N NormalU UncommonR RareSR Super RareUR Ultra RareHR Holo Rare1-of-1 Secret
How to use: Click any set below to see its full breakdown. Use the Pack Math tab to calculate expected returns. Use Investment to track your collection value over time.
Pack Math Calculator
Calculate your expected card value from buying packs or boxes. Based on official One Piece TCG pack structure: 8 Normal, 2 Uncommon, 2 Rare, plus 1 foil hit (SR/UR/HR/1-of-1).
Inputs
Bulk/bundle discounts
Investment Tracker
Track your One Piece TCG collection investment. Log what you bought and watch its secondary market value change over time.
Add Purchase
Leave 0 to auto-estimate
Rarity & Value Guide
One Piece TCG uses a unique rarity system. Understanding it is key to smart purchasing and collection decisions.
Pro tip: 1-of-1 Secret Rares are the most sought-after cards in the game. Each set has 1-3 of these, and they can be worth $50-$200+ each. A single box can net you $200+ in 1-of-1 cards alone.
Set Comparison Tool
Compare multiple sets side by side to find the best value. Select up to 4 sets to compare.
Select Sets to Compare
One Piece TCG: Pack Math and Collection Value
The One Piece Card Game has grown into one of the most collected trading card games around, with alternate arts and secret rares driving a lively singles market. This calculator tracks values across sets, estimates pack return, compares sets side by side, and helps you follow your collection as prices shift with each new release.
How this calculator works
Pick a set to view current pricing by rarity, calculate a pack's expected value, compare the return across sets, and log cards into an investment tracker.
Rarity and where value lives
Cards run from common and uncommon through rare, super rare, and secret rare, with sought-after alternate art and manga-style parallels sitting at the top. As with any sealed product, a pack's expected value is the weighted average of every card it can contain, so most of a set's worth concentrates in a handful of chase cards. Leaders anchor every deck, so playable leaders and competitive staples tend to hold their value more reliably than cards that see little table time.
Worked example
You want a specific alternate-art card and a competitive leader for a new deck.
The pack expected value is spread thin across many commons with a small chance at the card you want.
To hit that one alternate art through packs, you would likely spend well past its single price.
The tool makes the gap clear, so you can buy the singles and put the savings toward the rest of the deck.
How to use it
Select the set you are opening or collecting.
Compare the pack's expected value to its price.
Use the set comparison to spot which releases hold the most value.
Log your cards and revisit to track appreciation.
Tips
Chase-card odds are low; if you want one specific card, singles almost always win.
Competitive leaders and staples resist price drops better than casual cards.
Sealed product can appreciate once a set goes out of print, so track it too.
Frequently asked questions
How many sets does it track? A broad range of current sets, with pack ROI for each.
Does it include alternate arts? Yes, premium variants are priced separately by rarity.
Is the expected value a promise? No, it is an average over many packs, not any single one.