Days Calculator
Calculate days between dates, add/subtract days, and calculate age with precision
About Days Calculator
Our Days Calculator is a comprehensive date calculation tool that helps you perform various date-related calculations with precision. Calculate the exact number of days between two dates, add or subtract days from any date, or calculate someone's exact age down to the day.
The calculator automatically handles leap years, different month lengths, weekends, and business days. Perfect for project planning, age calculation, event planning, and any situation where precise date calculations are needed.
Common Use Cases:
• Calculate project duration and deadlines
• Determine age in years, months, and days
• Plan events and count down to important dates
• Calculate business days for work scheduling
• Determine pregnancy due dates and milestones
• Calculate loan periods and payment schedules
• Plan vacations and travel itineraries
• Track anniversaries and birthdays
• Calculate retirement and investment timelines
• Academic semester and course duration planning
Frequently Asked Questions
How does the days calculator work?
Our days calculator uses JavaScript's Date object to perform accurate date calculations. It can calculate the difference between two dates, add or subtract days from a given date, and calculate age with precision down to days.
Can I calculate business days only?
Yes! The calculator includes an option to calculate business days only, which excludes weekends (Saturday and Sunday) from the calculation. This is useful for project planning and business scheduling.
What date formats are supported?
The calculator supports multiple date formats including MM/DD/YYYY, DD/MM/YYYY, YYYY-MM-DD, and natural language input. It automatically detects and converts between different formats for accurate calculations.
Can I calculate my exact age?
Yes! The age calculator feature shows your exact age in years, months, and days. It also shows how many days you've been alive and calculates upcoming birthdays and milestones.
Is the calculator accurate for leap years?
Absolutely! The calculator automatically accounts for leap years, different month lengths, and all calendar irregularities to provide 100% accurate date calculations.
Can I add or subtract days from a date?
Yes! You can add or subtract any number of days from a given date. The calculator will automatically handle month and year boundaries, leap years, and provide the exact resulting date.
Key Features
Multiple Calculation Types
Calculate days between dates, add/subtract days, or calculate exact age with multiple metrics.
Business Days Support
Option to calculate business days only, excluding weekends for accurate work scheduling.
Leap Year Accuracy
Automatically handles leap years and calendar irregularities for 100% accurate calculations.
Age Calculator
Calculate exact age with years, months, days, and additional metrics like total days lived.
Real-Time Results
Instant calculations with detailed results and multiple format options for copying.
User-Friendly Interface
Clean, intuitive interface with clear results and easy-to-use date inputs.