Percentage Calculator

Calculate percentages for discounts, tips, taxes, marks, and more. Select calculation type:

Basic Percentage

What is X% of Y?

Percentage Difference

What % of X is Y?

Percentage Increase

X increased by Y%

Percentage Decrease

X decreased by Y%

Enter the percentage value (e.g., 15 for 15%)
Enter the number you want to calculate the percentage of
Calculation Result
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Age Calculator

Calculate your exact age in years, months, and days. You can also calculate age at a specific future or past date.

Select your birth date
Leave blank to calculate age as of today
Age Calculation
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Years
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Months
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Days

About Percentage and Age Calculators

These free online calculators help you with everyday calculations:

  • Percentage Calculator: Calculate percentages for discounts, tips, taxes, exam scores, financial planning, and more. Supports four different calculation types.
  • Age Calculator: Calculate exact age in years, months, and days. Useful for birthday planning, retirement planning, age verification, and more.

Both tools are 100% free, work on all devices, and don’t require any registration. Your data is never stored or shared.

How to Use These Calculators

Percentage Calculator:

  1. Select the type of percentage calculation you need
  2. Enter the required values in the input fields
  3. Click “Calculate Percentage” to see the result
  4. Use “Clear All” to reset the calculator

Age Calculator:

  1. Select your birth date using the date picker
  2. Optionally select a specific date to calculate age at that date
  3. Click “Calculate Age” to see your exact age
  4. Use “Reset” to clear all fields

Calculation Formulas

Percentage Formulas:

  • Basic Percentage: (Percentage × Total) ÷ 100 = Result
  • Percentage Difference: (|Value1 – Value2| ÷ ((Value1 + Value2) ÷ 2)) × 100
  • Percentage Increase: Original × (1 + (Percentage ÷ 100)) = New Value
  • Percentage Decrease: Original × (1 – (Percentage ÷ 100)) = New Value

Age Calculation:

Age is calculated by finding the difference between two dates, accounting for varying days in months and leap years.

Frequently Asked Questions

Are these calculators free to use?
Yes, both calculators are 100% free with no hidden charges, registration requirements, or usage limits.
Is my data saved or shared?
No, all calculations are done in your browser. No data is sent to our servers or shared with third parties.
Do these calculators work on mobile devices?
Yes, both calculators are fully responsive and work perfectly on smartphones, tablets, and desktop computers.
Can I calculate future age?
Yes, in the age calculator, you can select any future date in the “Age at this Date” field to calculate how old you will be on that date.