ROK Calculator
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diamondGem Cost
Rise of Kingdoms Speedup Optimization
In Rise of Kingdoms, time is the most valuable resource. Whether you are pushing T5 troops or rushing a Castle upgrade for Zenith of Power, knowing the exact gem cost of your remaining time is crucial. Our ROK Calculator converts your upgrade timers directly into Gem equivalents so you can budget your spending.
When to Spend Gems
Smart governors wait for the "More Than Gems" event to spend their gems on VIP points or Castle books. If you must speed up a research or building, ensure you have used all your inventory speedups first, or calculate if buying the "7-Day Speedup" from the courier shop is cheaper than instant gemming.
Calculation Logic
This tool estimates gem costs based on the standard conversion rate found in the game's direct speed-up menu. Note that costs can vary slightly due to VIP buffs or specific event discounts.
Frequently Asked Questions
Is it better to use speedups or gems?
Always use speedups first. Gems should be saved for VIP points, Wheel of Fortune events, or "More Than Gems" events where spending gems yields extra rewards.
How much is a 30-day speedup in gems?
While you can't buy a single "30-day" item, the gem equivalent of 30 days of time is approximately 40,000 to 50,000 gems depending on purchase method.