Slime RNG Luck Calculator

Calculate your odds and estimated time to roll the rarest slimes.

What are you hunting?

What is active right now?

Rebirth Multiplier

1x Starter10x Max Multiplier

Where are you in the game?

Current Luck

3.0x

Effective Odds

1 / 3,333,333

Rolls per hour

2,160

Expected Time

64.3 days

AFK Forecast

Probability of success

1 hour AFK0.065%

12 hours AFK0.775%

24 hours AFK1.543%

Results are statistically estimated based on active multipliers.

Why a Slime RNG calculator helps

Understanding the core loop and expected time versus raw odds allows you to plan your AFK sessions more effectively. Our calculator accounts for all active multipliers to give you the most accurate prediction.

How Slime RNG codes affect luck

Stacking temporary potions with active codes is the fastest way to boost your luck. Knowing when to use these boosts can significantly reduce the time required to roll mythical and god-tier slimes.

Rebirth strategy for maximum efficiency

Permanent multipliers from rebirths are crucial for late-game progression. Use our calculator to determine if your current luck is sufficient for your target slime or if you should focus on rebirthing first.

How to Use the Slime RNG Calculator

Select your target Slime rarity to see the base odds.

Toggle your active luck potions and progression stage.

Adjust your Rebirth Multiplier to see the final AFK forecast.

Understanding Luck Stacking

In Slime RNG, luck is calculated through a combination of additive and multiplicative bonuses. Potions (like Ultra Luck) act as multiplicative boosters to your total roll potential, while group bonuses or specific item effects are often additive. Stacking these correctly during 2x Luck events is the key to pulling Huge or Exotic slimes.