LifeStatistics.net
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Life Stats Calculator
See your exact age in live units, estimated heartbeats, breaths, blinks, sleep, red blood cells, Earth and Moon cycles, births, and CO2 context.
Life Expectancy Calculator
Compare your current age with recent World Bank life expectancy data by country and sex, with remaining years, months, weeks, days, and clear limits.
Life Calendar in Weeks
Create a private life calendar from your birth date. See exact age, days and weeks lived, current life week, estimated weeks remaining, and progress.
Time Spent Calculator
Estimate how much of your life has gone to sleep, work, screens, commuting, exercise, learning, relationships, and a custom activity.
Remaining Weekends Calculator
Estimate weekends left in a chosen planning horizon, including exact Saturdays, Sundays, the next weekend, birthdays, New Years, and calendar context.
Life Milestones Calculator
Find when you reach 1,000, 10,000, or 25,000 days old, 1,000 weeks, 500 months, and one or two billion seconds, with a timeline.
Age Calculator
Calculate your exact age in years, months, and days, plus total weeks, hours, seconds, next birthday, leap days, and age milestones.
Age Difference Calculator
Compare two birthdays to find who is older, the exact age gap in years, months, and days, plus total days, hours, seconds, and midpoint.
Days Calculator
Count days between two dates, include or exclude endpoints, add or subtract days, and calculate business-day offsets with optional U.S. holidays.
Weeks Calculator
Calculate weeks between two dates or add and subtract weeks. See complete weeks, leftover days, weekdays, weekends, and exact date results.
Months Calculator
Calculate complete months between dates or add and subtract months with transparent month-end handling, remainder days, and elapsed-day totals.
Years Calculator
Calculate complete years between two dates or add and subtract years. See months, days, leap days, decimal years, and anniversary adjustments.
Date Duration Calculator
Calculate the duration between two dates in years, months, days, weeks, hours, minutes, and seconds, with optional local times and workday context.
Countdown Calculator
Calculate the time until or since any event in days, hours, minutes, and seconds. Name the event, set local times, and optionally track progress.
Birthday Countdown
Calculate how many days until your next birthday, the age you will turn, birthday-year progress, and your next five birthday dates with weekdays.
Birthday Facts Calculator
Find birthday facts by date of birth: weekday born, exact age, days and minutes old, leap-year details, zodiac, Chinese zodiac, and every birthstone.
What's My Zodiac Sign?
Use this free zodiac sign calculator to find your Western sun sign by birthday. See zodiac dates, symbol, element, modality, ruler, and cusp notes.
Chinese Zodiac Calculator
Find your Chinese zodiac animal and element by full birth date. Uses verified Lunar New Year boundaries and shows all 12 animals in the zodiac cycle.
Birthstone Calculator
Find every birthstone for your birth month. Compare recognized stones, colors, gem types, distinctive features, and practical jewelry care guidance.
How to Calculate Age
Learn how to calculate exact age from a date of birth in years, months, and days, with leap-year rules, date examples, total days, and common mistakes.
Leap Year Birthday Guide
Learn how February 29 birthdays work in non-leap years, when the next leap year occurs, and why February 28 or March 1 rules can differ.
Days Between Dates Explained
Learn how to count days between two dates, including elapsed and inclusive days, endpoints, business days, leap years, and timezone pitfalls.
Date Duration vs Days Between Dates
Compare date duration in years, months, and days with total days between dates, and choose the right calculation for deadlines, age, and planning.
Zodiac Signs by Date
Explore all 12 Western zodiac signs by date, including sign ranges, symbols, elements, modalities, ruling planets, cusp limits, and calculator guidance.
Chinese Zodiac by Birth Date
Find Chinese zodiac signs by birth date, understand Lunar New Year boundaries, and explore the 12 animals, five elements, stems, and branches.
Birthstones by Month
See birthstones by month, including accepted alternate stones, colors, gem types, symbolism, list differences, and practical jewelry care.
How to Read a Life Calendar in Weeks
Learn how a life calendar in weeks works, calculate weeks lived, choose a planning horizon, read the grid, and use it without treating it as a prediction.
How Life Expectancy Calculators Work
Learn how life expectancy calculators use population data, why country and sex averages differ, how remaining years are estimated, and what they cannot predict.
How Many Weekends Are in a Year?
Find how many weekends are in a year, why Saturday and Sunday totals vary, and how to calculate weekends for any year or planning period.
Time Audit Guide
Learn how to run a practical time audit, convert daily habits into monthly and yearly totals, spot overlaps, and make realistic changes to your schedule.