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Free calculators for the trades

How much concrete, paint, tile or brick, and what is the VAT? Type the sizes on site and know what to ask for at the merchant’s: m³, bags, tins and boxes, ready to copy into a quote.

• Concrete calculator

  Slabs, footings, post holes and steps: m³, bags, ready-mix or a 1:2:4 site mix.

  Work it out

• Paint calculator

  Walls, ceiling, coats and coverage: the litres, and the tins to buy.

  Work it out

• Tile calculator

  Tiles and boxes with cuts allowed for, plus adhesive and grout in kg.

  Work it out

• Brick & block calculator

  Bricks or blocks for a wall, the mortar, cement bags and sand.

  Work it out

• VAT calculator

  Add VAT or take it out: UK, Irish and Canadian rates, net and gross.

  Work it out

Metric first, with feet and inches when you need them. The results are estimates: check the sizes, and the figures on the bag, before you order.