Loading...
Date tool
Calculate the number of days between two dates, or add and subtract days from any date. Instant results, no sign-up needed.
Common uses
Find the exact number of days between any two dates. Useful for project deadlines, vacation planning, pregnancy calculators, or counting down to events like weddings and exams.
Calculate a future date by adding a specific number of days. Great for loan terms, delivery estimates, contract deadlines, warranty expiration, or medication schedules.
Find a past date by subtracting days. Useful for warranty periods, return windows, historical research, or calculating when an event happened.
Practical examples
Calculate the number of working days between a project start date and deadline. Enter the two dates and the calculator shows the exact day count. Use this to estimate resource allocation and milestone scheduling.
Find out how many days until your vacation by subtracting today's date from the departure date. Or calculate the length of a multi-city trip spanning different months.
Many legal filings, tax submissions, and financial contracts have specific day-count requirements. Use the calculator to find the exact deadline from a given start date.
Track how many days since you started a fitness program, diet, or health habit. Enter the start date and today's date to see your progress streak.
Calculate days until exam dates, assignment deadlines, or the end of a semester. Students use this to plan study schedules and manage their time effectively.
Find the exact number of days between birth dates for age comparisons, or calculate days between anniversaries and important milestones.
Frequently asked questions
Select the "Days between" mode, enter a start date and an end date, then click Calculate. The result shows the exact number of days between the two dates, accounting for different month lengths and leap years.
Yes. The calculator correctly handles February 29 in leap years. When crossing a leap year boundary, the day count includes the extra day. This makes it accurate for any date range spanning multiple years.
Yes. Select the "Add days" mode, enter today's date (or any starting date), enter 30 in the number of days field, and click Calculate. The result shows the exact future date, accounting for varying month lengths.
Select the "Subtract days" mode, enter today's date, enter 90 in the number of days field, and click Calculate. The result shows the exact past date, correctly handling month and year boundaries.
Yes, the date calculator is completely free. There are no limits on how many times you can use it, no sign-up required, and no ads on the results. All calculations happen instantly in your browser.