The tool cupboard
Home measurement calculators
Quick recommendations for real rooms, backed by clear assumptions and practical examples.
Room plannerRug Size CalculatorFind a balanced rug size for a sofa, bed or dining table.Decorating plannerPaint CalculatorEstimate wall paint litres, including coats and waste.Decorating plannerWallpaper CalculatorEstimate wallpaper rolls, drops and pattern allowance.Window plannerCurtain Size CalculatorCalculate panel width, fullness and finished drop.Living-room plannerTV Size CalculatorMatch screen size to sofa viewing distance and style.Room plannerFlooring CalculatorCalculate flooring packs from room size, pack cover and waste.Decorating plannerTile CalculatorCount tiles for a floor or wall, with grout gap and waste.Decorating plannerSkirting Board CalculatorWork out skirting board length and the number of boards.Window plannerCurtain Drop CalculatorFind the right curtain length for floor, sill or below-sill finishes.Garden plannerGravel CalculatorTonnes and bags of gravel, MOT, sand or topsoil from area and depth.Area helperSquare Metre CalculatorArea in m², sq ft and sq yd for rectangles, circles, triangles and L-shapes.
Built for planning, not false precision
Every result is a sensible starting point. Product sizes, surfaces and room layouts vary, so each calculator shows what it assumes and what to check before you buy.
Need the measuring method first?
Our room guides explain where to place the tape, what to include, and how to test a size before ordering.