How much should interior painting cost per square foot?
You can expect a 12x12-foot average room with 8-foot ceilings to cost $100 to paint, while a 16x16-foot room with 9-foot ceilings could cost around $175.
To calculate the cost of interior painting per square foot, measure the square footage of wall space and ceiling space of your room. From this, you can estimate the number of gallons of paint needed to cover the wall space and compare it to these figures. You can also ask interior painters near you to provide an estimate before you hire them.