Start with the space
Enter your measurements in metric or imperial units. Deduct openings and keep the calculation clear.
Free building calculators · Made for your next project
Better numbers.
Better building.
From the first measurement to the final quotation. Free, practical tools to help you plan materials, compare costs and build with confidence.
Metric & imperialYour local currencyNo sign-up needed
PROJECT NOTES / 001
MEASURE TWICE.PLAN WITH CONFIDENCE.
The essentials
One project. Every calculation.
Choose a material, enter your measurements and see the numbers behind the estimate.
01
PlanningArea Calculator
Calculate rectangular floor or wall area, then subtract openings and excluded sections.
Open calculator02
FinishesTile Calculator
Estimate the number of rectangular tiles for a floor or wall, including a waste allowance.
Open calculator03
FinishesPaint Calculator
Estimate paint from the actual surface area, number of coats and the coverage stated on your paint tin.
Open calculator04
StructureConcrete Calculator
Estimate concrete volume for a rectangular slab, with an allowance for ordering and site losses.
Open calculator05
MaterialsGlass Weight Calculator
Estimate the area and weight of rectangular, single-layer flat glass panels from their dimensions and thickness.
Open calculator06
FinishesFlooring Calculator
Work out how many packs of laminate, vinyl or timber flooring you need from the coverage printed on the box.
Open calculator07
MaterialsBrick Calculator
Estimate rectangular facing bricks for one layer of a wall, allowing for mortar joints and waste.
Open calculator08
PlanningMaterial Cost Calculator
Estimate material costs with your local unit price, discount, tax, labour and transport.
Open calculatorA simple workflow
Measure. Estimate. Make a plan.
Plan the materials
Use your product dimensions, coverage and chosen allowance. Check the formula and worked example.
Price your project
Add local prices and separate service charges. Keep quantities and costs together in a practical quotation.
Before you order
A little planning goes a long way.
Measuring01
How to measure a room for a material estimate
A practical measurement workflow for floors, walls and openings, including irregular rooms and common metre-to-foot mistakes.
5 min readMaterial planning02
How to choose a material waste allowance
Separate measured quantity, cutting allowance, spare stock and pack rounding so your material order is easier to check.
5 min readQuotations03
How to write a clear material quotation
Organise quantities, units, discounts, labour and delivery into a quotation that a customer can understand and a supplier can check.
5 min readUseful estimates start with good inputs. These tools calculate material quantities and costs from your measurements. Check the product specification and final order with your supplier or installer. See our methodology.