Age Calculator
CalculatorsCalculate exact age in years, months and days between any two dates — instantly in your browser.
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Date Calculator
CalculatorsCalculate the number of days between two dates, or add or subtract days from a date — years, months and days, instantly.
Discount Calculator
CalculatorsCalculate the discount amount and final price from any original price and percentage off, instantly.
Percentage Calculator
CalculatorsCalculate percentages, percentage change, and what percent one number is of another — instantly in your browser.
About Calculators
Simple, accurate calculators for everyday math — percentages and age — without ads or unnecessary steps.
Who it's for: Students, shoppers, and anyone who needs a quick, reliable calculation without opening a spreadsheet.
Common use cases
- Calculating a discount or percentage increase/decrease
- Finding your exact age in years, months, and days
- Checking percentage change between two numbers
How to choose the right tool
Use the Percentage Calculator for discounts, tips, or growth calculations, and the Age Calculator for exact age in years, months, and days from a birth date.
Frequently asked questions
Are the calculators accurate for financial decisions?
They perform standard arithmetic correctly, but for financial or legal decisions, verify with a professional where it matters.
Can I calculate percentage decrease as well as increase?
Yes, the Percentage Calculator supports both directions.