How to use this calculator
Calculate effective cooldown and casts per minute after cooldown reduction.
How the calculation works
- Enter the design assumptions for the system you are balancing.
- Tool2Do calculates a deterministic table or result from the displayed method.
- Use export options only where the output is reusable game data.
Formula
Effective cooldown = base cooldown x (1 - cooldown reduction).
Example
A 10 second cooldown with 20% reduction becomes 8 seconds, or 7.5 casts per minute.
Understanding your result
Use the output as a practical starting point, then review it before using it in an important workflow.
Assumptions and limitations
- Calculations run locally in your browser.
- These are balancing helpers, not universal game design rules.
- Do not paste private production telemetry or player data.
Frequently asked questions
Does this require an account?
No. The core tool works without creating a Tool2Do account.
Is my input included in share links or analytics?
No. Tool2Do share actions use the tool page URL and safe metadata, not private values or uploaded files.