Cents & Sense

Nine free calculators from the Market Briefer desk — built to answer the money questions our readers ask most. Every tool runs entirely in your browser: nothing you type is sent to us or stored anywhere. These calculators are US-focused and for education only — not financial or tax advice.

Compound Interest Calculator

See how your money can grow when returns compound over time — lump sums, monthly contributions, and every compounding frequency.

Mortgage Calculator

Estimate your monthly payment, total interest, and the true cost of a home loan — principal, rate, term, and down payment, all adjustable.

Savings Goal Calculator

Work out the monthly deposit you need to hit a savings target on time, given what you already have and the return you expect.

Currency Converter

Convert between major world currencies at current market rates, fetched live when you click convert.

Retirement Calculator

Project the nest egg your savings could build — and compare it against what retirement might actually cost you.

Loan Amortization Calculator

Every payment of your loan, month by month: how much goes to interest, how much to principal, and when the balance hits zero.

Income Tax Estimator

Estimate your 2026 federal and state income tax in seconds — all 50 states plus DC, with every filing status.

Inflation Calculator

Find out what money from years past is worth in today’s dollars, using official CPI-U data through August 2026.

Crypto Profit/Loss Calculator

Track gains, losses, and cost basis across your crypto lots — with proportional average-cost math for partial sales.

For education only — not financial or tax advice.