Rex says
The fast lane for the math you almost remember from school. Type the numbers, get the answer, move on with your day.
Try a scenario
Click to load — tweak from there.Inputs
Result
EV per pack
$5.55
EV for the box
$199.80
Box cost
$198.00
Expected ROI
0.9%
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One click, a permanent link with your numbers baked in.
How to use this
- 1Enter pack cost ($).
- 2Enter cards per pack.
- 3Enter chase card hit rate (1 in N packs).
- 4Enter chase card value ($).
- 5Enter avg value of non-hits ($/card).
- 6Enter packs opened.
- 7Read your ev per pack on the right — it updates as you type.
- 8Hit Share to keep the scenario or send it to someone.
About this calculator
Hit rates times hit values, spread across the pack cost. Tells you whether ripping or buying singles is smarter.
Worked example
Using the values the calculator loads with:
Inputs
- Pack cost: 5.5 $
- Cards per pack: 10
- Chase card hit rate: 24 1 in N packs
- Chase card value: 90 $
- Avg value of non-hits: 0.18 $/card
- Packs opened: 36
Results
- EV per pack: $5.55
- EV for the box: $199.80
- Box cost: $198.00
- Expected ROI: 0.9%
What each field means
Inputs
- Pack cost ($)
- The pack cost used in the calculation, measured in $. Starts at 5.5 $ so you have a working example on load.
- Cards per pack
- The cards per pack used in the calculation. Starts at 10 so you have a working example on load.
- Chase card hit rate (1 in N packs)
- The chase card hit rate used in the calculation, measured in 1 in N packs. Starts at 24 1 in N packs so you have a working example on load.
- Chase card value ($)
- The chase card value used in the calculation, measured in $. Starts at 90 $ so you have a working example on load.
- Avg value of non-hits ($/card)
- The avg value of non-hits used in the calculation, measured in $/card. Starts at 0.18 $/card so you have a working example on load.
- Packs opened
- The packs opened used in the calculation. Starts at 36 so you have a working example on load.
Results
- EV per pack
- Returned as a money amount in US dollars and shown as the headline result. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
- EV for the box
- Returned as a money amount in US dollars. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
- Box cost
- Returned as a money amount in US dollars. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
- Expected ROI
- Returned as a percentage. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
FAQ
How does the trading card pack ev calculator work?
Hit rates times hit values, spread across the pack cost. Tells you whether ripping or buying singles is smarter.
What do I need to enter?
6 values: pack cost, cards per pack, chase card hit rate, chase card value, avg value of non-hits, and packs opened. Each field starts with a sensible default, so you can change one number at a time and watch the result move.
What does the ev per pack result mean?
It is returned as a money amount in US dollars and updates live as you edit the inputs, so you can compare two or three versions of a scenario in a few seconds.
Is this calculator free, and do I need an account?
Yes, it's free, and no account is required. Nothing you type is stored on our servers — the maths runs entirely in your browser.
How accurate is the result?
It applies the standard formula exactly, so the arithmetic is precise. Results are rounded for display; the underlying calculation keeps full precision.
Who is this tool for?
It's built for students, developers, and anyone who needs the answer right now without setting up a spreadsheet.
Accuracy and limitations
- Results are rounded for display; the underlying calculation keeps full precision.
- Very large or very small inputs may hit floating-point limits in the browser.
- Inputs outside the accepted range are clamped rather than rejected.
Related tools
Cite this calculator
Writing about this topic? Grab a citation — every link helps keep these tools free.
RevenueLab. (2026). Trading Card Pack EV Calculator. Retrieved from https://www.revenuelab.fyi/toolbox/trading-card-pack-ev
<p>Source: <a href="https://www.revenuelab.fyi/toolbox/trading-card-pack-ev" target="_blank" rel="noopener">Trading Card Pack EV Calculator — RevenueLab</a> (2026).</p>
Source: [Trading Card Pack EV Calculator — RevenueLab](https://www.revenuelab.fyi/toolbox/trading-card-pack-ev) (2026).