household.
Use ToolAI Usage Carbon Calculator
Calculate the carbon footprint of your AI prompts.
Use ToolEV Battery Replacement Cost Calculator
Estimate the future cost of replacing an EV battery.
Use ToolEV Charging Time Calculator
Estimate how long it will take to charge your EV.
Use ToolFlight Carbon Calculator
Calculate the exact carbon emissions of your next flight.
Use ToolHVAC Size Calculator
Determine the correct tonnage/BTUs for your home's HVAC.
Use ToolHome Carbon Cut Tracker
See how solar, efficiency improvements, and electrification reduce your emissions.
Use ToolHome Insulation Savings Calculator
Estimate savings by upgrading your attic insulation.
Use ToolRefrigerator Running Cost Calculator
See how much your fridge is costing you.
Use ToolRoof Solar Suitability Checker
Quickly assess if your roof is a good candidate for solar.
Use ToolSolar Export Tariff Calculator
Calculate your earnings from exporting solar back to the grid.
Use ToolSolar Inverter Size Calculator
Calculate the perfect inverter size.
Use ToolSolar Lease vs Buy Calculator
Compare leasing versus buying solar.
Use ToolSolar Loan Calculator
Calculate your monthly solar loan payments.
Use ToolSolar Panel Output Calculator
Estimate the real-world daily output of a solar panel array.
Use ToolSolar Panel Tilt Calculator
Optimize your solar panel tilt angle.
Use ToolSolar Shading Loss Calculator
Estimate energy loss due to shading.
Use ToolStandby Power Calculator
Calculate the hidden cost of vampire power.
Use ToolWater Heater Cost Calculator
Compare the running cost of gas, electric, and heat pump water heaters.
Use ToolWebsite Carbon Calculator
Estimate the carbon footprint of your website.
Use ToolWindow Upgrade Savings Calculator
Calculate ROI for upgrading to double or triple-pane windows.
Use ToolSmall Calculations,
Big Impact
Every calculation you make brings us closer to a cleaner, more sustainable future.
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