What Is a Good LEGO Part-Out Ratio?

A good part-out ratio for LEGO sets is generally 2 to 3 times what the set would sell for whole, sealed or built. That means if a set's minifigures, rare parts, and other pieces add up to more than double or triple what a buyer would pay for the complete set, breaking it down is usually worth the extra listing time. Below that range, most resellers are better off selling the set as one unit and moving on to the next box in the pile.

I've sorted through hundreds of bulk lots over the years, and the "what's a good ratio" question comes up in almost every reseller group I'm in. There's no single number that works for every set, but from what I've seen, resellers generally treat anything under 1.5x as a pass, 2x to 3x as worth the effort, and anything north of 4x as a set you prioritize first out of a haul.

• A part-out ratio compares total piece-by-piece resale value to what the set would sell for whole.
• Most experienced resellers want to see at least 2x to 3x before committing the time to break a set down.
• Minifigures usually drive the ratio more than bulk parts do.
• Condition, completeness, and current sold pricing all move the number, so it has to be recalculated set by set, not assumed from memory.

What Is a LEGO Part-Out Ratio, Exactly?

A part-out ratio is the total resale value of everything inside a set, its minifigures, rare or exclusive parts, and sometimes the box and manual, divided by what you'd get selling that same set whole. If the individual pieces add up to $90 in total sales and the whole set sells for $30, the ratio is 3 to 1, meaning parting out returns three times as much as selling it intact.

In my experience, this is the single most useful number for deciding what to do with a mixed lot. I use BrickLink for almost every part-out price check because it functions like the Wall Street of LEGO for individual pieces. Sold listings there tend to reflect what collectors and builders are actually paying for a given minifigure or part, not just what someone is hoping to get, which is why I never rely on active asking prices alone when I'm running the numbers.

What Counts as a Good Part-Out Ratio?

Most sellers I know treat 2x to 3x as the baseline worth pursuing, since that covers listing time, packaging, and platform fees while still leaving solid margin. Ratios above 4x, which usually come from sets carrying one or two standout minifigures, are the ones experienced resellers prioritize first when they're working through a big haul.

A ratio under 1.5x almost never justifies the time. By the time you photograph, list, package, and ship a dozen small parts for barely more than the set would have sold for whole, you've usually made less per hour than if you'd just flipped the set as-is on Whatnot or eBay. I'd rather move fast on the low-ratio sets and spend my actual sorting time on the ones with real separation between parts value and whole-set value.

How Do You Calculate a Set's Part-Out Value?

You calculate part-out value by identifying every minifigure and unique or rare part in the set, looking up recent sold prices for each one, and adding them together. Compare that total to what the set realistically sells for whole on a marketplace like eBay or Whatnot, then divide the parts total by the whole-set price to get your ratio.

The steps I actually use when I sort a new lot:

• Pull every minifigure out first and check current sold values, since figures usually carry the most weight in the ratio.
• Flag any exclusive, printed, or retired parts that aren't common in bulk bins.
• Check completeness. A missing torso or a swapped-out head can quietly tank the value of an otherwise strong figure.
• Add up the parts total, then compare it against what the whole set sells for in similar condition.

Running this by hand on every set gets old fast, which is part of why brick'em's haul calculator exists. It's built to speed up exactly this kind of math on a full bulk lot instead of one set at a time. When I only need to sanity-check a single figure's value, I'll pull it up in brick'em's minifigure database rather than digging through marketplace listings manually.

Which LEGO Sets Tend to Have the Best Part-Out Ratios?

Sets tend to have the best part-out ratios when they include exclusive or highly demanded minifigures, since character-driven demand from themes like Star Wars, Marvel, and Ninjago usually outpaces what a generic bulk part would sell for. Modular buildings can also produce strong ratios because of unique printed parts, though they cost more to acquire in the first place.

In my view, City sets are the opposite case. City minifigures rarely sell for more than $2 each, so even a full set of City figures usually can't out-earn what the built set would fetch on its own. I generally steer new resellers away from prioritizing City for part-out purposes and toward theme lines with more built-in character demand instead.

Harry Potter is another one I'd flag as overrated for fast part-out flips. It's not especially liquid, and figures from that theme tend to sit longer, so I'd rather list those pieces on BrickLink where patient buyers are searching for exact figures than expect a quick sale on a live platform.

When Should You Part Out a Set Instead of Selling It Whole?

Part out a set when its ratio clears roughly 2x to 3x, when it's missing its box or instructions in a way that hurts whole-set value more than parts value, or when one or two individual minifigures are worth close to what the entire set would sell for on their own. Otherwise, selling it whole is usually faster and still profitable.

Incomplete sets are actually a good example of an underrated situation. A lot of the used and older sets people bring me aren't 100% complete, and instead of writing those off, I'll check BrickLink for stores selling the specific missing pieces I need to finish out a figure or set before deciding whether to part it out or complete it for resale. A set that looks like a lost cause built can still have a strong ratio once you separate what's actually inside it.

Common Mistakes That Wreck Your Part-Out Ratio

The most common mistake is pricing parts off active asking prices instead of actual sold prices, which inflates the ratio and leads to overpricing that never sells. The second most common mistake is ignoring platform fees when comparing options, since fee structures vary enough between marketplaces to flip a decision from "part out" to "sell whole."

• Using asking prices, not sold prices. Listed prices are aspirational. Sold prices tell you what buyers actually paid.
• Ignoring fees in the comparison. On eBay, promoted listings can push your effective take rate close to 25% once you add in the fees needed to get real visibility on a listing, which eats into the part-out side of the math faster than people expect.
• Skipping the completeness check. A figure missing one printed part can lose most of its value even if every other piece is present.
• Forgetting manuals and boxes. Most manuals aren't worth much, often in the $2 to $5 range, but a manual for a rare or retired set can occasionally bring $300 or more, so it's worth a quick check before tossing one.
• Underpricing your own time. A seller I know tracks hours spent sorting against dollars earned per lot, and it changed which sets they bother parting out at all.

Part-Out Ratio Cheat Sheet

Here's the quick reference I use when I'm sorting through a new lot and need to decide fast:

Ratio Range	What It Means	Recommended Action
Below 1.5x	Parts barely beat whole-set value	Sell the set whole
1.5x to 2x	Marginal, depends on your time and fees	Case by case
2x to 3x	Solid, standard part-out territory	Worth breaking down
3x to 4x	Strong separation, usually figure-driven	Part out and prioritize sorting
Above 4x	Exceptional, often one standout minifigure	Part out first, before other lots

Where Should You Sell the Parts Once You've Decided to Part Out?

Minifigures generally do best on eBay and Whatnot, where character-driven demand and broad buyer traffic move them quickly. Individual parts and low-dollar pieces tend to do better on BrickLink, where sellers are more willing to ship a $3 to $5 item because BrickLink's fees are lower than what eBay sellers usually need to justify shipping something that cheap.

I personally split my parting-out sales this way: figures go up on Whatnot or eBay depending on how fast I want cash back, and leftover parts, especially anything under $5, go straight to BrickLink listings. I've sold over $100,000 worth of LEGO on eBay over the years, and the pattern has been consistent the whole time. High-value individual pieces move fast on eBay and Whatnot; the long tail of cheaper parts moves better on BrickLink, where buyers are already searching for exact items instead of browsing.

If you're clearing out mixed lots that don't seem worth parting out at all, Facebook Marketplace is worth a look too, especially for bulk bundles where you'd rather skip platform fees entirely and let a local buyer take the whole box.

Frequently Asked Questions

Is parting out LEGO sets more profitable than selling them whole?

It depends on the set. When the part-out ratio clears roughly 2x to 3x, parting out is usually more profitable even after accounting for extra listing time. Below that range, selling the set whole is often the better use of your time, since the added labor of sorting and listing individual pieces eats into the smaller margin.

What's considered a bad part-out ratio?

A ratio under 1.5x is generally considered weak, since the extra time spent photographing, listing, and shipping individual pieces rarely earns back more than selling the set as one unit. In my experience, sets in this range are better flipped whole and quickly rather than broken down.

Do minifigures or bulk parts drive part-out value the most?

Minifigures usually drive part-out value more than bulk parts do, since character and story demand from themes like Star Wars and Marvel pushes individual figure prices well above what generic parts fetch. Rare printed parts can matter too, but figures are typically the larger share of a strong ratio.

How do I calculate part-out value without doing it all by hand?

You can speed up the math with a spreadsheet or a purpose-built tool instead of pricing every piece manually. brick'em's collection value calculator and haul calculator are built for exactly this, letting you check part-out value across a full lot instead of one set at a time.

Is it ever worth parting out a sealed set?

Occasionally, but it's less common. Sealed sets tend to hold and appreciate in value well on their own, so unless a sealed set contains an exceptionally rare exclusive minifigure, most resellers I know are better off keeping it sealed and selling it whole rather than opening it to part out.