Smart calculators. Zero fluff.

Nine powerful tools — instant, private, free.

🔒 Private ⚡ Instant 🆓 Free forever

Loan / Mortgage Calculator

See your full monthly housing cost including taxes & insurance, the complete amortization schedule, and how extra payments accelerate payoff.

Monthly P&I: — | Full Payment: — | Total Interest: —
Amortization Schedule (scroll for all years)
YearPaymentPrincipalInterestBalance

Frequently Asked Questions

Is Numbrary free?
Yes. All tools are completely free. No signups, no hidden fees.
Is my data private?
Yes. All calculations happen locally in your browser. Nothing is sent to any server.
How does the loan calculator work?
Enter loan amount, down payment, interest rate, term, and optionally taxes/insurance. It shows monthly payments and a complete year-by-year amortization schedule.
How does the investment calculator work?
Enter initial investment, monthly contributions, expected return, inflation rate, and compound frequency. It shows future value in both nominal and inflation-adjusted (real) terms.
How does the color converter work?
Use the color picker or type in HEX, RGB, or HSL. The converter shows CMYK, HSV, complementary colors, and a range of shades and tints automatically.