WorkedSums - Showcase Project
Listed October 7, 2026
About WorkedSums
Free money calculators that show the formula behind every result
WorkedSums is a collection of 41 free calculators for personal finance: mortgages, loans, compound interest, budgeting, salary, and a full set for financial independence (FIRE, Coast FIRE, Barista FIRE, FIRE with a pension, and one for couples). Each calculator includes a worked example, the formula it uses and answers to common questions. No sign-up, six currencies, and all calculations run in your browser, so the numbers you type never leave your device.
Project details
Website: https://workedsums.com
Project metrics
Average Monthly Visitors: Pre-launch