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upgradeClassic tool

Upgrade Cost Calculator

Estimate expected cost, average attempts and cumulative success chance for upgrade systems.

Use this upgrade cost calculator to estimate how many resources an enhancement may consume before it lands. It works well for games with gear upgrades, enchanting, crafting, refining, forging and any system where each try has its own success percentage.

Enter the cost per attempt, the success rate and how many tries you plan to make. The tool returns the expected cost until the first success, the average number of attempts, the average failures before success, the cumulative chance of succeeding within your plan and the total amount you intend to spend.

That makes it easier to compare strategies, manage risk and decide whether it is worth pushing now or saving more resources first. It is a fast planning tool for anyone who wants cleaner upgrade math without building a spreadsheet.

Use whatever in-game currency or resource fits your system. The tool treats success chance as a per-attempt percentage.

SummaryFill in all three fields to estimate upgrade cost and success odds.
Expected cost to first success—
Expected attempts—
Average failures before success—
Cumulative chance in your plan—
Total planned spend—
Applied formulaexpected cost = cost per try / success chance

Use clear inputs to get a more useful result.