LEGO · Building, buying and selling
LEGO calculators for buyers and builders.
Price a loose bulk lot by weight, convert studs to inches and scale sizes, compare boxed sets by cost per piece, and plan a studded mosaic. Every figure comes from a source named on the page, and every price is one you type.
LEGO Bulk Lot Value Calculator
Weigh a 50-part sample to estimate pieces, then see price per pound, kilo and piece with minifigure value taken out.
LEGO Stud and Scale Converter
Feet, inches, metres or mm to studs, bricks and plates high at full size or any scale, and back.
LEGO Price per Piece Calculator
Rank up to four sets by cost per piece, with tax and a deduction for extras.
LEGO Mosaic Size and Cost Estimator
Pieces with spares, finished size, baseplates, weight and cost for a studded picture.
LEGO Display Shelf Calculator
Items per shelf and in total from shelf width, depth and height and the size of a set or box, with a weight check.
Where the numbers come from
Part weights come from BrickLink catalogue entries and the sampling method from a Eurobricks thread. Stud spacing and brick heights come from the LDraw.org file format specification, which calls its real-world figures approximations. Price per piece follows the way Brickset shows it on set pages. All are fan-made tools, not affiliated with the LEGO Group. Related: the unit price comparison calculator and the miniature scale converter.
Where the numbers come from
Set box sizes and weights come from Brickset set pages and shelf ratings from the shelf maker, for example IKEA. The 15 to 20 sets figure is one Eurobricks poster's experience. Fan-made, not affiliated with the LEGO Group; LEGO is a trademark of the LEGO Group. Related: the shelf spacing calculator.