Date & Time

Business Days Calculator

Count the number of working days between two dates, excluding weekends and optional public

Pregnancy

Ovulation Calculator

Calculate your ovulation date and fertile window based on your last period and cycle lengt

Date & Time

Countdown Timer Calculator

Calculate the exact days, hours, minutes and seconds remaining until any future date and t

Everyday

Date Difference Calculator

Enter a start date and end date to calculate the difference in days. Perfect for planning

Date & Time

Working Days Calculator

Calculate the number of working days between two dates, excluding weekends and optional pu

Pregnancy

Due Date Calculator

Calculate your pregnancy due date from last menstrual period (LMP) or conception date. See

Date & Time

Age Calculator

Calculate your exact age in years, months and days from your date of birth.

Math

Debt Payoff Calculator

Calculate how long it will take to pay off a debt and total interest paid with fixed month

Date & Time

Add Days to Date Calculator

Add or subtract any number of days from a date to find a future or past date instantly.

Pregnancy

Fertile Window Calculator

Calculate your fertile window and most likely ovulation date based on your cycle length.

Date & Time

Calendar Week Number Calculator

Find the ISO week number of any date and see the start and end dates of that week.

Pregnancy

Menstrual Cycle Calculator

Track your menstrual cycle, predict next period, and calculate average cycle length from p

Pregnancy

Gestational Age Calculator

Calculate gestational age in weeks and days from the last menstrual period (LMP) or ultras

Date & Time

Unix Timestamp Converter

Convert between Unix timestamps and human-readable dates instantly. Supports current time

Finance

Pregnancy Trimester Calculator

Calculate which pregnancy trimester you are in and key milestones for each trimester.

Everyday

Zodiac Sign Calculator

Find your Western zodiac sign and personality traits based on your date of birth.

Everyday

Love Compatibility Calculator

Calculate fun love compatibility score between two people based on their names and birth d

Everyday

Numerology Calculator

Calculate your Life Path Number, Expression Number and Soul Urge Number based on your name

Pregnancy

Ovulation Calculator

Calculate your ovulation day and fertile window based on your last period date and cycle l