Calculators

Built from the game's actual formulas. Everything runs in your browser — nothing is sent to a server.

Cap, the 42.2% peak, and the recommended band from tiles and city levels.

Gold by port distance. See why anything under 300 is worthless.

Cumulative cost and next price, including the shared port/factory counter.

Enter a slider % and click interval, get 60-second territory versus reference policies.

Run the 1-minute build order as a timer. It shows what to do now and beats the 2-second click rhythm.