Lego Brick Count Calculator

Work out lego brick count instantly with clear inputs, formula shown and shareable results.

About Lego Brick Count Calculator

Each layer covers length times width studs, so bricks per layer is that area divided by the studs on one brick, rounded up; a standard brick layer adds 9.6 mm of height. Counting in studs rather than bricks is what lets you swap 2x4 for 2x2 pieces without redoing the plan, and the 9.6 mm layer height gives a real model size.

Formulas

Bricks per layer

bricks per layer = ceiling(length studs x width studs / studs per brick)

Height

height = layers x 9.6 mm for standard bricks

Worked example

With the default values below, Lego Brick Count Calculator returns Bricks needed of 240. Change any input above and every figure here is recalculated in your browser.

Inputs used

Model lengthminimum 1 studs: 16 studs
Model widthminimum 1 studs: 8 studs
Number of layersminimum 1: 15
Studs per brickminimum 1: 8

Results

Bricks needed: 240
Bricks per layer: 16
Total studs covered: 1,920
Model height: 144.0 mm

Step by step

1Values used
2Bricks per layer
3Height
4Bricks needed= 240
5Bricks per layer= 16
6Total studs covered= 1,920
7Model height= 144.0 mm

Assumptions and limits

The result is derived only from the 4 inputs listed above. Anything not among them is not part of the calculation.
In particular, this calculator does not take inflation, tax, fees or charges or compounding frequency into account.
Figures are rounded for display to 1 decimal place, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.

How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.

Frequently Asked Questions

How is the Lego Brick Count figure worked out?

bricks per layer = ceiling(length studs x width studs / studs per brick). Each layer covers length times width studs, so bricks per layer is that area divided by the studs on one brick, rounded up; a standard brick layer adds 9.6 mm of height.

Why does this matter?

Counting in studs rather than bricks is what lets you swap 2x4 for 2x2 pieces without redoing the plan, and the 9.6 mm layer height gives a real model size.

What do I need to enter?

Enter model length, model width, number of layers, studs per brick. The defaults shown are a realistic worked example — swap in your own figures to get a result you can use.