RunAGym
Purchase payback

Run a Gym Calculator

Compare a machine, worker, car, or upgrade using the cost and cash rate you can see right now. The math updates instantly and every assumption stays in your hands.

Your game values

Enter the purchase you are comparing

Read these numbers from your current server. This page does not assume machine prices or income rates.

Live estimate

Payback and cash projection

Add a positive cost and cash-per-minute rate.

Results appear as you type. Boost must be above zero, and the optional percentage cannot be negative.

Estimate only: your actual rate can change with layout, server state, workers, upgrades, or a game update.

How the estimate works

One transparent payback formula

Adjusted cash per minute equals your observed base rate multiplied by an optional boost, then increased by the optional worker or upgrade percentage. Payback time equals purchase cost divided by that adjusted rate. The 10, 30, and 60-minute cards use the same rate.

Questions

Calculator FAQ

Does this calculator know every Run a Gym machine price?

No. Enter the cost shown in your game so the estimate never depends on an invented or outdated machine price.

What should I use for cash per minute?

Watch your cash for a measured minute in your current server, then enter the increase you observed. Use a representative minute rather than your best short burst.

What does the payback time mean?

It is the purchase cost divided by the adjusted cash earned per minute. It estimates when the entered earnings equal the cost; it does not guarantee profit or include every game effect.

How do boosts and workers affect the estimate?

A boost multiplies the base rate. The optional worker or upgrade percentage increases that boosted rate. Leave the defaults at 1 and 0 if you cannot confirm those values in game.