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Calculation methodology

We aim to make calculations inspectable: inputs have labels and units, results identify their units, and each calculator shows its formula and assumptions.

Formulas and units

Published calculators use reusable arithmetic formulas and unit conversions. The calculation engine runs in your browser and checks input ranges, compatible units and supported arithmetic. A result depends on both the formula and the values you supply.

Worked examples help you check a calculation. Rounding can change displayed values. Material coverage, densities, prices and local conditions may differ from examples; use the applicable supplier or project data.

AI-generated calculators

Google Gemini proposes a structured calculator definition, which is validated before use. The browser evaluates supported arithmetic rather than executing AI-generated JavaScript. New proposals ask you to confirm the inputs and results. Refinements can change the formula, so review the method after each change.

Validation can catch unsupported operations or invalid fields. It cannot establish that a model accurately describes your task. Check assumptions, fixed rates and a known example before using or sharing a template.

Evidence and limits

Where a calculator includes method sources, those links explain the underlying method; they do not mean the source reviewed or certified this website. Catalog formulas have automated checks, but neither a passing test nor an AI response guarantees that a calculation is suitable for a particular decision.

These tools provide estimates and educational calculations. Obtain qualified advice where a construction, financial, medical, legal or other consequential decision requires it.

Report a correction

Email admin@aimasterz.com with the calculator link and a non-sensitive example. Include the expected result and its source if available.