Our calculator determines your exact age by computing the difference between your birth date and the current date. We account for leap years, varying month lengths, and time zones to provide the most accurate results.

Beyond curiosity, your precise age can be important for legal documents, retirement planning, insurance policies, and medical assessments. Our calculator helps you know your age down to the second.

• 1,000 days: Early childhood milestone
• 10,000 days: Around 27 years, often when careers solidify
• 20,000 days: About 54 years, approaching retirement planning
• 1 billion seconds: Approximately 31.7 years
• 2 billion seconds: Around 63.4 years

• The average human heart beats 2.5 billion times in a lifetime
• Humans typically take about 672,768,000 breaths in a lifetime
• The world's oldest documented person lived to 122 years
• In some cultures, a person is considered 1 year old at birth