Estimate the cable length for a wiring job from the number of circuits, the average run distance, and the number of outlets and switches with their drop lengths. Pick a circuit type to see a suggested cable size. This is an approximate estimate; electrical work must be carried out by a licensed electrician and comply with local wiring regulations, so the tool is for estimating only. All processing runs locally in your browser. Your data is not uploaded to any server. 100% Local
Choose your units and a circuit type, then enter the number of circuits, the average run per circuit, the number of outlets and switches, the drop length for each device and a wastage allowance. Press Estimate cable to see the cable length and a suggested cable size.
Cable size, breakers and installation methods are set by wiring regulations and depend on the load and the route. Use the suggestion here as a rough guide only, and have the design and the work done by a licensed electrician.
Always get a qualified electrician to confirm the design, the protective device and the test certificates before any circuit is energised.