Method
How this tool works
The calculation runs in your browser using the documented unit-definitions-2026.1 method. Inputs are excluded from analytics. Review the formula, assumptions and warnings displayed with the result before relying on it.
Limits
Assumptions and limits
This is a practical planning utility, not a substitute for an official record or professional advice. Browser, locale and input conventions can affect how a result should be interpreted.
Privacy
Your input stays private
Values are processed locally in this browser and are not intentionally uploaded or stored by Great Future. Page analytics may record only allowlisted interaction categories when consent permits.
Sources
Method references and scope
The implementation is covered by tested engine fixtures and the versioned method named above. Tool-specific warnings identify browser or subject-matter limits without presenting universal methods as regulations.
Related
Related tools
Across Great Future