Our methodology

Each calculator uses arithmetic based on the values you enter. Inputs are processed in your browser, with results recalculated as you type.

Core principles

Show assumptions: Each tool explains the formula and key omissions. Separate estimates from facts: Illustrative inputs are not live vendor prices. Avoid false precision: Results are scenario estimates, not promises of savings or returns.

Checking your result

Compare multiple scenarios. Include taxes, contract terms, training, usage fees and other relevant costs where applicable. Confirm legal or accounting matters with a qualified professional.

We plan to expand explanations and examples as the site develops.