Shibuya reroll odds calculator (November 2026)
Enter any reroll chance and number of rerolls to get your odds of at least one hit; Shibuya has no developer-published reroll odds.
The formula
With chance p per roll and n rolls, the chance of at least one hit is 1 − (1 − p)^n. Rolls for a target chance q are ln(1 − q) ÷ ln(1 − p), rounded up. It assumes every roll is independent (no pity system).
What you roll in Shibuya
Rerolls change your Cursed Technique, Clan or Race, and there are cosmetic rerolls such as Face, Hair Color and Theme. Codes mostly give rerolls. Sources: GamesRadar+: Shibuya codes (Nov 12) · Beebom: Shibuya codes (Nov 4)
Project M has not published reroll odds anywhere we can read. The only race percentages we found online do not say where they come from, so we left them out.
How to use the calculator
- 1Enter the chance per rollType the drop chance in percent, or tap a number in a reference table to fill it in.
- 2Enter how many rollsType how many keys, arrows, spins or rerolls you plan to use.
- 3Read the resultSee your chance of at least one hit, and how many rolls give a 50% or 90% chance.
Frequently asked questions
What are the race odds in Shibuya?
There are no published odds. The numbers we found online give no source, so we do not show them. Enter your own estimate to see what it means.
How many rerolls do I need for a 1% clan?
If the chance really is 1% per reroll, you need 69 rerolls for a 50% chance and 230 for 90%.
Do rerolls stack or expire?
GamesRadar+ says rerolls stack and do not expire, and that code rerolls go to the character slot you redeem them on.
Is there pity in Shibuya rerolls?
We know of no pity system. The calculator treats every reroll as independent.
Sources and last check
- PressGamesRadar+: Shibuya codes (Nov 12)Checked
- PressBeebom: Shibuya codes (Nov 4)Checked