About The Ledger

The Ledger is a free collection of calculators for everyday financial, mathematical, health, and date-related questions.

Our goal is simple: make common calculations easier to understand and quicker to complete. Calculators run in your browser, so the site does not need an account or a server-side calculation for ordinary use.

Accuracy

Results are estimates based on the formulas and assumptions shown by each calculator. They are not financial, medical, tax, or legal advice.