About — Free Finance Calculators

20 free finance calculators that run in your browser

Bright Coding Finance Calculators is a free collection of accurate, easy-to-use calculators for everyday money decisions: salary after tax, freelance rates, business metrics (ROI, margin, break-even), loans and mortgages, and real-estate rental yield.

Why it exists

Finance tools are often locked behind sign-ups, paywalls or cluttered ad walls, and you never know whether your numbers leave your device. These calculators run entirely in your browser: your inputs are never uploaded.

Free means free

The site is 100% free and requires no account. It is supported by non-intrusive advertising and by the Bright Coding network of free utilities.

Educational, not financial advice

The calculators are provided for information and education. They are not financial, tax, legal or investment advice. Always confirm important decisions with a qualified professional. See our Terms.

The Bright Coding network

This site is part of a family of free online tools — invoice generators, image compressors, password and QR tools, developer utilities, resume builders and more. All follow the same principle: useful, fast, free and privacy-first.