Interactive Wattage Calculator

Lighting Wattage Calculator

Estimate how much light (in lumens) and how much power (in watts) a room needs. Enter the room type and dimensions and the calculator does the rest — a quick starting point before you choose fittings.

These figures are general guidance based on typical recommended illuminance levels for Australian homes (broadly in line with AS/NZS 1680). Actual requirements vary with ceiling height, wall colour, task and fitting type, so treat the result as a starting estimate rather than a lighting design. For a specific project, get in touch.