Transparent budget math
Spendable = max(0, balance minus reserve). Affordable purchases = floor(spendable divided by cost). The remainder stays visible.
BRASS HELL Budget Calculator
Enter a balance, one fixed purchase cost and a reserve in the same currency. Calculate affordable purchases without predicting factory earnings or changing upgrade prices.
Your current inputsEqual-cost purchasesCalculated in your browser
Your live values
Set a spending limit
Use one currency and a fixed cost for every purchase in this calculation. Recalculate if the price changes.
Calculated locally
Equal-cost purchase budget
Enter a non-negative balance and a cost greater than zero in the same currency.
This tool calculates from your inputs in the browser. It does not request a Roblox login or retrieve live prices.
Use one fixed cost
If the price changes between purchases, update the input. This model does not calculate a workshop price curve.
A budget is not an earnings forecast
The result does not predict shipment payouts, Mastery XP, multiplier stacking or the time needed to earn the balance.
What the calculator tells you
Can it calculate increasing upgrade prices?
It models repeated purchases at one fixed cost. Update the input whenever the price changes.
Can I mix a factory balance with a Robux price?
Use the same currency for every input. This tool does not convert factory earnings into Robux.
Does it connect to my Roblox account?
No. It calculates from the values you enter in this browser and asks for no Roblox login.