SlabbyPrep
Free calculator · Sports cards

Is grading sports cards worth it?

For a rookie, a vintage star or a numbered parallel, the answer is the same arithmetic: what it sells for raw, what it sells for at the grades it can reach, the fee at the company you'd use, and the centering. Enter them; the calculator gives the expected value after each company's fee and picks the cheapest tier whose value cap covers the card.

What's different about sports cards

  1. Value caps decide the tier. Companies price by declared value: PSA's Standard tier covers cards up to $1,000, Priority to $1,500, Express to $2,500, and so on; SGC and TAG scale the same way. The calculator declares the best-case grade price and picks the cheapest eligible tier, so a card worth $3,000 as a 10 is costed at the tier that accepts it, not the cheapest one on the price list.
  2. Vintage has two homes. PSA and SGC are both common for pre-1980 cards, and their lines differ: SGC publishes front-only figures (Pristine 50/50, Gem 55/45), PSA adds a back requirement (75/25 for a 10). Enter each company's graded prices for the card and let the numbers choose.
  3. Rookies and parallels live on the 10. On modern rookies and numbered parallels the 10 premium is most of the upside; the centering measurement is the first filter, because a card outside a company's 10 line is not a 10 there.
  4. Same card, same parallel, same year. Prices must be for the exact card and parallel. The links below the name box open eBay's sold listings for what you type; add "PSA 10" or "SGC 10" to see graded sales.

The full method, with the grade distribution and the fee-tier logic, is on the general calculator page. Lines and fees are as published on the dates shown on the Standards and Fees pages.

The centering you typed is a guess. SlabbyPrep measures it from a photo to a hundredth of a millimetre, checks front and back against every company's line, and runs this same calculation on the real number. $3 a month, cancel anytime, runs in your browser and photos never leave your device.
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Questions

Is it worth grading a rookie card?

When the expected sale price after grading beats the raw price by more than the fee. For a rookie that depends on how much a 10 sells for over a 9 and over raw, and on the chance of the 10, which starts with the centering. Enter the prices and the calculator runs it per company.

PSA or SGC for vintage sports cards?

Each company's 10 and 9 sell for different amounts and cost different fees, and their centering lines differ: SGC publishes front-only lines (Pristine 50/50, Gem 55/45), PSA adds a back requirement. Enter the graded prices for each company you'd consider; the calculator compares expected value after fees for your card.

What declared value should I use?

The calculator uses the best-case value: the price of the highest grade the card can reach. That is the figure that decides which tier a company will accept the card in, and higher tiers cost more. It is shown in each service's row.

How much does grading a sports card cost?

As published on the dates shown on the Fees page: from about $15 at BGS and $17 at CGC (bulk) to $59.99 for PSA's cheapest live tier, rising with value and speed to several hundred dollars. Shipping and insurance are extra.