Calculators

Build and research time

How long something takes with your speed buffs.

Time Like 1d4h, 2h30m or 05:30:00.Speeds up

Your own speed (%)

Construction or research speed from your base stats (tech, VIP, decorations). Leave 0 if unsure.Capitol position

Cooperative Construction / Research

Total speed: +0%

Result

Speed bonuses add up, then: time ÷ (1 + total speed %). +100% speed halves the time; +10% saves about 9%, not 10%.

Numbers come from community game data and can change with game updates. The game is always right.