My Giant Sandwich Earnings & Upgrade Calculator
Compare one upgrade with numbers from your own session. See cash shortfall, time until affordable, income gain, and payback without guessed game rates.
Your game numbers
Compare one upgrade
Enter values you can see in your own session. This calculator does not load hidden or official game rates.
Session and offline projection
Based on your entries
Upgrade readout
Add the four upgrade numbers
You will get affordability, payback, and online earnings results immediately. Optional offline estimates appear only from the efficiency you enter.
Calculated locally in your browser. We do not send your cash or income values to analytics.