Math Calculators
Percentage, ratio, fraction calculators
Browse our collection of 5 free math calculators tools below. Every tool works entirely in your browser — no data is uploaded to servers, no account is needed, and results appear instantly. These tools are part of our Calculators category.
Percentage Calculator
Calculate percentages easily. Find percentage of a number, percentage change, percentage difference, and more. Free online percentage calculator.
Age Calculator
Calculate your exact age in years, months, and days. Also shows total months, weeks, days, and days until next birthday.
Discount Calculator
Calculate discount amount, final price after discount, and how much you save. Works with any percentage off.
Tip Calculator
Calculate tip amount, total bill, and split between multiple people. Quick preset buttons for common tip percentages.
GPA Calculator
Calculate your GPA from course grades and credit hours. Supports standard US 4.0 scale with plus/minus grades.