Free DIY calculators, room planners, and material estimators — all in one place. No sign-up, no cost, no limits.
Professional-grade calculators and planners used by contractors — now free for homeowners.
Calculate exact paint quantities for walls, ceilings, and trim. Adjusts for doors, windows, and number of coats.
Calculate Paint →Get accurate tile counts for any room including waste factor, pattern selection, and underlayment needs.
Estimate Tiles →Track and total all your renovation materials in one dynamic spreadsheet-style calculator with tax and discount.
Track Costs →Heavy-duty estimators for foundations, masonry, and structural framing.
Estimate bricks or blocks for walls with mortar joints and wastage factors.
Estimate Bricks →Estimate cubic yards for slabs, columns, and footings. Includes bag counts.
Calculate Concrete →Universal bag estimator for concrete, mortar, or plaster projects.
Calculate Cement →Calculate rebar weight, length, and grid spacing for reinforced concrete.
Estimate Steel →Calculate cement and sand for brickwork or blockwork with custom mix ratios.
Mix Mortar →Estimate metal or corrugated sheets required with overlap and waste factors.
Plan Roof →Calculate materials for wall plastering including cement-sand ratios and thickness.
Calculate Plaster →Estimate sand tonnage and volume for landscaping, pool bases, or masonry.
Calculate Sand →Get precise weight/volume for driveway gravel, pea stone, or drainage rock.
Estimate Gravel →Precision calculators for wiring, solar energy, and water system management.
Estimate household power consumption and kWh units for billing or solar planning.
Calculate Load →Calculate the number of solar panels and total system size required for your home.
Go Solar →Estimate correct wire gauge and voltage drop for safe electrical installations.
Size Wire →Calculate capacity in liters and gallons for cylindrical or rectangular storage tanks.
Estimate Tank →Estimate total pipe footage and fitting allowances for plumbing rough-ins.
Plan Piping →Track daily household water consumption and find opportunities to conserve.
Track Water →Drag and drop furniture on an interactive grid. Plan room layouts before buying.
Design Layout →Estimate gypsum boards, POP bags, and metal channels for interior ceilings.
Estimate Ceiling →Calculate total lumens and number of LED bulbs needed for any room type.
Plan Lighting →Calculate panel width and fabric yardage with professional fullness ratios.
Estimate Drapes →Estimate rolls including pattern repeat and paste.
No registration, no credit card, no complicated software. Just smart planning tools that work.
Type in your room length, width, and height. Our tools handle all the math automatically.
Select painting, tiling, flooring, wallpaper, or furniture layout — we have the right tool for every job.
See real-time calculations as you type. Quantities, costs, and timelines update live on screen.
Print a professional-looking materials list for your hardware store or contractor quotes.
"The paint calculator saved me from buying 4 extra gallons! I put in all my windows, doors and it gave me the exact amount I needed. Brilliant tool."
"Used the furniture layout planner before buying my new sectional sofa. It fit perfectly — no returns, no regrets. This app is a game changer."
"The tile estimator with waste factor is incredibly accurate. I'm a contractor and I use this to give quick estimates to clients on the spot. Love it!"
Planning a home renovation project can feel overwhelming — between calculating how much paint you need, figuring out tile quantities, estimating materials costs, and arranging furniture, the details quickly add up. That's exactly why we built HomeCraft Planner, a free suite of professional-grade DIY home project calculators designed to make every homeowner and renovation enthusiast feel like a professional contractor.
Generic calculators give you rough estimates. Our tools go further: the paint calculator deducts the area of your doors and windows, accounts for multiple coats, and tells you exactly how many gallons to buy — no wasted paint, no second trips. The tile and flooring estimator offers pattern selection (straight lay, diagonal, herringbone) and includes a customizable waste factor of 5–15% so you always have enough tiles to handle cuts and breakage.
Our material cost calculator lets you add up to 20 items dynamically, apply tax rates and discounts, and generate a clean printable estimate. Whether you're comparing quotes from two suppliers or budgeting a full kitchen renovation, this tool keeps your finances organized and transparent.
The furniture layout designer banishes the guesswork of "will this sofa fit?" — drag and drop from our furniture library onto a scaled room grid, rotate pieces, place doors and windows, and see your living space come alive on screen before spending a single dollar. Our room dimension analyzer helps you understand traffic flow and space optimization, essential factors often overlooked in renovation planning.
Hanging wallpaper is notoriously tricky — pattern repeat alone can waste a significant number of rolls if not calculated correctly. Our wallpaper calculator handles pattern repeat allowances automatically, comparing standard roll sizes in both metric and imperial measurements. Meanwhile, the project duration calculator breaks down your renovation into phases — prep, application, drying, and finishing — based on team size and skill level, giving you a realistic home improvement timeline you can actually stick to.
Every formula in HomeCraft Planner is based on industry-standard formulas and real-world contractor experience. We use the standard 350 sq ft per gallon paint coverage rate (adjustable for your brand), ISO tile size standards for grout spacing, and professional project estimation methods endorsed by renovation professionals worldwide. Our tools are updated regularly to reflect the latest material standards and best practices in the home improvement industry.
Whether you're a weekend DIYer tackling your first bedroom makeover, or a professional contractor managing multiple renovation projects at once, HomeCraft Planner gives you the precision, speed, and clarity to plan smarter and renovate better — completely free, forever.
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