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Free Online Calculators

Solve math problems and compute values with quick, precise calculators.

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Percentage Calculator Calculate percentages, percentage change, and what percent X is of Y. Calculators

Age Calculator Calculate your exact age from date of birth in years, months, days, hours, and more. Calculators

BMI Calculator Calculate your Body Mass Index and see where you fall on the BMI scale. Calculators

Tip Calculator Calculate the tip amount and split the bill among any number of people. Calculators

Date Difference Calculator Calculate the exact number of days, months, and years between two dates. Calculators

Number to Words Convert any number to its English word representation (e.g., 123 → one hundred twenty-three). Calculators

Loan Calculator Calculate monthly payments, total interest, and amortization for any loan. Calculators

Discount Calculator Calculate sale prices, savings, and discount percentages instantly. Calculators

Mortgage Calculator Estimate monthly mortgage payments with taxes, insurance, and PMI. Calculators

Random Number Generator Generate random numbers, dice rolls, and lottery numbers. Calculators

Attendance Calculator Check your attendance and the classes needed to reach your own target. Calculators

SGPA Calculator Calculate semester GPA using your credits and grade-point scale. Calculators

CGPA Calculator Combine semesters or courses using credits or explicitly selected weights. Calculators

Marks Percentage Calculator Calculate a total marks percentage across subjects with different maximum marks. Calculators

Required Marks Calculator Find the score needed on remaining work to reach a target overall percentage. Calculators

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About Calculators

Use free online calculators for quick, practical math without opening a spreadsheet. Calculate percentages, discounts, tips, date differences, age, BMI, loans, mortgages, random numbers, and number-to-word conversions. Results appear instantly in your browser and are intended for everyday planning, estimates, and learning.