Free Home Improvement Calculators
Take the guesswork out of your next home project. Use our free calculators to accurately measure materials for wallpaper, tile, flooring, paint, and more.
Plan a renovation budget
Build a transparent low-to-high estimate, then continue into the visual tool that matches the next decision.
Interior Painting Cost Calculator
Estimate paint, supplies, and professional labor for one room
Kitchen Remodel Cost Calculator
Build a low-to-high kitchen renovation budget from real project quantities
Bathroom Remodel Cost Calculator
Estimate a bathroom renovation with visible wet-area and contingency costs
Popular project calculators
Start with the calculators homeowners use most before buying materials or choosing fixtures.
Interior & Sizing
Calculate materials for interior projects including crown molding, wainscoting, rugs, curtains, and room sizing.
8 calculators
Flooring
Work out how much material is needed for tile, hardwood, laminate, carpet, and vinyl flooring jobs.
4 calculators
Walls & Ceilings
Calculate materials for wallpaper, drywall, paint, and other wall and ceiling projects.
5 calculators
Roofing
Work out shingles, roofing materials, rafters, and trusses needed for roof jobs.
1 calculators
Kitchen & Bath
Calculate countertop, cabinet, and tile material needs for kitchen and bathroom projects.
7 calculators
HVAC & Electrical
Calculate BTU requirements, lighting needs, duct sizing, and HVAC system capacity.
1 calculators
Looking for outdoor & landscaping calculators?
HomeGPT has calculators for decks, patios, fencing, landscaping, siding, and more exterior projects.
View HomeGPT Outdoor Calculators →Interior & Sizing
View All →Flooring
View All →Laminate Flooring Calculator
Calculate laminate flooring planks and boxes needed
Hardwood Flooring Calculator
Work out how many hardwood boards and bundles will be required.
Carpet Calculator
Calculate carpet square yards and padding needed
Vinyl Flooring Calculator
Calculate vinyl plank or sheet flooring needed
Walls & Ceilings
View All →Interior Painting Cost Calculator
Estimate paint, supplies, and professional labor for one room
Drywall Calculator
Calculate drywall sheets, mud, and tape needed
Baseboard Calculator
Calculate linear feet of baseboard molding needed
Backsplash Calculator
Work out how many tiles or material you need for the kitchen backsplash.
Roofing
View All →Kitchen & Bath
View All →Kitchen Remodel Cost Calculator
Build a low-to-high kitchen renovation budget from real project quantities
Bathroom Remodel Cost Calculator
Estimate a bathroom renovation with visible wet-area and contingency costs
Cabinet Calculator
Estimate cabinets needed for your kitchen
Countertop Calculator
Calculate countertop materials and costs
HVAC & Electrical
View All →Ready to See These Colors in Your Room?
Upload a photo of your room and see it transformed with AI. Try different colors, styles, and layouts - get instant results.
Try AI Room Designer - Free