dokkan calculator

What This Dokkan Calculator Does

This tool helps you answer one simple question: how ready am I for the next banner? You enter your current stones, how long you can save, and your average stone income. Then the calculator estimates your total stones, number of pulls, and probability of getting at least one featured unit (or multiple copies).

For planning, this is much better than guessing. Most players underestimate how many stones they can save with steady play, and overestimate how often “luck” will carry them. A good planner gives you realistic expectations before you summon.

How the Math Works

1) Stone Projection

The projected stone total is:

current stones + (days until banner × average stones per day) + event/login stones + purchased stones.

From there, the calculator assumes normal Dokkan costs: 5 stones per single summon and 50 stones per multi (10 summons).

2) Expected Featured Copies

If your featured rate is 5%, and you can do 200 summons, your expected featured copies are:

200 × 0.05 = 10 expected copies.

Expected value is a long-run average, not a guarantee. Some runs will be better, some worse.

3) Probability of Hitting Your Goal

The calculator uses a binomial model to estimate your chance of getting at least your target number of copies. This gives a practical risk estimate before you commit your stones.

How to Use It Effectively

• Use realistic daily income based on your own play habits.
• Adjust rates per banner type (Dokkan Fest, Carnival, Legendary Summon, etc.).
• Set a target (1 copy for collection, or more for hidden potential planning).
• Run multiple scenarios (free-to-play only vs. with sale stones).

Banner Planning Tips for Dokkan Battle

Prioritize Value, Not Hype

Big celebration banners often provide more total value than random filler banners. If your account is still growing, aiming for banners with stronger featured lineups can improve your box faster than chasing one favorite unit every month.

Track Coin Progress

Even if luck fails, summons usually build coin value over time. Planning with coin goals helps reduce frustration and gives your stones a long-term purpose.

Protect Your Floor

Set a minimum stone reserve you refuse to cross. A simple rule like “never go below 200 stones outside major celebrations” keeps your account flexible and prevents total burnout after a bad session.

Example Scenario

Suppose you currently have 180 stones, the banner arrives in 45 days, and you average 3 stones/day. Add 150 event stones and 0 purchased stones:

• Projected total: 180 + (45 × 3) + 150 = 465 stones
• Estimated summons: 93 singles total value (or 9 multis + 3 singles)
• At 5% featured rate, expected featured copies: 4.65

That is enough to take a meaningful shot at the banner, but still not a guarantee. The calculator helps you decide whether to save longer or summon now.

Final Thoughts

A Dokkan calculator cannot predict luck, but it does improve your decision quality. With better planning, you summon with a purpose, avoid regret pulls, and maximize both short-term fun and long-term account strength.

Note: This is a fan-made planning tool and is not affiliated with Bandai Namco, Akatsuki, or the official Dragon Ball Z Dokkan Battle team.