| What it does | Free exact age calculator in years, months and days for educators, clinicians and parents
| Free online calculators for everyday math, percentages, dates, conversions, and more
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| Pricing model | Free
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| Key features | - Instant calculation of exact age in years, months, and days
- Multiple output formats including test format (Y;M;D), decimal years, total days, weeks, and hours
- Automatic leap year handling
- Exact month length calculation using actual days per month
- Custom reference date selection for past or future dates
- No registration or sign-up required
- Browser-based calculation with no data storage
- Clean interface without ads or clutter
- Results in standardized test format
| - Percentage calculator for discounts, tips, and percent change
- Date and time calculators for age, date differences, and time zones
- Math calculators for fractions and statistics
- Financial calculators for interest and taxes
- Unit converters for length, weight, and temperature
- Education tools for GPA and grade calculations
- Instant calculations with no server responses
- Mobile friendly responsive design
- Educational explanations and formulas included
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| What makes it different | - Built specifically for professionals who need accurate age calculations for standardized assessments and school placement decisions
- Completely private with all calculations done in your browser and no data collection
- Handles edge cases that trip up manual calculation like leap years and month-end dates
- Free alternative to discontinued publisher tools that professionals previously relied on
| - All calculations run in your browser with no data storage or transmission
- Instant client-side JavaScript calculations with no server delay
- Privacy-first approach where numbers never leave your device
- Fully responsive design works on all device types
- Educational content with formulas and examples for each calculator
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 11 ● no change since last check | 1 ● no change since last check |
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| Trust Flow (Majestic) | 3 | 4 |
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| Citation Flow (Majestic) | 20 | 1 |
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| Referring domains (Majestic) | 59 | 2 |
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Chronological Age Calculator
CalcWell