Race Reroll Calculator

Estimate the cost of achieving your dream race.
Calculate probabilities for Mythics, Legendaries, and more.

Target Race

Tip: you can select multiple races.
Cards show odds for the selected reroll type.
Used to show how many rerolls you can afford.
Chance “at least once” is calculated for N rerolls.
Example: 90 = “I want a 90% chance.”

Statistics

No target selected
—
Pick a race card to begin.
Waiting for selection…
Chance per reroll—
Chance at least once in N—
Expected rerolls (avg)—
Expected shards (avg)—
Rerolls needed for goal—
Shards needed for goal—
Confidence Rerolls needed Shards needed
Math: chance ≥ 1 hit = 1 − (1 − p)^N. Expected rerolls ≈ 1/p.

Compare

Switch “Reroll type” to Compare to see Normal vs Lucky for the same target.

Abyss Race Reroll Calculator

Customization in Roblox Abyss often depends on rerolling races to achieve desired traits. The Abyss Race Reroll Calculator simplifies this process by estimating how many rerolls are needed to reach specific outcomes. It uses community‑verified probabilities to provide realistic expectations, preventing wasted resources.

Players input their target race traits or passive effects, and the calculator computes the likelihood of achieving them within a given number of rerolls. This transparency helps players decide whether pursuing rare bonuses is worth the cost. Instead of gambling blindly, users gain a clear picture of the odds, making rerolling a strategic choice.

The tool also supports budgeting. By estimating the resources required, players can plan ahead and avoid overspending. It encourages experimentation too, allowing users to test different builds and compare probabilities before committing. Competitive players benefit by optimizing race traits for performance, while casual players enjoy reduced frustration.

How to Use

  1. Select Desired Trait: Choose the race bonus or passive effect you want.
  2. Set Reroll Goal: Enter how many attempts you’re willing to make.
  3. Calculate: The tool estimates the number of rerolls needed to achieve your target.
  4. Review Results: Decide whether the outcome is worth the resources.

FAQs

Can I reroll into Mythical races easily?

No, Mythical races have very low probabilities. Be prepared to spend significant resources.

Does rerolling cost resources?

Yes, rerolls consume in‑game currency/items (Shards).

Are race buffs permanent?

Yes, until you choose to reroll again.

Can I preview race passives before rerolling?

The calculator shows probabilities, not guaranteed previews. It helps you manage risk.

Is rerolling worth it for casual players?

Yes, if you want traits aligned with your playstyle, but it’s optional.