How Long Been Together Calculator

In the whirlwind of daily life, special moments like anniversaries can sometimes slip by unnoticed. Whether you’re a starry-eyed couple who celebrates each passing month or a long-wedded duo, keeping track of exactly how long you’ve been together can be both meaningful and fun. To help you precisely mark these joyous times, various “how long been together calculators” have emerged. These handy tools make it easy to not just remember anniversaries but also to revel in the minor milestones that paint the full picture of your relationship’s journey.

how long been together calculator

Online Date Calculator

One straightforward method for finding out how long you’ve been with your partner is using an online date calculator. These calculators are user-friendly and accessible to anyone with an internet connection.

  1. Navigate to your preferred online calculator website.
  2. Enter the Start Date (the day you began your relationship).
  3. Enter Today’s Date or the End Date you’re inquiring about.
  4. Click ‘Calculate’ or the equivalent button to get your result.

Summary: Online date calculators are incredibly convenient, offering immediate results without the need for any software or apps. However, they generally provide basic calculations and might not feature the more nuanced relationship milestones.

Smartphone Countdown App

For those always on the go, smartphone countdown apps offer a way to keep track of your relationship’s length right in your pocket.

  1. Download a countdown app from your phone’s app store.
  2. Set up your profile and enter your relationship’s start date.
  3. The app automatically calculates how long you have been together.

Summary: These apps are great for continuous tracking and can often provide notifications for upcoming milestones. Though user-friendly, they can vary in accuracy depending on the app’s quality, and they require you to have a compatible smartphone.

Excel or Spreadsheet Formula

If you’re comfortable using Excel or similar spreadsheet programs, they can be a powerful tool to calculate your relationship’s duration.

  1. Open your spreadsheet software.
  2. Enter your start date in one cell.
  3. Enter today’s date in another cell.
  4. Use a datedif formula to calculate the difference between the two dates.

Summary: The benefit of using a spreadsheet is its customization and extended functionality for those who know how to use it. The downside is that it requires a basic understanding of spreadsheet formulae and isn’t as straightforward as other methods.

DIY Calendar Count

For those who like a hands-on approach, manually counting the days on calendars can be surprisingly satisfying.

  1. Find a calendar – printed or digital.
  2. Mark your relationship’s start date.
  3. Count the days up to today’s date.

Summary: This manual method is rewarding and provides a visual representation of time spent together. However, it’s time-consuming and more prone to human error.

Custom Built Relationship Calculator

With some basic programming skills, you can create a personalized “how long been together calculator.”

  1. Choose a programming or scripting language like JavaScript.
  2. Write a script that calculates the difference between two dates.
  3. Run it on your computer or integrate it into a webpage.

Summary: A custom-built calculator is highly personalized, and you can tailor it to include any specific features you want. It does, however, require some technical prowess that might not be accessible to everyone.

Ask a Virtual Assistant

Smart virtual assistants like Siri, Alexa, or Google Assistant can help you determine how long you’ve been with your partner.

  1. Set a ‘relationship’ reminder on the date you became a couple.
  2. Ask your virtual assistant how long it’s been since your ‘relationship’ reminder date.

Summary: Using virtual assistants is quick and intuitive, and they can be accessed on numerous devices. The limitation is their reliance on good internet connection and the accuracy of the inputted reminder date.

Using an Anniversary Journal

Keeping a dedicated anniversary journal is a sentimental way to track the length of your relationship.

  1. Buy a journal or notebook.
  2. Record the start date of your relationship on the first page.
  3. Add entries each year on your anniversary.

Summary: An anniversary journal offers a tangible keepsake with personal importance. Its reliance on annual manual input, however, means it’s not the best choice for exact day-to-day calculations.

Online Relationship Duration Posts

If you’re active on social media, you can refer to your previous anniversary posts to help gauge how long you’ve been together.

  1. Scroll through your social media profile.
  2. Locate your past anniversary posts.
  3. Note the date and calculate the time passed since then.

Summary: This approach uses your existing social media as a historical record, providing you with a nostalgic trip down memory lane. Unfortunately, the accuracy depends on the consistency of your posts. is a reliable and comprehensive website that provides a dedicated time-between-dates calculator.

  1. Visit
  2. Click on ‘Duration Calculator’ found in the ‘Calculators’ section.
  3. Input your relationship’s start date and today’s date.
  4. Review your detailed duration results.

Summary: is user-friendly with detailed results, but it requires an internet connection and does not offer a more personal or ongoing tracking method.

Ask Friends or Family

Reaching out to close friends or family who may remember can add a personal touch to learning how long you’ve been together.

  1. Contact friends or family who were present at the start of your relationship.
  2. Inquire if they remember the date or event when you got together.
  3. Use this date as a reference for your calculations.

Summary: This method is personal and can evoke warm memories, but it’s highly subjective and not as reliable as other technical solutions.

In concluding, discovering the length of time you and your partner have been together can be both meaningful and fun. There is a range of tools and methods available, each with its unique benefits and potential downsides. By choosing the solution that best fits your comfort with technology and personal preference, you can easily celebrate every milestone in your relationship’s journey.


Q1. Can these calculators also be used for counting down to future anniversaries?
Yes, many of the online calculators and smartphone apps offer features that allow you to count down to future events, such as anniversaries.

Q2. If I don’t know the exact start date, how can I calculate how long we’ve been together?
You could estimate the date based on significant events or by asking friends and family. Some tools allow you to use approximate dates, but keep in mind that this would yield an estimate, not an exact duration.

Q3. Are there any privacy concerns with entering my relationship’s start date into online calculators?
Some users might have privacy concerns when entering personal data online. It’s important to use reputable websites and apps that ensure user data privacy and avoid those that seem untrustworthy or require unnecessary personal information.

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