Date Calculator: Find Any Date, Birthdays, Due Dates, and More Easily!

A Date Calculator is an online tool that helps you quickly compute information between two dates. You can:

  • Find your date of birth based on age

  • Calculate your gestational age or pregnancy due date

  • Track year-to-date (YTD) income

  • Calculate period start dates

  • Find days between two dates

  • Estimate retirement dates and more!

Date calculators are essential for planning, health tracking, financial estimations, and even fun (like figuring out your friend’s real birthdate!).

Date-to-Date Calculator

Calculate date differences, add/subtract days, find business days, countdown, and more!

Days Between Two Dates

Add/Subtract Days

Business Days Calculation

Countdown Timer

Recurring Date Finder

Age in Future/Past Dates

🗓️ Free Date Calculator Online – Calculate Days Between Dates Instantly

Welcome to CalcAndSave.com’s Date Calculator, your simple, accurate, and powerful online tool to calculate days between two dates, add or subtract days to a date, and more. Whether you’re planning a trip, counting down to an important event, or managing projects, this free tool will help you save time and effort.

Try the tool now and get instant answers with zero confusion.

🔧 What is a Date Calculator?

A Date Calculator is a digital tool that helps you compute:

  • The number of days between two dates

  • A future or past date by adding or subtracting days

  • Weekdays only (excluding weekends)

  • Business days or custom workdays

It’s widely used by students, professionals, HR managers, accountants, and event planners.

✨ Key Features of Our Free Online Date Calculator

✅ Days Between Dates – Instantly find how many days lie between any two calendar dates
✅ Add/Subtract Days – Add or subtract days, weeks, or months from any date
✅ Find Future or Past Dates – Discover what date falls after a given number of days
✅ Business Days Calculator – Optionally skip weekends and holidays (soon with holiday database)
✅ Clean Interface – Mobile-friendly and clutter-free
✅ No Signup Required – 100% free and accessible to everyone

📈 Why Use Our Date Calculator?

  • 🕒 Saves time — No need to manually count calendar days

  • 🔁 Versatile use cases — Whether you’re tracking pregnancy milestones, project deadlines, or financial due dates

  • 🌍 Accessible from anywhere — Works on desktop, tablet, and mobile

  • ✅ Privacy-friendly — We don’t collect personal data

🔍 Use Cases for Date Calculator

👩‍⚕️ Health & Pregnancy Tracking

  • Calculate due dates or trimester milestones

🧑‍💼 HR & Payroll

  • Determine probation periods, work anniversaries, or leave calculations

📅 Event Planning

  • Find days remaining till a birthday, wedding, or vacation

💼 Business Deadlines

  • Estimate invoice due dates or submission timelines

📚 Academic Use

  • Determine study duration, days till exams, or project deadlines

🔢 How to Use the Date Calculator

Step 1: Select the tool mode – “Calculate Days Between” or “Add/Subtract Days”
Step 2: Enter the date(s) in the calendar input box
Step 3: Choose if you want to include weekends or business days only
Step 4: Click “Calculate” and get your result instantly

🧠 Smart Features Coming Soon

  • ✅ Holiday calendar integration

  • ✅ Timezone-aware calculations

  • ✅ Recurring event support (e.g., birthdays, renewals)

📦 Embed & Share the Tool

Want to share this calculator with your friends, blog, or website visitors? Embed our calculator widget easily or share via a direct link.

💬 FAQs – Date Calculator

❓Can I calculate only weekdays between two dates?

Yes! Just check the “Weekdays only” option before you calculate.

❓Is this tool really free?

Absolutely. CalcAndSave.com tools are always 100% free with no sign-up.

❓Can I calculate past dates?

Yes. Just enter the start date and subtract days to get a past result.

❓Will this work on mobile?

Yes! All our tools are mobile-responsive.

❓Can I save or print the results?

Yes, we are working on a “Print” and “Export to PDF” feature soon.