Square Footage Calculator
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An age calculator determines the exact elapsed time from a birth date to today (or any target date), accounting for varying month lengths and leap years.
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Tip: Leap years: divisible by 4, except years divisible by 100, unless also divisible by 400. So 2000 was a leap year; 1900 was not.
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Fun Fact
If you live to 80, you will have been alive for about 29,200 days — over 700,000 hours.
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