Balance minus reserve
Spendable is your balance minus the reserve, with zero as its minimum. Divide that amount by the price and round down to find whole equal-price purchases.
Steal and Cure a Zombie Budget Calculator
Enter the balance and price you are comparing, then choose a reserve. Use the same currency for each input. This tool performs arithmetic; it does not read a Roblox account or predict future pen earnings.
Your balanceYour current priceLocal arithmetic
Spending plan
Compare a purchase with your budget
Use one price and one currency at a time. Supply the actual offer you are considering.
Calculated result
Equal-price purchase budget
Enter a non-negative balance and a cost above zero.
Calculation happens in your browser. The tool cannot sign in to Roblox, read a balance or buy an item.
One price at a time
Different items and currencies require separate comparisons. A result for several equal-price purchases is not a mixed shopping basket or proof that an offer permits repeated purchase.
Choose the task first
The result does not predict Secret odds, cured size, training time or future income. First decide which actual upgrade or optional pass addresses the activity you want to improve.
Your inputs and the result
Why are there no preset balance or price values?
Your balance is personal and offers can change. Enter the values you are actually comparing.
Does it forecast pen income or capture odds?
No. It calculates from your inputs without a game-income formula, reward prediction or Secret probability.
What if my reserve exceeds my balance?
Spendable stops at zero. Reduce the reserve only if you deliberately want to protect less of your balance.
Can it buy the item?
No. A budget comparison does not make a purchase or provide access to your Roblox account.