DIY & Tools Calculators & Planners

Paint Calculator

Work out how many litres of paint and how many coats you need for a room.

Extension Lead Load Calculator

Check whether the appliances you want to plug into an extension lead exceed its safe amp rating.

Ladder Height Calculator

Work out the right ladder length and safe base distance for the height you need to reach.

Circular Saw Cutting Depth Calculator

Work out the maximum cutting depth for a circular saw based on its blade diameter.

Pipe Lagging Calculator

Work out how many pipe insulation (lagging) tubes you need for your total pipe run.

Power Drill Battery Runtime Calculator

Estimate how long a cordless drill battery will last based on its capacity and typical power draw.

Sealant Coverage Calculator

Work out how many cartridges of sealant you need for your total bead length and width.