Card grading cost is quoted as a per-card fee and paid as four separate things. Two of them scale with how many cards you send and two do not, which is why the same fee produces wildly different costs per card depending on the size of the submission. Here is what each line is and where it comes from.
The fee, and what sets it
Graders publish service levels tiered by the declared value of each card, and you must use the tier your declaration falls into. Within a tier the fee is fixed per card. It covers the examination, the holder and the certification record, and it is charged whatever grade comes back, which is the fact the whole decision turns on.
The extras, charged per card
Oversized cards, authentication of an autograph, reholdering a card already slabbed, and expedited turnaround are all priced on top of the base fee and almost always per card. They are easy to tick and easy to forget when costing, and on a large submission they can quietly exceed the base fee itself.
The two postage legs, charged per submission
You pay to send the package insured and the grader charges you for an insured return. Neither scales with the number of cards, so both fall as a share of the cost as the box fills. This is the whole reason a two-card submission is expensive and a thirty-card one is not, and it is the lever most within your control.
What to do with the total
Divide by the number of cards and you have the hurdle each card must clear by being graded rather than left raw. Carry that figure into the uplift calculator alongside the raw and graded prices you read from completed sales, and the answer comes out with a sign in front of it.
Questions people ask about card grading cost
Why does this site not list each grader's prices?
They change, they are the graders' own to publish, and one major grader's service page refuses our reader outright, which we record rather than work around. The calculator takes the fee as an input.
Is there a membership fee as well?
Some graders require a membership or offer submission allowances with one. If yours does, spread that cost across the cards you expect to send in the period and add it to the extras line.
Do bulk rates exist?
Graders run bulk tiers with minimum card counts and value caps. They lower the fee, not the postage, so they help most on exactly the submissions where postage is already well shared.
What if a card is rejected?
Rejection handling varies and the fee generally is not refunded in full. It is another reason to be conservative about which cards go in the box.