Magic Reroll = 650 Essence, Race Reroll = 250 Essence, Family Name Reroll = 200 Essence in the shop. Essence packs are bought with Robux.
How is it calculated?
With odds p per roll, the chance of at least one hit in n rolls is 1 − (1 − p)n. The rolls needed for a confidence c is ⌈ln(1 − c) / ln(1 − p)⌉. The starting character counts as roll one. After your free rerolls, the tool finds the cheapest mix of 1, 5 and 10 packs that gives enough rerolls (you can end up with extras, because packs come in fixed sizes).
Which prices are used?
| Pack | Race (Robux) | Family (Robux) |
|---|---|---|
| 1 reroll | 75 | 59 |
| 5 rerolls | 335 | 259 |
| 10 rerolls | 600 | 469 |
Frequently asked questions
How many rerolls do I need for Lesser Angel?
Lesser Angel is 1% per roll. The average is 100 rolls, you have a 50% chance within 69 rolls and a 90% chance within 230 rolls. The calculator shows the Robux cost of those.
Does the first roll count?
Yes. The character you start with is the first roll, so the free 2 rerolls give you 3 looks in total.
How much is a Magic Reroll?
The shop lists a Magic Reroll at 650 Essence. With the biggest Essence pack (6,025 Essence for 1,449 Robux) that is about 156 Robux per reroll.
Is each roll independent?
We assume so, using the odds the game shows. If the game has hidden pity rules, we have not seen them and the calculator does not include them.
Why is the 10 pack cheaper per roll?
Race rerolls cost 75, 67 and 60 Robux per roll in the 1, 5 and 10 packs. Family rerolls cost 59, 51.8 and 46.9. Bigger packs always cost less per roll.
Related pages
Sources
- Odds: character creation screen, Nov 3, 2026. Prices: Roblox developer products API, Nov 5, 2026.