Plan once. Buy with confidence.
Measure it.
Price it.
Build it.
Turn room dimensions and outdoor measurements into material quantities, estimated costs, and a printable shopping list—without an account or a sales pitch.
2 finish coats2 gal
Five focused planners
From first measurement
to the checkout list.
Each calculator handles multiple areas, transparent formulas, product package sizes, waste, and optional local prices.
Independent by design
A planner—not a product funnel.
Use the package coverage and prices available where you live. The result explains its assumptions, so you can check every number.
Plan the whole project
Add rooms, beds, pours, or fence runs instead of repeating a one-field calculator.
Price real packages
Compare bag or box counts and keep the exact quantity visible beside the rounded purchase.
See the formula
Every result includes assumptions, conservative allowances, and a worked example.
Save without signing up
Your project can stay in localStorage, travel in a share link, or print to a PDF on your device.
Measure with context
Guides that make the
numbers more useful.
Estimate concrete volume when the base is uneven
Split a slab into measured depth zones, calculate each volume and keep the allowance separate. Avoid using one shallow measurement for the whole order.
Calculate paint separately for each colour and finish
Group paint areas by the exact product, colour and finish before rounding cans. Use a worked example to avoid a misleading whole-house total.
Cubic yards to tonnes: ordering landscape materials
Convert a landscape volume into an estimated weight using the supplier’s bulk density, with clear units, an example and questions to ask before delivery.
Tile box coverage: why nominal size is not enough
Use the exact tile carton coverage to turn a measured area into whole boxes, while keeping nominal size, actual dimensions and waste separate.
How to measure a room for paint
Measure wall perimeter, height, ceilings, doors, and windows for a paint estimate you can audit.
How much paint does a gallon cover?
Compare gallon, five-gallon, quart, and litre paint coverage, then adjust label area for coats, porosity, and waste.