Financial Calculators

Financial calculators for your everyday money decisions

One search box, seven decision groups, two markets. No wall of seventy cards to scan.

Eight decisions, not 122 tools

Full A–Z list →

Home Buying

Can I buy this home?

Estimate home affordability, mortgage payments, down payment, loan-to-value, and closing costs.

13 tools · open hub

Loans & Borrowing

What will this loan cost me?

Estimate payment, APR, repayment schedule and total loan cost for personal, auto and student loans, and compare two offers on the same basis.

9 tools · open hub

Debt & Credit Cards

How do I get out of debt?

Plan payoff, minimum payments, balance transfers, consolidation, and debt ratios.

5 tools · open hub

Saving, Investing & Retirement

How will my money grow?

Project compound interest, investment growth and retirement savings, and see how much the return and inflation assumptions move a long-horizon result.

6 tools · open hub

Business & Pricing

Does the business make money?

Find the break-even point, price for a margin or a markup, measure a return over its holding period, and set a freelance rate from the hours you can actually bill.

5 tools · open hub

Market — United States

The default market

Every decision above runs United States rules unless the page says otherwise. Nothing here is mixed into the non-US tools.

27 calculators use U.S. tax and payroll rules · 56 more are currency-neutral

Market — United Kingdom

United Kingdom salary and tax rules

Estimate take-home pay for the 2026/27 UK tax year, including PAYE income tax, National Insurance, pensions and student loans.

4 calculators · open hub

Market — India

India salary and tax rules

Calculate in-hand salary from CTC for FY 2026-27, compare the new and old tax regimes, and verify the deductions on your salary slip.

11 calculators · open hub

What to expect from these tools