Age Calculator – Instantly Know Your Exact Age

Our calculator is highly accurate. It accounts for leap years and the exact number of days in each month to give you a precise difference between the selected dates. The algorithm properly handles month and day carry-overs for exact calculations :cite[1]:cite[7].

Yes! While the 'To Date' defaults to today, you can select any date in the past or future to calculate your age or the time difference between two specific points in time. This is useful for planning future milestones or calculating historical ages :cite[7].

BMI is a simple measure based on height and weight. It does not account for factors like muscle mass, bone density, or ethnic background, so it's a general indicator and not a definitive measure of health. For a comprehensive health assessment, consult a healthcare professional.

Your age on other planets is based on that planet's orbital period (one full orbit around the sun), which is a 'year' for that planet. For example, a year on Mercury is about 88 Earth days, so you would be older in 'Mercury years'.

You'll need to provide your gender, age, weight, height, and activity level. The calculator uses the Mifflin-St Jeor equation, which is considered one of the most accurate formulas for estimating basal metabolic rate and daily calorie needs.