25 free tools that answer one money question at a time, clearly and with the math shown. No signup, no spreadsheets, and every calculation runs in your browser, so your numbers never leave your device.
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Your debt-free date, and what an extra payment saves in time and interest.
Monthly car payment with tax, trade-in, and total interest over the loan.
How long minimum payments really take, and the fix.
The DTI percentage lenders check, and where you stand.
Monthly payment with taxes and insurance, plus full amortization.
How much house you can buy on your income, by the 28/36 rule.
New payment, monthly savings, and your break-even point.
How long until you've saved enough to buy.
The rent you can comfortably afford on your income.
Exactly how much to save each month to hit any goal on time.
Your target safety net and how long it takes to build.
What a certificate of deposit pays at maturity.
I = P × r × t, and how it compares to compounding.
What today's money will actually buy in the future.
What your money grows to, with a year-by-year chart and table.
Your nest egg projection and FIRE number by the 4% rule.
The point where growth alone gets you to retirement.
What a 1% fee quietly costs over 30 years.
The honest annualized growth rate between two values.
Return on investment, total and annualized.
Everything you own minus everything you owe.
Most calculator sites bury the answer under popups and upsells. EvenSums does the opposite: each tool loads instantly, works on any device, explains the formula it uses, and answers the follow-up questions people actually ask. Everything runs locally in your browser; we never see, store, or transmit the numbers you enter.
Working with dates instead? Our sibling site DaySums has 10 free date and time calculators: age, days between dates, countdowns, and more.
Visit DaySums