Lay out lights
Lighting Planner
Compare fixture count, wall offsets, spacing and coverage before cutting ceiling holes.
Open this toolWhat are you trying to do?
Six direct tools for the thing in front of you: a room, a wall, conduit, wiring, electrical numbers or a tape mark.
Lay out lights
Compare fixture count, wall offsets, spacing and coverage before cutting ceiling holes.
Open this toolThe field index / 01–06
You do not need to know which calculator you need. Match the room, wall, conduit, colour, electrical value or measurement in front of you.
Room dimensions, fixtures, spacing and coverage.
Output / count, offsets, coverage 02Screen size, eye level, sightline and wall position.
Output / centreline, top and bottom 03Conduit shape, marks, spacing, shrink and order.
Output / field marks and sequence 04Resistor bands, RJ45 pinouts and thermostat terminals.
Output / plain-English reference 05Volts, amps, watts, resistance and phase relationships.
Output / linked values and proof 06Tape marks, decimals, millimetres, splits and spacing.
Output / exact trade measurementNeed a human eye?
Planning aids only. Verify field conditions, equipment instructions and applicable code requirements before installation.