Datumverschil Calculator
Bereken direct het verschil tussen twee datums in dagen, weken en maanden.
Ondersteunt ook het optellen of aftrekken van dagen van een datum.
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About
A free online calculator that instantly computes the difference between two dates in days, weeks, months, and years. Perfect for project planning, anniversaries, and deadline management.
The date addition mode answers "What date is 30 days from today?" All processing is browser-based with no server uploadss.
How to Use
Select Mode
Choose date difference or add/subtract days mode.
Enter Dates
Use the date pickers to input your dates.
View Results
Results update in real time as you change the dates.
Glossary
- Day Difference
- The number of calendar days between two dates, calculated precisely.
- Leap Year
- A year with 366 days (Feb 29 exists). Divisible by 4, except century years unless divisible by 400.
- Gregorian Calendar
- The internationally used solar calendar. JavaScript date arithmetic is based on it.
- UTC
- Coordinated Universal Time — the international time standard.
FAQ
- Q.Is my data sent to a server?
- No. All calculations are performed entirely within your browser.
- Q.What if the end date is before the start date?
- The tool will return the absolute difference in days (negative numbers are not shown).
- Q.Why are months and years approximate?
- Because month lengths vary (28–31 days), exact counts depend on the specific months. This tool uses 30.44 days per month as an approximation.
- Q.Can I calculate business days (excluding weekends)?
- This tool calculates total calendar days. For business days excluding weekends and holidays, please use our Business Day Calculator.
Use Cases
🎂 Birthdays & Anniversaries
Find how many days until the next celebration.
📋 Project Planning
Calculate days remaining until a deadline.
✈️ Travel
Check how long your trip will be.
📄 Contracts
Calculate days between contract start and end.
Feedback sturen
Laat ons uw mening weten om ons te helpen de tool te verbeteren.
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