Recessed Lighting Calculator

Calculate recessed light spacing and quantity needed.

Room Length (ft)

Room Width (ft)

Ceiling Height (ft)

Formula

Spacing = Ceiling Height / 2; Lights = Rows x Columns

How far apart should recessed lights be?

Space recessed lights at half the ceiling height apart.

How far from the wall should recessed lights be?

Place recessed lights about 2 to 3 feet from the wall.

Calculate the lumens needed for a room by purpose.

Calculate landscape lighting fixtures and total wattage.