Calculator Tools

A comprehensive collection of free online calculators for everyday calculations. From percentage and age calculators to financial tools like compound interest and tip calculators, health calculators including BMI, body fat, and calorie calculators, to date and time utilities. All calculators run locally in your browser, ensuring your data stays private and secure. Perfect for students, professionals, and anyone who needs quick, accurate calculations without installing software.

Percentage Calculator

Calculate percentages easily with our free online percentage calculator. Find what percent of a number, percentage increase/decrease, and more. Fast, accurate, and easy to use.

Age Calculator

Calculate your exact age in years, months, and days with our free online age calculator. Find out how many days until your next birthday. Fast and accurate.

Tip Calculator

Calculate tips and split bills easily with our free online tip calculator. Supports custom tip percentages, multiple people, and shows per-person amounts. Fast and accurate.

Date Calculator

Free online date calculator. Calculate days between two dates, add or subtract days from any date. Supports business days calculation, excludes weekends and holidays. Perfect for project planning.

GPA Calculator

Calculate your GPA (Grade Point Average) instantly with our free online calculator. Supports multiple grading scales including 4.0, 5.0, and percentage systems. Perfect for students.

Fraction Calculator

Calculate fractions easily with our free online fraction calculator. Add, subtract, multiply, and divide fractions. Simplify fractions and convert between fractions, decimals, and percentages.

Calorie Calculator

Calculate your daily calorie needs with our free online calorie calculator. Determine calories for weight loss, maintenance, or muscle gain based on your activity level and goals.

Body Fat Calculator

Free online body fat percentage calculator using US Navy method and BMI formula. Enter height, weight, waist, neck measurements to calculate body fat. Get insights into body composition and fitness goals.

Compound Interest Calculator

Calculate compound interest and investment growth with our free online calculator. See how your money grows over time with different interest rates and compounding frequencies.

BMI Calculator

Calculate your Body Mass Index (BMI) instantly with our free online BMI calculator. Supports both metric and imperial units. Get health advice based on WHO and China standards.

Loan Calculator

Calculate your loan payments instantly with our free online loan calculator. Supports equal payment (amortization) and equal principal methods. View detailed repayment schedule with monthly breakdown.