MULTI CALCULATOR
Calculate Percentage Change
Percentage Change:
Calculate Amount from Percentage
New Amount:
Age Calculator
Date Calculator
Advanced Calculator
How to Use
- Percentage: Use “Calculate Change” or “Calculate Amount” as per formula inputs.
- Age: Select Birth date and (optionally) a base date, then click Calculate.
- Date: Enter any two dates, click Calculate for days between.
- Advanced: Use scientific and number pad, supports keyboard input.
Tips & Features
- No internet needed after page load (works offline).
- Mobile/tablet friendly, automatic layout shift.
- If calculator errors, check your inputs.