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Bubble Gum Simulator Infinity

BGSI Calculator

Calculate BGSI luck, hatch chance, egg odds, and how many hatches you need for a target probability. Built for quick checks while you are playing.

x
Luck multiplier slider
1100x
Hatches opened slider
11,000,000
%
Goal chance slider
199%

BGSI Result

Final chance per hatch
1 in 40,000
0.0025% per hatch
After Hatches
22.12%
10,000 hatches
Custom Goal
92,103
for 90%
Hatches Needed
50% Chance27,726
90% Chance92,103
99% Chance184,205

Start with the Hatch Question

Most BGSI players want a fast answer while they are playing: what are my real odds with luck boosts, how likely am I after this many hatches, and how many eggs would I need for a 50%, 90%, or 99% target?

What This BGSI Calculator Does

This BGSI calculator is a general hatch chance tool for Bubble Gum Simulator Infinity. Instead of relying on a pet database that can become outdated, it lets you enter the base odds from the egg or wiki, apply your luck multiplier, and estimate your real chance over many hatches.

BGSI Luck Calculator Formula

Final chance = base chance x luck multiplier.

Chance after N hatches = 1 - (1 - final chance)^N.

Required hatches = log(1 - target chance) / log(1 - final chance).

Example: 1 in 1,000,000 with 25X Luck

A pet with a 1 in 1,000,000 base chance becomes roughly 1 in 40,000 per hatch with 25x luck. If you hatch 10,000 eggs at that rate, your chance of getting at least one is about 22%. The calculator shows these values instantly and also estimates how many hatches you need for 50%, 90%, and 99% goals.

BGSI Egg Calculator vs Trade Calculator

Players searching for a BGSI calculator may want different tools. This page is for eggs, luck, hatch chance, and secret pet odds. Trade value, WFL, and inventory pricing are separate calculator types and should use a dedicated BGSI trade calculator.

Made for Fast Checks

Input Format

Use the odds format players already see in-game, such as 1 in 1,000,000, or switch to percent mode.

Luck Buttons

Tap common multipliers quickly, then adjust the exact value if your boosts are different.

Goal Hatches

See 50%, 90%, 99%, and custom target hatch counts without doing probability math manually.

Share Image

Copy the text result or create a shareable image for friends, Discord, or notes.

Frequently Asked Questions

What is a BGSI calculator?+

A BGSI calculator helps Bubble Gum Simulator Infinity players estimate hatch odds, luck multiplier effects, and how many eggs they may need for a target chance.

How do you calculate BGSI hatch chance?+

Multiply the base hatch chance by your luck multiplier. For example, a 1 in 1,000,000 base chance with 25x luck becomes about 1 in 40,000 per hatch.

How do I calculate chance after multiple hatches?+

Use the formula 1 - (1 - final chance)^hatches. This estimates the chance of getting at least one success after opening many eggs.

How many eggs do I need for a 90% chance?+

Use log(1 - target chance) / log(1 - final chance). The calculator does this automatically for 50%, 90%, 99%, and your custom target.

What does 1 in 1,000,000 mean?+

It means each hatch has a one out of one million base chance before luck multipliers or other boosts are applied.

Is this a BGSI trade calculator?+

No. This page focuses on luck, egg odds, and hatch chance. Trade values and WFL checks are a different use case.