Base Upgrade Calculator
Enter the Pet slots, price, and income shown by the live Base or Pen panel to calculate added income, affordability, and payback time.
Conditional upgrade result
Maximum added income if both new slots are filled at the entered rate.
Read the two clocks correctly
Time to afford estimates how long the current measured income needs to cover money you do not already have. Payback time estimates how long the added slot income needs to equal the full upgrade cost after purchase. They are not added together because Pet income may continue while you train or play.
The public Roblox description confirms Base upgrades, but not a universal slot table, Pen expansion formula, Base defense multiplier, storage limit, or offline income rule.
Use this tool in 3 steps
- 1Verify the upgrade panel
Use this only when the live panel shows a price and a specific increase in capacity.
- 2Use a realistic Pet rate
Enter an average for Pets you can actually place, not your single rarest Pet.
- 3Read both clocks
Afford time uses current income. Payback uses only the extra slot income.
Common questions
Do all Base upgrades add Pet slots?
No universal slot table is published. Do not assume a slot gain unless the live panel shows it.
Does payback include the money I already have?
No. Payback uses the full cost; affordability separately accounts for current money.
Does this calculate offline income?
No offline rule is assumed. Use a separate measured comparison when the game confirms it.