Free Calculators for Any Home Project
Get instant estimates with our suite of free, easy-to-use calculators. From DIY to professional jobs, we have you covered.
Get StartedHVAC
HVAC Load Calculator
Determine the total heating and cooling load for a building (Manual J).
AC Size (BTU) Calculator
Estimate the required BTU for cooling a room.
Duct Size Calculator
Calculate the appropriate size for residential HVAC ductwork.
SEER Savings Calculator
Estimate savings and payback period by upgrading to a more efficient AC unit.
Mini-Split Cost Estimator
Estimate the cost to install a ductless mini-split system.
Furnace Cost Estimator
Estimate the cost of installing a new furnace.
Heat Pump Cost Estimator
Estimate the cost of installing a new heat pump.
Thermostat Savings Calculator
Estimate savings from setting back your programmable thermostat.
Attic Insulation Calculator
Determine the R-value and amount of insulation needed for your attic.
Home Improvement
Paint Coverage Calculator
Calculate how many gallons of paint you need for your project.
Flooring Calculator
Calculate the square footage and waste for your flooring project.
Wallpaper Calculator
Estimate the number of wallpaper rolls needed for a room.
Kitchen Remodel Estimator
Get a ballpark estimate for your kitchen renovation project.
Decking Materials Calculator
Calculate materials needed for building a deck.
Concrete Slab Calculator
Estimate the amount of concrete needed for a slab.
Gardening
Other
Mortgage Calculator
Estimate your monthly mortgage payments including taxes and insurance.
Appliance Energy Cost
Calculate the energy usage and cost of a single appliance.
Energy Savings Calculator
Compare annual costs of two appliances to see potential savings from an upgrade.
Savings Calculator
Estimate the future value of your savings or investments.
Car Loan Calculator
Calculate your monthly car loan payment.
Not Sure Where to Start?
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Ask our AI AssistantEverything You Need to Plan and Build
From initial estimates to final details, we provide the tools for confident project planning.
Comprehensive Calculators
Access a wide range of tools for HVAC, home improvement, gardening, and more, all in one place.
AI-Powered Assistance
Let our smart assistant recommend the right tools and help you fill in the blanks on complex calculations.
Expert Guides & Checklists
Go beyond the numbers with our detailed guides and checklists to ensure your project is a success.