Construction Calculators
UK edition — UK Building Regulations, metric units
📐Area & Volume
Concrete Volume
Cubic metres for slabs, footings, columns
Aggregate Quantity
Tons/m³ of gravel, sand, crushed stone
Screed Quantity
Volume of screed for floors
Rendering Quantity
M² coverage and bags of render
Cubic Metres
Volume from dimensions with unit conversions
Square Metres
Area calculations and conversions (m², ft², acres)
Soil & Excavation
Excavation volume, bulking factors, skip loads
Tarmac & Asphalt
Tonnes of tarmac for driveways and roads
Gravel & Crushed Stone
Volume and weight for driveways, paths, sub-base
🧱Materials
Bricks Required
Number of bricks for walls
Blocks Required
Concrete blocks for walls
Plaster Bags
Bags needed per m²
Mortar Mix
Sand, cement, lime quantities
Floor Tiles
Number of tiles including wastage
Wall Tiles
Tiles for bathrooms, kitchens, feature walls
Paint Quantity
Litres needed for walls/ceilings
Wallpaper Rolls
Rolls needed including pattern repeat
Carpet & Flooring
Rolls, joins, wastage, and cost
Insulation Boards
PIR boards, mineral wool quantities
Damp Proof Course
DPC quantities and basic height guidance
Drywall / Plasterboard
Sheets for walls and ceilings
Grout (Tiles)
Grout quantity for tiled surfaces
Drywall Compound & Tape
Joint compound and tape for finishing
Timber Quantity
Pieces, linear metres, volume for framing
⚡Structural
💰Costs & Conversions
Project Cost Estimator
Materials + labour + VAT total
VAT Calculator
Add/remove VAT for quotes
Sq Metre Pricing
Price per m² comparison
Markup Calculator
Selling price, markup vs profit margin
Labour Cost
Days, hours, rates, and overtime
Material Cost
Total cost with wastage and trade discounts
Linear Metres Converter
Metric/imperial length conversions
Imperial/Metric Converter
Length, area, volume, weight, temperature
Weight Conversions
Metric/imperial weights and bag quantities