Cinder Block Calculator

Calculate exactly how many cinder blocks you need for your project

Wall Length ft

Wall Height ft

Block Length inches

Block Height inches

Mortar Thickness inches

Waste Percentage %

• Standard cinder block dimensions are 16″ long × 8″ high × 8″ wide

• Always add 5-10% extra blocks for waste, cuts, and mistakes

• This calculator accounts for mortar joints in the calculations

• For walls with openings (doors, windows), subtract their area from total wall area

cinder block calculator

concrete block calculator

cmu block calculator

how many cinder blocks do i need

cinder block estimation tool

block wall calculator