Days Between Dates Calculator
Pick any two dates and instantly get the exact number of days, weeks, months, and years between them.
Age Calculator
Enter your birthdate to calculate your age.
Days Until Calculator
Set a future date and see exactly how many days remain until that date.
Days Since Calculator
Set any past date and track exactly how many days, hours, and minutes have passed since that date.
Add/Subtract Days Calculator
Quickly add or subtract days, weeks, months, or years from any date.
Business Days Calculator
Calculate the number of business days between two dates, excluding weekends and holidays.
Week Number Calculator
Find the ISO week number for any date, or look up which dates fall within a specific week of the year.
Day of the Week Finder
Enter any date — past or future — and instantly find out what day of the week it falls on.
Quarter & Fiscal Period Finder
Find which fiscal quarter any date falls in — supports calendar year, US fiscal, UK fiscal, and custom start months.
Month Calculator
Calculate the number of days in a month, or add/subtract months from any date.
Leap Year Checker
Determine if a year is a leap year and calculate the number of days in February for any given year.
Deadline Probability Tool
Estimate the likelihood of meeting project deadlines based on historical data and current progress.
Recurring Date Generator
Generate a list of dates for recurring events based on a start date and interval.
Date Difference Breakdown
Calculate the difference between two dates in years, months, days, hours, minutes, and seconds.
Date Range Generator
Generate a list of dates between two specified dates, with options for custom intervals.
Fiscal Year Calculator
Calculate the fiscal year for any given date, supporting custom fiscal year start months.
Loan Subscription End Date Calculator
Calculate the end date of a loan or subscription based on a start date and duration.
Work Anniversary Calculator
Calculate the number of years since a specific date, useful for determining work anniversaries.
Project Timeline Calculator
Visualize your project schedule with a live Gantt chart and real-time duration stats.
Multi-Date Event Planner
Plan and manage events that span multiple dates, with reminders and notifications.
Pregnancy Due Date Calculator
Calculate your due date based on your last menstrual period or estimated conception date.
Age at Date Calculator
Calculate someone's age at a specific date, useful for historical or future age calculations.