The short answer
Three ways, in order of how much you should trust them. Measure the stack: 100 modern cards are about 3 centimetres, so a 30 centimetre row is roughly 1,000. Weigh it: a modern card is about 1.7 grams, so a kilo is around 590 cards. Count one hundred and multiply.
Never accept "a big box" or a photo as a count. Every price in bulk is per card, so a lot without a number is a lot without a price.
This is the step people skip, and it is the one that decides whether the deal was good. Here is how to do it in five minutes standing in front of a stranger's box.
The finger test, and what it is really for
The old trade shortcut is to fill a 550 count box and see if you can still get a finger in. If you can, it is around 500 cards. If you cannot, it is closer to 550 and possibly over.
It is not precise and it is not supposed to be. It exists so that two people can agree on a number in a parking lot without counting, and it is accurate to within about 10%, which is fine at three cents a card and not fine at thirty.
The three methods, with their error
| Method | How | Typical error |
|---|---|---|
| Measure the stack | 100 cards is about 3 cm; measure in centimetres and multiply | 5% to 10% |
| Weigh it | A modern card is about 1.7 g; subtract the box | 5%, less with a good scale |
| Count 100 and extrapolate | Count one hundred, measure that stack, scale up | Under 5% |
| Count everything | Only worth it above about 20 cents a card | None, and it takes hours |
Sleeved cards break all of this. A penny sleeve adds roughly a third to the thickness, so a sleeved stack measured as loose cards overstates the count badly. Ask before you measure.
What changes the number that is not the count
Energy cards are the classic filler. A lot that is 20% basic energy is not the lot you thought you were buying, and energies are worth close to nothing individually.
Ask three things before agreeing a price: how much basic energy is in there, what era it covers, and what has already been pulled. We wrote up how to spot a picked lot separately, and it is the question that moves the price most.
Count before you look at the cards
Do the count first, while you are still uninterested. Once you spot something good in the box your judgement about the other 999 cards changes, and the number you agree to drifts upward without you noticing.
Professional buyers do this in the same order every time for exactly that reason: measure, ask the three questions, quote, and only then start looking through it properly.
Then price it per card
Once you have a count, the price is arithmetic. Unsorted modern runs 1 to 5 cents, sorted reverse holo 5 to 15. Our own last lot came in at $0.08 a card, and the going rates by type are here.
A thousand cards at 3 cents is $30. The same box at 5 cents is $50. That is the whole negotiation, and you cannot have it without a number.
Write it down in front of them
Say the count out loud, say the rate, say the total. It sounds obvious and it prevents most disputes, because the seller who thought their box held 3,000 cards finds out it holds 1,800 while you are both looking at the same tape measure.
If a seller refuses to let you measure, that is your answer about the lot.
Frequently asked questions
- How do you count a large lot of Pokémon cards?
Measure the stack: 100 modern cards are about 3 cm, so 30 cm is roughly 1,000. Or weigh it, since a modern card is about 1.7 g. Counting one hundred and extrapolating is the most accurate quick method.
- What is the finger test for card boxes?
Fill a 550 count box and see whether a finger still fits. If it does, roughly 500 cards; if not, closer to 550. It is accurate to about 10%, which is fine at three cents a card.
- Do sleeves change the count?
Yes, significantly. A penny sleeve adds roughly a third to the thickness, so measuring a sleeved stack as loose cards overstates the count badly.
- What should I ask before agreeing a price?
How much basic energy is in the lot, what era it covers, and what has already been pulled out. Energy is filler and picking changes the value more than the count does.
Counting is the cheap part. Cataloguing what you bought is the part that eats the evenings, and there the machine matters more than the method: we compared the real options in the best scanner for trading cards.
