Calculate the exact number of days, weeks, months, or years between two dates.
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Enter Your Measurements
Results
Months (approx)
12
Days
364
Weeks
52
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Formula
Difference = End Date - Start Date
How to Use This Calculator
How to Use
- 1
Enter the start date.
- 2
Enter the end date.
- 3
Get the difference in days, weeks, and months.
Frequently Asked Questions
Frequently Asked Questions
Does this include both start and end dates?
The calculation shows the difference between dates. One common convention is to include the start date, making a 1-day span = 1 day.
Are leap years accounted for?
Yes, the calculator properly accounts for leap years in its date calculations.
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About This Calculator
This calculator uses the formula: Difference = End Date - Start Date. All calculations follow industry-standard methods. Results are estimates — always verify with a licensed professional for structural or code-compliant work.
Built and maintained by the CalcSmart team. Last updated March 2026.
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