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PlainCalc

24 free calculators · no sign-up · US-focused

Free financial calculators.

Mortgage payments, paychecks, savings goals, credit-card payoff, invoices. Every answer updates as you type, explains itself, and can be saved or shared with a link.

  • Current-year dataSources and dates shown
  • Whole answerCosts and formulas explained
  • Save or shareNo account required
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Principal & interest, 30-yr fixed
$2,198/mo
Loan $320,000 · 7.32% U.S. average · week ending Oct 22, 2026 (Freddie Mac)
Add taxes, PMI & schedule →

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Every salary from $20k to $300k, per hour, per paycheck, after tax.

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$X an hour is how much a year?

Every wage from $8 to $150, full-time, part-time, and overtime.

Why people keep coming back

The whole answer, not just one number

The mortgage tool shows taxes, insurance, PMI, and HOA. The paycheck tool itemizes every tax line. You see the math, the formula, and what to do about it.

Saves and shares without an account

Every input lives in the link. Copy it to a spouse, an accountant, or your future self. Save scenarios to your browser; nothing is uploaded, ever.

Fast, honest, and readable

No pop-ups, no gated results, no “enter your email to see the answer.” Pages load in a blink on a phone. Data sources and the year they were verified are stated on every page.