Assumptions, not advice
These tools perform bounded arithmetic from your inputs. They do not determine legal obligations, lender approval, investment suitability or future returns. Each page describes its exclusions and includes an independently worked example.
Sources and validation
AllMarkets uses linked primary or specialist references for definitions and background. AI assisted implementation. Known numerical cases, invalid inputs and responsive browser behaviour are tested. No licensed reviewer or professional certification is claimed.
Privacy and export
Inputs remain in page memory and are lost on reload. They are not sent to a calculation API or stored in cookies. CSV is generated locally when requested; it contains result labels and values. Ordinary hosting logs can record page URLs and IP addresses.
Precision
Calculations use floating-point arithmetic. Most displayed results round to two decimals; CSV retains numeric precision. They are estimates, not a payroll ledger, bank statement or binding quote. Rounding rules and model-specific limits appear with each calculator.
Corrections
Check currency, units and time periods first. Report a suspected error using the main site contact options, including the tool name and a non-sensitive example.