Free Everyday Calculators — Age, BMI, Tip, Discount & More

Quick calculators for everyday needs — age, percentages, BMI, tips, discounts, and GPA. Fast, free, and instant results right in your browser.

Age Calculator

Calculate exact age in years, months, and days from a date of birth.

Calculate percentages, percentage change, and percentage of a number.

Calculate Body Mass Index from height and weight with healthy range indicators.

Calculate tip amount and split the bill across multiple people.

Calculate final price after a percentage discount and total savings.

Calculate Grade Point Average from course grades and credit hours.