Exact Age Calculator
Calculate Years • Months • Days • Astronomical Facts
AD (Anno Domini) / CE (Common Era)
Years in AD count forward from Year 1. For example, 2024 comes after 2023. It represents the "Common Era".
BC (Before Christ) / BCE (Before Common Era)
Years in BC count backward. The higher the number, the further back in history. For example, 500 BC happened before 100 BC. There is no "Year 0".
Our premium Age Calculator provides more than just a simple count of your years. Get a complete breakdown of your time on Earth, including exact months, weeks, days, and even seconds. Dive deeper into your cosmic identity with Sun signs, Chinese Zodiac, and the Moon phase at the moment of your birth. Whether you need an age check for legal forms or want to celebrate your 10,000th day on Earth, our tool has you covered.
How to Use
- Enter your date of birth using the date picker (supports BC/AD toggling)
- Choose the target date for calculation (defaults to today)
- Explore the real-time breakdown of your age in various time units
- Check your Cosmic Identity section for Zodiac and Moon phase info
- Scroll down to see upcoming milestones and your age on other planets
- Use the "Copy" function to share your detailed age report
Features
- Precise age calculation down to the second
- Support for historical BC dates (Astronomical Year Numbering)
- Real-time birthday countdown and upcoming milestones
- Zodiac & Chinese Zodiac sign identification
- Moon phase calculation for any historical birth date
- Space Journey stats: distance traveled through the galaxy since birth
- Planet-specific age calculation (Mercury, Mars, Jupiter, etc.)
- Copy-to-clipboard for easy sharing
Common Use Cases
- Finding your exact age for official documents and forms
- Tracking milestones like 10,000 days or 1,000 weeks lived
- Planning birthday parties and countdowns
- Educational use: understanding orbits and astronomical time
- Social sharing: sharing fun facts about your age on other planets
- Historical research: calculating ages of historical figures (BC support)
- Astrology and birth chart preparation
Tips & Best Practices
Use the BC toggle for historical calculations before the year 1 AD
Check the "Next Birthday" section to see exactly how many days are left until your next cake
Look at the "Journey in Space" section for mind-blowing facts about your movement through the universe
The Moon phase calculation is a great addition to your personal journal or birth records
Calculations automatically account for leap years and month length variations
