Paint Calculator
Estimate paintable wall area and gallons or liters for a room.
Open tool →Project category
Painting & Walls
Plan paint and wall-covering projects with measurement-first tools and guides.
Tools for painting & walls
Start with measured dimensions, then replace generic defaults with the specifications from the actual material or equipment.
Wallpaper Calculator
Estimate wallpaper rolls from wall area, openings, coverage and waste.
Open tool →Guides
Use these guides to improve the inputs and assumptions behind the estimate.
How to Measure a Room for Paint
A practical wall-measuring process that separates gross area, openings and paint coverage.
Read guide →How Much Extra Paint Should You Buy?
How coats, touch-ups, texture and product coverage affect a sensible paint allowance.
Read guide →How to Measure Walls for Wallpaper
Measure wall area, openings and roll coverage while allowing for pattern repeat.
Read guide →Planning approach
HomeFix Tools separates the physical measurement from the planning allowance. That distinction matters: room dimensions can be measured, while waste, coverage, intervals and package decisions depend on the actual product, layout or maintenance plan. Keep those assumptions visible and verify them before purchase or high-risk work.