Math & Calculators
Percentage, age, BMI and other calculators
Age Calculator
Calculate exact age in years, months and days from a birthdate.
Try freeArea & Volume Calculator
Calculate area of 2D shapes and volume of 3D solids.
Try freeBMI Calculator
Calculate your Body Mass Index and find your weight category.
Try freeByte / Bit Converter
Convert between bits, bytes, KB, MB, GB, TB and PB.
Try freeDiscount Calculator
Calculate discount amount, sale price, savings, and discounted value with optional sales tax. Supports stacked coupons.
Try freeFibonacci Sequence Generator
Generate Fibonacci numbers up to any length.
Try freeFraction Calculator
Add, subtract, multiply and divide fractions with simplified results.
Try freeGCD / LCM Calculator
Find the greatest common divisor and least common multiple of two numbers.
Try freeLoan / Mortgage Calculator
Calculate monthly payments, total interest and amortization for any loan.
Try freeNumber Base Converter
Convert numbers between binary, octal, decimal and hexadecimal.
Try freePercentage Calculator
Calculate percentages: X% of Y, percentage increase/decrease, and more.
Try freePrime Number Checker
Check if a number is prime and find all primes up to any limit.
Try freeRandom Number Generator
Generate random numbers within a range with options for uniqueness and sorting.
Try freeRoman Numeral Converter
Convert numbers to Roman numerals and Roman numerals to numbers.
Try freeSalary / Hourly Rate Calculator
Convert between annual salary, monthly, weekly, daily and hourly pay rates.
Try freeScientific Calculator
Full-featured scientific calculator with trigonometry, logarithms and more.
Try freeStatistics Calculator
Calculate mean, median, mode, standard deviation, variance and more.
Try freeTip Calculator
Calculate the tip and split the bill between any number of people. Works as a tip splitter and bill splitter in one.
Try freeUnit Converter
Convert length, weight, temperature, speed, volume and area units.
Try free