Sumivo · Construction

Concrete Block Calculator

Calculate the number of blocks needed for a wall, including a waste allowance.

01 / inputs

m
m
%

02 / result

BLOCKS NEEDED

275

Blocks needed
275
Block face area
0.08 m²

Calculation trace

  1. 0.4 m × 0.2 m = 0.08 m²
    0.08 m²
    Block face area
  2. ceil((20 m² × (1 + 10 ÷ 100)) ÷ 0.08 m²) = 275
    275 blocks
    Blocks including waste
§

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