Operations

Status, Boundaries, and Privacy

Web Trial Lab Calculators is a static browser toolset. This page explains what the tools do, what they do not do, and how inputs are handled.

Operational

Current Status

Static pages and browser calculators are expected to be available when the host is serving the built files. There is no backend application or database dependency.

Privacy

Calculator inputs are processed locally in the browser. This site does not require an account, does not upload calculator values, and does not set cookies for the calculator experience.

Boundaries

Aspect ratios are utility estimates based on the entered numbers.
Time duration uses clock times and break minutes, not payroll rules.
PPI is a geometric estimate from resolution and diagonal size.
Date difference uses local calendar dates selected in the browser.

Validation Status

Inputs are constrained in the browser and results are formatted for everyday use. Treat outputs as practical references, not legal, payroll, medical, or financial advice.