Rebirth Calculator

How the calculator works

The tool estimates the Shrink per Step required for your next rebirth using the pattern (current rebirths + 1) × 25 as a baseline multiplier gate seen in mid-game progression. It also approximates the next major Shrink Cube cost from Wins using exponential scaling tied to win milestones — matching the spirit of in-game pricing without exposing proprietary datamine values.

When your Shrink per Step meets the rebirth gate and Wins are not urgently needed for an upcoming cube tier, the calculator recommends rebirthing now. When Wins sit below double the projected cube cost, it recommends continuing to grind so you are not rebirthing into poverty.

These outputs are guidance, not guarantees. Always confirm against live UI before confirming rebirth. Patch weeks can shift constants overnight; pair results with the Weekly Updates page.

When to rebirth vs when to keep grinding

Rebirth when permanent multiplier growth outweighs the temporary loss of Shrink per Step and partial cube progress. Good signals: you hit the rebirth button threshold, your current cube tier is maxed or intentionally skipped, and the next Treadmill Table upgrade is either owned or far enough away that Wins can rebuild quickly after reset.

Keep grinding when you are one purchase away from a high-tier Shrink Cube listed in our Shrink Cubes Tier List, when Wins are earmarked for a zone door on the Zones & Doors map, or when an event boost makes Win farming unusually efficient this session.

Endgame players rebirth more aggressively because multiplier stacks dominate long runs. Beginners should rebirth less often until they understand cube breakpoints from the Beginner Walkthrough.

Using inputs effectively

Current rebirths: your lifetime rebirth count from leaderstats. Off-by-one errors here skew the threshold line — double-check before pasting from screenshots.

Current Wins: spendable currency, not lifetime earned. Include banked Wins you plan to spend before rebirth; exclude Wins already committed to pending purchases.

Shrink per Step: the stat that increases while treadmill grinding. Use the live value after equipping trails or tables that modify the displayed number.

• Run the calculator before and after equipping new trails from the tier list.
• Log results in a spreadsheet if you chain rebirths for science.
• Compare manual results with auto-rebirth script thresholds.
• Re-check after redeeming codes that boost Shrink per Step temporarily.

Synergy with guides and scripts

Our How to Rebirth Faster guide explains the philosophy behind the numbers this page crunches. Read it once, then use the calculator weekly as stats inflate.

Auto-rebirth scripts from the Auto Rebirth Scripts page should mirror calculator recommendations. If script settings disagree persistently, trust in-game UI and update script offsets.

Farm scripts on the Auto Farm page inflate Wins between rebirths — run the calculator after farm sessions to avoid resetting with unspent currency that could have bought two cube tiers.

Limitations and disclaimers

The calculator simplifies complex curves. Secret multipliers, limited-time event buffs, and unreleased rebirth tiers may not be modeled until we verify them post-patch.

We do not store your inputs server-side; everything runs locally in the browser when you click Calculate. Safe to experiment with hypothetical builds.

Unofficial fan tool — not affiliated with Seastar Studioss or Roblox Corporation. Game balance is authoritative in the live experience.

After you rebirth

Return to your highest affordable Treadmill Table using the Treadmill Tables Tier List for priority order. Reapply trails, restart AutoFarm or scripts, and set a new calculator checkpoint for the next cycle.

If pushing Cheese World, confirm rebirth did not drop you below requirements in the Cheese World Unlock guide before hopping zones.

Share feedback if post-patch rebirth math diverges from calculator output — we tune formulas after community verification.