Goal planner
Enter your current balance, target, measured bananas per minute, and normal session length.
Three player tools
Banana Monkey Destruction Calculator
Plan a banana target, calculate upgrade payback, and compare two routes. Every result comes from the values you enter, so the tool stays useful when the game changes.
Sources checked August 5, 2026
Player-input tools
Use your own in-game numbers
Banana goal planner
Estimate time from the rate you measured.
Still needed
900
Estimated time
18 min
At the entered rate
Sessions
2
Rounded up
Upgrade break-even
Buy it, measure again, then see how long the cost takes to earn back.
Rate gain
+15/min
Efficiency lift
+30%
Payback time
33.3 min
Cost divided by measured rate gain
Route comparison
Record bananas collected and elapsed time for two clean runs.
Route A
Route B
Route A rate
60/min
Route B rate
62.5/min
Better result
Route B
4.2% higher in this sample
These are planning calculations, not official game formulas. Re-measure after an update, a new upgrade, or a route change.
Good input
A calculator is only as useful as the run you measured
Use the same route, duration, boosts, and start conditions for before-and-after comparisons.
Break-even
Enter the displayed upgrade cost and the rate measured before and after buying it.
Route comparison
Enter bananas gained and elapsed time for two clean runs; the tool normalizes both to one minute.