Making sure you have enough ressources for a big build is important before you begin speeding your buildings along. I have made guides on the upgrade costs of all buildings and for all levels of each building in Infinity Kingdom. Please see my article collection here: Buildings & Upgrade Costs
When you know what you wanna build, you need to know if you can build it! Therefore, I have made this little tool to help you calculate the amount of ressources you have available in your inventory.
Calculate your inventory
Calculate ressource totals