🧮 Free Online Calculators
10 powerful calculators for everyday use. Fast, accurate, and 100% free. No registration required.
BMI Calculator
Calculate your Body Mass Index (BMI) instantly. Check if you're underweight, normal, or overweight.
Calculate BMI →Age Calculator
Calculate exact age in years, months, days, hours, and minutes. Perfect for birthdays and anniversaries.
Calculate Age →Percentage Calculator
Calculate percentages easily. Find percentage of a number, percentage increase/decrease, and more.
Calculate % →Scientific Calculator
Advanced calculator with trigonometric, logarithmic, and exponential functions. Perfect for students.
Open Calculator →Smart Calculator Pro
All-in-one calculator with memory functions, history tracking, and advanced operations.
Use Calculator →Unit Converter
Convert length, weight, volume, temperature, area, speed, and more. 20+ unit categories.
Convert Units →Currency Converter
Convert between world currencies with live exchange rates. Support for 150+ currencies.
Convert Currency →CPM Calculator
Calculate Cost Per Mille (CPM) for advertising campaigns. Essential for marketers and bloggers.
Calculate CPM →PayPal Fee Calculator
Calculate PayPal transaction fees instantly. Know exactly how much you'll receive or need to send.
Calculate Fees →Random Number Generator
Generate random numbers with custom ranges. Perfect for contests, games, and testing.
Generate Numbers →