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Calculate exact age in years, months, days, hours, and minutes. Enter date of birth — see your age in every unit. Free.

Calculate how many days old you are exactly. Enter date of birth — see total days alive with milestones like day 10,000. Free.

Biological age from lifestyle factors. Enter your values — see the result with formula, examples, and step-by-step working. Free.

Your age in dog years using new scientific formula. Based on veterinary guidelines. Instant result with breed notes and feeding chart.

Convert your cat age to human years using the latest veterinary formula. Based on veterinary guidelines. Instant result with breed notes and feeding chart.

State pension retirement age by birth year UK. Instant result with amortization table, formula and chart. Free financial calculator.

Estimate life expectancy based on lifestyle and health factors. Enter age, habits, and health data — see projected lifespan and years gained by changes. Free.

Calculate the age difference between two people. Enter both birthdates — see the gap in years, months, and days. Free.