finance
Finance Calculators
Free online finance calculators for mortgage payments, compound interest, debt payoff, profit margins, APY, salary conversion, and more. Accurate results, no sign-up.
Finance Calculators
Free calculators for mortgages, investments, debt payoff, profit margins, and income conversion.
Mortgage Calculator
Monthly payment, affordability, and refinance with amortization charts.
Compound Interest
Investment growth with contributions, compounding, and inflation.
Debt Payoff
Compare snowball vs avalanche strategies with charts.
Profit Margin
Gross margin, net margin, and markup from cost and revenue.
Markup Calculator
Selling price from cost and markup with industry benchmarks.
Discount Calculator
Calculate discounts, stack deals, and compare prices.
APY Calculator
Annual Percentage Yield, rate comparison, and savings growth.
Salary to Hourly
Convert between annual salary and hourly rate.
Related Guides
How to Use This Calculator
- Browse the finance calculators below.
- Click any calculator to open it.
- Enter your numbers and get instant results.
The Formula
Each calculator uses its own formula — see individual pages for details.Learn More
Finance
APY vs APR: What Your Bank Doesn't Explain
APY and APR both describe rates — but one includes compounding and one doesn't.
FinanceDebt Snowball vs Avalanche: Which Payoff Strategy Wins?
Snowball builds momentum. Avalanche saves money. Which payoff strategy actually works?
FinanceMarkup vs Margin: The Difference That Costs Thousands
Markup and margin are not the same. Confuse them and you'll misprice everything.
FinanceHow to Calculate Compound Interest (With Real Examples)
The compound interest formula explained with real dollar examples and savings scenarios.
Frequently Asked Questions
Yes, all calculators are 100% free with no sign-up required.