LEGO Dimensions Converter
Official LEGO System geometry, from the 1.7 mm stud to the 384 mm baseplate. Pick any two.
Visual comparison
All values
Click any row to load it as Entry A.
| Name | Value | Context | Source |
|---|---|---|---|
| Stud pitch (center to center) The foundation of everything. | 8 mm | LEGO System grid | LEGO geometry refs: 8 mm |
| Stud diameter Same as Technic pin diameter. | 4.8 mm | Clutch power cylinder | LEGO geometry refs: 4.8 mm |
| Stud height Not counted in brick height. | 1.7 mm | On top of bricks | LEGO geometry refs: 1.7 mm |
| Brick height Exactly 3 plates. | 9.6 mm | Standard brick, no stud | LEGO geometry refs: 9.6 mm |
| Plate height One third of a brick. | 3.2 mm | Standard plate, no stud | LEGO geometry refs: 3.2 mm |
| Bar diameter Same as plate height. | 3.2 mm | Lightsaber bars, antennas | LEGO geometry refs: 3.2 mm |
| Technic pin diameter Same as stud diameter. | 4.8 mm | Friction pins | LEGO geometry refs: 4.8 mm |
| Minifigure height Roughly 1:42 scale. | 40 mm | Standard minifig | LEGO refs: 4 cm |
| Baseplate 32x32 side 32 studs at 8 mm pitch. | 256 mm | Classic baseplate | LEGO refs: 25.6 cm |
| Baseplate 48x48 side 48 studs at 8 mm pitch. | 384 mm | Large baseplate | LEGO refs: 38.4 cm |
About this converter
LEGO geometry is exact engineering. Studs sit on an 8 mm grid, bricks rise 9.6 mm without the stud, plates are exactly a third of that at 3.2 mm, and the minifigure stands 4 cm. Those ratios are why five bricks stack to the same height as six studs span wide. Every figure here is the published System dimension from builder references and catalogs, with the classic ratios noted so builders can plan in studs and buy in millimeters. A 48x48 baseplate at 384 mm is exactly 1.5 times the 256 mm side of a 32x32, and a 40 mm minifigure stands on studs just 1.7 mm tall. All figures are LEGO's published millimeter specs, so plates, bricks and figures share one measuring stick.
How to use it
Pick two dimensions and a unit in the top row. The three boxes below stay linked: one holds a count of the first, one the matching count of the second, one the size in the chosen unit. Change any box and the other two update. Try 1 baseplate against minifigures.
Duplo runs on a different, larger grid and stays out of this System-only table. Studs are never counted in brick or plate heights.
FAQ
How big is a LEGO stud?
8 mm pitch center to center, 4.8 mm diameter, 1.7 mm tall.
How tall is a LEGO brick?
9.6 mm without the stud, exactly three 3.2 mm plates.
How tall is a minifigure?
4 cm, roughly 1:42 scale.
How big is a 32x32 baseplate?
25.6 by 25.6 cm, 32 studs at 8 mm pitch.
Sources
- LEGO System geometry references (Brick Owl stud dimensions, Brighton Toy Museum)
- Builder converter cross-checks (legoconverter, bricksly scale data)
Last verified: 2026-09-27 · 10 entries
More creature sizes converters
Godzilla and Kaiju Size Converter (Height Comparison)
How big is Godzilla? Compare 16 kaiju heights: Monsterverse Godzilla, Kong, Ghidorah, Shin Godzilla and more. Meters, feet and visual bars.
Aircraft Carrier Length Comparison (Overall Meters)
Compare 13 aircraft carrier overall lengths: Juan Carlos 231 m, De Gaulle 261, Queen Elizabeth 284, Fujian 316, Ford 333. Official navy figures in one table.
Airliner Length Comparison (Widebody Meters)
Compare 8 widebody airliner lengths in meters, from the A330neo at 63.69 m to the 777-9 at 76.72 m. Maker spec figures in a linked tool. for fans today.
← Legends of Tomorrow Episode Count Comparison · LEGO Modular Building Piece Count Comparison (Official Sets) →