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DIY materials, energy costs, renovation budgets. Skip the lead-gen, skip the signup, get your number in seconds. 100+ calculators for homeowners and DIYers.

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10 categories, 100+ calculators. Every answer is instant.

Terracotta #c4553a
Paint
Coverage, gallons, cost per wall
12 calculators
Granite #8a8f94
Concrete
Slabs, patios, driveways, cubic yards
10 calculators
Walnut #a67c52
Flooring & Tile
Square footage, grout, waste factor
8 calculators
Cedar #6b5b3e
Decking
Boards, joists, stain coverage
6 calculators
Eggshell #d6d0c4
Drywall
Sheets, screws, mud, tape
5 calculators
Fiberglass #e8b5d3
Insulation
R-values, square footage, payback
7 calculators
Bark #5a4632
Mulch & Gravel
Cubic yards, bags, coverage area
6 calculators
Amber #e8a838
Home Energy
Electricity cost, heat pump, appliance cost
10 calculators
Forest #2d6a4f
Solar ROI
Panel count, break-even, lifetime savings
8 calculators
Navy #2d3e50
Project Budget
Reno cost, room breakdown, quote comparison
9 calculators

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Paint calculator for a 12 x 12 room

Paint Coverage Calculator
~4
gallons for 2 coats
Covers 12x12 room with 8 ft ceilings, minus average door and window area. Textured walls, add 15%. Color change, primer recommended.

"Most home improvement calculators lead somewhere ugly."

A form to "get matched with pros." An email signup. A "quote from a contractor near you" pretending to be a result. A solar calculator that resells your address to 5 installers. We don't. Every calculator here shows the math and gives you the number. No forms. No email. No contractor referral. Just the answer.