About
Marlecourt is a free collection of educational financial calculators.
The site provides 30 calculators across investing, savings, debt and credit, home and auto, retirement, and income planning. Each tool is meant to produce a clear estimate quickly, with enough explanation to understand how the result was calculated.
What you can calculate
- Investing — Growth, returns, compounding, dividends, and fee impact calculators.
- Savings — Savings goals, emergency funds, interest, and APY vs. APR tools.
- Debt & Credit — Loan payments, credit card payoff, debt strategies, and amortization.
- Home & Auto — Mortgage, auto loan, affordability, and down payment calculators.
- Retirement — Retirement projections and FIRE planning calculators.
- Income & Planning — Salary conversions, raises, net worth, break-even, and inflation tools.
Educational purpose
Calculators are informational planning tools. They are not personalized financial, investment, tax, legal, lending, or accounting advice, and they do not create a client relationship.
Models use stated assumptions that often simplify real-world products, taxes, fees, inflation paths, and market behavior. Results depend on the values you enter.
How the site works at launch
- No accounts are required.
- No calculator-input database is used.
- Calculations are designed to run locally in your browser whenever practical.
- Financial values you enter are not sent to analytics (see Privacy).
For methods and limitations, see Methodology and Disclaimer.