How to calculate brick in cubic meter:

10 mm mortar are consider

Step1: normal brick size 230 mm × 100 mm×75 mm

Step2: formula number of bricks in 1 cubic meter = 1/ volume of brick

Step3: calculated 1÷ 240 × 110× 85 

Converting mm to meter

Step4: 1÷ 0.24× 0.11× 0.085

Step5 :  445 brick in cubic meter with 5℅ wastage