Calculator Disclaimer

Last updated: 16 August 2026

This is a plain-language policy written by the site owner. It has not been reviewed by a lawyer.

The calculators on CalcDome are engineering estimates built to show their work. They are tools for thinking about a decision — not professional advice, and not a substitute for someone who is accountable for your specific situation.

Defaults are a starting point, not your numbers

Where a calculator ships with preset values, they come from either a documented real project or published type-group figures — the pool conversion defaults are a real 15,000-gallon conversion; the aircraft defaults are midpoints for a Cessna 421B, a representative cabin-class piston twin. They are there so the tool tells a coherent story before you touch it. They are not typical values and they are almost certainly not your values. Replace them with your own quotes, rates and measurements before you rely on any output.

Any rate, price or tax figure embedded in a calculator is point-in-time. Electricity rates, chemical prices, insurance quotes, reimbursement rates and tax treatment all change, and a page you found through a search engine may be older than you think.

Not tax or financial advice

The vehicle calculators model reimbursement and allowance scenarios using published rates and simplified assumptions. They do not know your filing status, your state, your other income, your employer's specific plan, or how any of it interacts. Tax treatment of vehicle allowances and mileage reimbursement changes, and the published rates change annually. Before you make a decision with money attached, talk to a CPA or tax professional.

Nothing here is investment advice or a recommendation to buy, finance or sell anything.

Not aviation maintenance or airworthiness guidance

The aircraft operating cost calculator is a budgeting tool. It estimates fixed and variable cost per hour from figures you supply. It says nothing about whether an aircraft is airworthy, whether a reserve is adequate for the actual condition of an engine, or what an inspection will find. Reserve figures in particular are planning averages, not predictions. Consult your A&P mechanic, your actual maintenance records, and the aircraft's POH.

Not a substitute for testing your water

The pool calculators compute dosing and volume from the numbers you enter. Chemical dosing errors damage equipment and can be unsafe: over-salting a pool cannot be undone without draining and refilling, and salt levels outside your chlorinator's range can damage the cell. Always confirm against a current test result and your equipment manufacturer's instructions, and add chemicals incrementally, re-testing as you go. A calculator cannot see your pool.

Accuracy and errors

The underlying math is tested against validated reference cases, and the formula is shown on every calculator so you can check it. Even so, software has bugs and models have limits. Everything here is provided without warranty of accuracy or fitness for a particular purpose — see the terms.

If you find an error, please report it to hello@calcdome.com. Corrections are the fastest way this site gets better. The sources and formulas behind the pool models are set out in the methodology.