Brick Calculator for Wall Volume and Mortar
Estimate brick counts, wall volume, mortar joints, mortar volume and waste margin for masonry construction planning.
Estimation Inputs
Net masonry volume after openings.
Actual brick length.
Actual brick width.
Actual brick height.
Thickness of mortar bed and joint.
Allowance for cuts and breakage.
Pricing & Rates
Price per purchase unit used by this calculator.
Applied to the estimated purchase quantity.
Use 0 if tax is not applicable.
Quantity Takeoff
single Brick Volume
0.001539
nominal Brick Volume
0.002
raw Bricks
500
bricks With Waste
550
Formula Trace
Actual Single Brick Volume:
Brick Length * Width * Height
0.190 m * 0.090 m * 0.090 m
= 0.002 m³
Nominal Brick Volume (incl. Joint):
(Brick Length + Joint) * (Width + Joint) * (Height + Joint)
(0.190 m + 0.010 m) * (0.090 m + 0.010 m) * (0.090 m + 0.010 m)
= 0.002 m³
Raw Brick Count:
ceil(Net Wall Volume / Nominal Brick Volume)
ceil(1.000 m³ / 0.002000 m³)
= 500.000 pcs
Bricks with Waste:
ceil(Raw Bricks * (1 + Wastage % / 100))
ceil(500 * (1 + 10.0 / 100))
= 550.000 pcs
Mortar Volume Needed:
Wall Volume - (Raw Bricks * Actual Brick Volume)
1.000 m³ - (500 * 0.001539 m³)
= 0.231 m³
Estimate Outcome
Calculation guide and formulas
Use this brick masonry calculator to estimate brick or block quantities and mortar needs from wall volume, brick size, joint thickness and waste percentage.
Understand the units, allowances and purchase rounding (English).
Worked example
A 1.0 m³ wall using 190 × 90 × 90 mm bricks with 10 mm joints has a nominal brick volume of 0.002 m³ and needs about 500 bricks before waste.
Frequently asked questions
Q: What is nominal brick size?
A: Nominal brick size includes the mortar joint. A 190 × 90 × 90 mm brick with a 10 mm joint becomes 200 × 100 × 100 mm nominal size.
Q: How much brick waste should I allow?
A: Use 8% to 10% for normal masonry work. Complex corners, transport breakage and cuts can require more.