If you've got a tub of loose, mixed LEGO and want a sense of what it's worth before you sell, the key thing to understand is simple: loose LEGO is sold by weight. Here's how that works in practice.
Why loose LEGO is sold by weight
When bricks are all mixed together with no sets to identify, weighing is the fair and fast way to price them. It means you don't have to sort, count, or identify anything — the scales do the work. A price-per-kilo is applied to the total, and that's your figure for the bulk.
What does a "tub" actually weigh?
It varies hugely, but as a rough guide:
- A standard household storage tub of LEGO often comes in somewhere around 5–15 kg when fairly full.
- A big under-bed box can be 20 kg or more.
- A couple of ice-cream tubs might be 1–3 kg each.
The easiest way to know is to pop it on the bathroom scales (weigh yourself holding it, then subtract your own weight — accurate enough for a quick estimate).
What lifts a tub above the basic weight price
The by-weight rate covers ordinary mixed bricks. Your tub can be worth more if it also contains:
- Minifigures — often pulled out and valued separately because they're worth more.
- Complete or sealed sets mixed in — valued individually on top.
- Rare or licensed pieces.
So it's worth a quick rummage to fish out the figures and any intact sets before you weigh the rest.
Get a price for your tub
Weigh it roughly, flag any sets or minifigures, and get an instant valuation — no need to tip it all out and sort it first.