Free Home & Renovation Calculators
Calculate materials, costs, measurements and more for your next home project.
Popular calculators
Paint Calculator
Find out how much paint you need for your room. Enter your wall dimensions, doors, windows…
FlooringFlooring Calculator
Estimate how much flooring material to buy for your rooms, with a built-in waste allowance…
FlooringTile Calculator
Calculate exactly how many tiles you need based on your area size and tile dimensions, wit…
Paint & WallsWallpaper Calculator
Estimate how many wallpaper rolls you need, accounting for wall size, roll dimensions and …
ConstructionConcrete Calculator
Estimate the volume of concrete you need for a slab, footing, column or round post hole, i…
ConstructionGravel Calculator
Estimate how much gravel you need for a driveway, path or drainage bed, based on area and …
ConstructionMulch Calculator
Estimate how much mulch you need for your garden beds, in cubic yards, cubic feet and numb…
ConstructionPaver Calculator
Calculate how many pavers you need for your patio, walkway or driveway based on area and p…
Browse by category
Paint & Walls
Estimate paint, wallpaper and wall coverage for any room.
Flooring
Work out how much flooring, tile or carpet to buy.
Construction
Concrete, gravel, mulch and paver quantities for outdoor and structural projects.
Home Energy
Estimate electricity usage and appliance running costs.
Moving
Plan a move: costs, boxes, room volume and storage space.
Home & Money
Mortgage, affordability and renovation budget planning.
How it works
Enter your measurements or costs
Fill in the room size, materials or costs for your project. No sign-up required.
Adjust the settings
Choose your units, waste percentage and any project-specific options.
Get your estimate instantly
See your results calculated instantly, right in your browser.
Why use HomeCalc?
Private by design
Every calculation runs locally in your browser. Nothing is uploaded, stored or shared.
Instant results
No sign-up, no login, no waiting. Enter your numbers and get an estimate immediately.
Always free
Every calculator on HomeCalc is free to use, with no limits and no premium tier.
Frequently asked questions
Do I need to create an account to use HomeCalc?
No. Every calculator on HomeCalc works instantly with no sign-up, no login and no payment required.
Are HomeCalc calculators free?
Yes, all calculators are completely free to use, with no limits on how many times you can use them.
How accurate are these calculators?
Each calculator gives a solid estimate based on the numbers you enter and standard industry assumptions. Actual costs and material requirements can vary — see each calculator's disclaimer for details.
Can I use these calculators on my phone?
Yes, every HomeCalc calculator is fully responsive and works well on phones, tablets and desktops.
Is my data stored anywhere?
No. Calculations run locally in your browser and are not uploaded, stored or shared.
Can I suggest a new calculator?
Yes — reach out via our contact page. HomeCalc is actively adding new home and DIY project calculators.