Free Home Improvement
Material Calculators
Material Calculators
Enter your dimensions and get a material estimate with waste included. Every result shows the formula. No signup, no brand preference, no guesswork.
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Concrete Calculator
Slabs, patios, and fence post holes. Handles rectangle and cylinder math. Includes 10% waste and ready-mix guidance.
🪣Paint Calculator
Multiple rooms, separate doors and windows, ceiling, primer, and trim. Adjustable coverage rate. Shows cans to buy.
🌿Mulch Calculator
Any garden bed size and depth. Shows bags, cubic yards, and whether bulk delivery makes sense for your project.
🏠Flooring Calculator
Square footage with waste factor for any room. Covers straight lay, diagonal, and L-shaped rooms. Shows boxes to buy.
🪵Fence Calculator
Posts, panels, and rails for any fence length. Accounts for corners, gates, and standard post spacing options.
🔲Tile Calculator
Floor and wall tile for any space. Straight or diagonal layout with waste factor. Shows square footage and box count.
No brand preference. No required signup. Just the calculation.
Every result is brand-neutral. We have no reason to overestimate your material needs.
Opens instantly.
No account, no email, no paywall. Enter your dimensions and get your estimate in seconds.
Every result shows the formula.
Check the math yourself. We show the formula alongside every result so nothing is a black box.
Works on any device.
Pull it up at the hardware store or on the job site. No app required.
Quick Reference Numbers
Common estimates for common projects. Use the calculators above for your exact dimensions.
Concrete
A 10×10 patio at 4" needs about 62 bags of 80 lb concrete (1.36 cu yd) with 10% waste.
A 10" post hole at 3 ft deep needs about 3 bags per post.
A 10" post hole at 3 ft deep needs about 3 bags per post.
Paint & Mulch
A 12×12 room with standard doors and windows needs about 2 gallons for 2 coats at 400 sq ft/gal.
A 10×10 garden bed at 3" needs about 13 bags of 2 cu ft mulch.
A 10×10 garden bed at 3" needs about 13 bags of 2 cu ft mulch.
Flooring, Tile & Fence
A 12×12 room needs at least 160 sq ft of flooring or tile (144 sq ft + 10% waste).
A 100 ft fence at 8 ft spacing needs 14 posts and 13 panels.
A 100 ft fence at 8 ft spacing needs 14 posts and 13 panels.