19 focused tools
All Tools
Browse free online calculators for exact age, dates, birthdays, life statistics, zodiac signs, birthstones, milestones, countdowns, and time planning.
Life Stats
Live personal numbers, life calendars, milestones, time use, weekends, and population context.
6 toolsLife 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.
Date & Time
Exact age, date differences, durations, offsets, and countdowns.
8 toolsAge 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
Next-birthday planning and detailed date-based birthday facts.
2 toolsBirthday 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.
Zodiac
Western zodiac, Chinese zodiac, and birthstone lookups with clear limits.
3 toolsWhat'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.