How ToolGlo calculates results
Every reference calculator is paired with a formula, assumptions and worked example so you can check what the result means.
Deterministic engines
The five reference tools use small, typed TypeScript functions separate from the page interface. The same engine can be presented in multiple locales without duplicating calculation rules. Inputs are validated before a result is returned; display rounding is kept separate from internal arithmetic.
Review and quality
Each published locale has content version and review-date metadata. Automated checks look for missing explanations, duplicate metadata, broken related-tool links and incomplete SEO fields. A quality failure or non-published state blocks indexing and sitemap inclusion.
Assumptions matter
The tool page explains important conventions, such as end-of-period savings contributions, monthly payment counts, calendar-based age calculations and BMI’s limitations. If a convention is missing or unclear, treat the result as provisional and report the page for review.