OmniCalcX

Free online calculators for math, finance, health, and everyday use. Fast, accurate, and easy to use.

Scientific Calculator

Full-featured TI-84 style scientific calculator with matrix, calculus, complex number, and statistics modes.

Calculate your monthly mortgage payment, total interest, and amortization breakdown.

Calculate your Body Mass Index and find out your weight category with a visual range indicator.

Calculate your exact age in years, months, and days, plus days until your next birthday.

Quickly calculate tip amounts, total bill, and per-person split for any group size.