Race reroll calculator

How many rerolls and Robux packs a race target usually takes.

By Bloxron Editorial Team · Last updated November 3, 2026

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What this reroll calculator is

Pick a target race, enter how many rerolls you plan to buy, and see success chance, average rerolls, confidence thresholds, and Robux cost assuming packs of 10 for 575 Robux.

Drop rates match the races page. Pack pricing assumes 10 rerolls for 575 Robux.

Reroll calculator

Target race

Select a race to run the odds.

Selected Race

Angel

AngelBase chance: 0.25%

Number of Rerolls

Odds and costs

Costs based on packs of 10 at 575 R$ each.

Chance to get Angel in 10 rerolls

2.47%

Need more rerolls to reach confidence

50%:267

90%:910

99%:1830

Average rerolls needed

~400.0

(~23,000 Robux)

50% Confidence

277

16,100 Robux

90% Confidence

920

52,900 Robux

99% Confidence

1840

105,800 Robux

How to use

Select a race on the left, set reroll count, read costs on the right.

Select a target race. Tap a race tile. Drop rate and rarity match the races page list.
Enter number of rerolls. This is how many spins you already plan to do. It feeds the success-probability card.
Read average and confidence. Average rerolls is the mean spins to hit once. 50% / 90% / 99% cards show how many spins (and Robux packs) that confidence needs.
Check leftover spins. The green card shows how many more rerolls you still need beyond the count you typed to hit each confidence level.

Examples

Budgeting common targets.

Angel at 90% confidence

Try: Select Angel (0.25%), leave count at 10, read the 90% confidence Robux.

Why: Mythical races need many packs. The confidence cards show the bill before you buy.

One 10-pack for Goblin

Try: Select Goblin (~10.4%) and set rerolls to 10.

Why: You see pack success chance for a single shop purchase versus rarer targets.

Already bought 50 spins toward Demon

Try: Select Demon, set rerolls to 50, check leftover for 99%.

Why: Shows how close you are after a session instead of restarting from zero.

FAQ

Is pack price always 575 Robux?

The tool assumes 10 rerolls for 575 Robux. If the live shop changes, update the bill in your head.

Independent rolls?

Yes. Each reroll uses the listed drop percent. Pity is not modeled here.

Why average rerolls looks huge for ArchAngel?

At 0.1%, the mean is about 1,000 spins. Confidence and Robux scale with that rarity.

Where do drop rates come from?

Same rates as the races page. If a patch changes drops, check that list again.