Less guesswork. Better material lists.
Measure your project. Plan your materials.
Turn dimensions into quantities, pack counts, and a shopping list you can check.
No account needed. Your projects stay in this browser.
Patio slab
Example inputs
What are you working on?
From measurements to a list you can check.
See how calculations workMeasure your space
Enter your dimensions and choose the relevant options.
Check the assumptions
Use the coverage, yield and allowance that match your materials.
Round up to whole packs
See the quantity you need and what whole packs will supply.
Make sense of the numbers
Visit the blog
From Net Quantity to a Shopping List
Follow a measured quantity through a chosen allowance and whole-pack rounding, and learn what to check on the final shopping list.
Read the guide
Bags or Bulk: Compare Quantities Before You Buy
Compare bagged and bulk material quantities without assuming prices, delivery terms, package capacities or a universal density.
Read the guideA little guidance, right when you need it.
Short, practical explanations to help you check your results.
Start with the material
Choose a calculator for the material you are buying. Enter your measurements, check the assumptions, then add the result to a project. Each tool keeps measured quantity, your allowance and whole-pack purchasing separate.
Keep the whole project together
Collect rooms, walls and outdoor areas in one list. Matching specifications can share a purchase quantity; different materials and pack sizes remain separate. Add your own prices when you have them.
See how the numbers were reached
Measurement diagrams, formulas and worked examples help you trace a result back to its inputs. Product coverage, yield, density and package size come from the label or information you enter.
Your project stays in your browser
Calculations and project editing run locally. Save a JSON backup when you want a portable copy, or prepare a PDF or CSV shopping list. A browser save is convenient, but it is not a substitute for a backup.
Sources and method
- PackLedge quantity methods
Original derivations using geometry, ratios, sums and whole-package rounding. Each calculator explains its assumptions and worked examples.
- PackLedge product documentation
Instructions for the calculators, browser-local projects, user prices and downloadable project records.