Free financial calculators for mortgages, debt, retirement, and income planning. No signup, no ads tracking you, just smart tools for smarter decisions.
Every calculator runs in your browser. No data stored, no accounts needed.
Calculate monthly payments, total interest, and view a full amortization schedule for any home loan.
Find out how much house you can afford based on your income, debts, and down payment.
See if refinancing saves you money. Compare your current loan with a new rate and term.
Compare the long-term wealth impact of renting versus buying a home over 5 to 30 years.
Compare Snowball vs. Avalanche strategies. See your debt-free date and total interest saved.
Calculate your ideal emergency fund size based on expenses, income stability, and risk factors.
Find out how long it takes to reach any savings goal with monthly contributions and compound growth.
Discover your real hourly rate after commute, prep time, unpaid overtime, and hidden work costs.
Calculate the minimum hourly or project rate you need to charge to hit your income goals.
Is your side hustle actually worth it? See your true earnings after taxes, expenses, and time cost.
Track your total net worth with assets, liabilities, age-based percentiles, and growth projections.
See how your money grows over time with the power of compound interest and regular contributions.
Find out if you're on track for retirement. See your projected balance and whether your savings will last.
Making smart financial decisions requires good data. Whether you're buying your first home, paying down debt, planning for retirement, or figuring out if your side hustle is actually profitable, FinCalcs gives you the numbers you need to decide with confidence.
Every calculator on this site runs entirely in your browser. We don't store your financial data, we don't require an account, and we don't sell your information. Just enter your numbers, get your results, and make better decisions.
Each tool is built on established financial formulas and evidence-based models. Our mortgage calculators use standard amortization formulas. Our debt payoff tools implement both the Snowball and Avalanche methodologies. Our retirement calculator uses compound growth projections with inflation adjustment. Every formula is documented on each calculator's page so you can verify the math yourself.
FinCalcs is designed for anyone making financial decisions: first-time homebuyers comparing mortgage options, professionals negotiating salaries, freelancers setting rates, families building emergency funds, and investors tracking compound growth. No financial jargon, no confusing interfaces, just clear inputs and useful outputs.
We organize our 13 tools into four focused clusters. The Home and Mortgage cluster includes a full mortgage payment calculator with amortization tables, a home affordability estimator using the 28/36 rule, a refinance breakeven calculator, and a comprehensive rent versus buy comparison tool. The Debt and Savings cluster helps you find the fastest path out of debt, size your emergency fund correctly, and project your savings growth. The Income and Career cluster reveals your true hourly wage, calculates freelance rates, and analyzes side hustle profitability. The Investing and Net Worth cluster tracks your total financial picture and projects retirement readiness.
Practical financial guidance backed by real calculations.
Real payment breakdowns using the 28/36 rule for different home prices.
Which debt payoff strategy actually works better? The math and the psychology.
The power of compound interest visualized with real projections.
Read more on our blog.
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