How much do you need?

Metric calculators for home and garden projects in the UK, Ireland, Australia and New Zealand. Measure in metres, get litres, m², m³ and bag counts.

Measuring in feet and inches? Use the US calculators

Yard & garden

Cubic metre calculatorWork out cubic metres and litres for soil, mulch, gravel, sand or concrete from length, width and depth. Also shows cubic yards.
Mulch calculatorCalculate how much mulch or bark you need for a garden bed in cubic metres, litres and bags. Enter length, width and depth in metres and cm.
Gravel calculatorCalculate how many tonnes and cubic metres of gravel, shingle or chippings you need for a path, patio or driveway.
Raised bed soil calculatorWork out how much topsoil or compost fills your raised beds, in litres, bags and cubic metres, with extra for settling.
Turf calculatorCalculate how many square metres and rolls of turf you need for a new lawn, with extra for trimming around edges.
Paving slab calculatorEstimate how many paving slabs you need for a patio, plus the sub-base and bedding, from patio size, slab size and joints.
Pool volume calculatorCalculate pool volume in litres and cubic metres for rectangular, round and oval pools, plus how long it takes to fill.

Concrete calculatorCalculate how much concrete you need for a slab, shed base or path in cubic metres, and how many bags of ready-mix to buy.
Postcrete calculatorWork out how many bags of postcrete or post-fix concrete you need to set fence posts, from hole size, depth and post size.
Concrete column calculatorCalculate concrete for round columns, piers and footings poured in form tubes, in litres, cubic metres and bags.
Brick calculatorCalculate how many bricks you need for a wall in UK or Australian standard bricks, single or double skin, including 10 mm mortar joints.

Square metre calculatorCalculate square metres for a rectangle, circle or triangle, with square feet and an optional cost estimate per m².
Paint calculatorWork out how many litres and tins of paint you need for a room, allowing for doors, windows, coats and the ceiling.
Plasterboard calculatorCalculate how many sheets of plasterboard (drywall) you need for a room’s walls and ceiling, in 2400 × 1200 and other common sizes.
Flooring calculatorWork out how much laminate, vinyl or wood flooring to buy, including waste, in square metres and packs.
Tile calculatorCalculate how many tiles and boxes you need for a floor or wall in metric sizes, including grout joints and waste.
Wallpaper calculatorWork out how many rolls of wallpaper you need for a room in metres, allowing for doors, windows and pattern matching.
Skirting board calculatorCalculate how many metres of skirting board or coving you need for a room, and how many lengths to buy.

Decking calculatorCalculate how many decking boards and screws you need from deck size, board width, gap and board length, in metric.
Fence panel calculatorCalculate how many fence panels, posts, gravel boards and bags of postcrete you need for a straight run of fence.

Electricity cost calculatorCalculate the cost to run any appliance per day, month and year from its wattage, hours of use and your price per kWh, in any currency.