Create an Online Date Calculator [No Code!]

Want a simple way to make an online date calculator? No coding needed! Follow this easy guide to build one fast using no-code tools.

Approximate read time: 5.5 minutes

If you want to help site visitors with travel planning, appointment scheduling, or estimating delivery dates, a good date calculator can improve the user experience on your site.

And it can be super simple to do. 

In fact, with the right WordPress plugin, you won’t even have to write a line of code! Phew!  

Let’s look at a few ways date calculators can help your website. Then, we'll see how easy it is to create our own.

Who can use a date calculator on their website?

• 🛍️ eCommerce sites - Show customers when they’ll receive their order with different delivery options with a shipping calculator
• 🛫 Travel & tour providers - Find travel dates or add a visa calculator to count the total number of days spent in a country during a certain period
• 🩺 Health & well-being - Offer a pregnancy due date calculator, suggest dates for follow-up appointments, or track how long patients have kept up healthy habits
• 🎪 Event websites - Get people excited for your event with a countdown to a specific date and time

And those are only a few ways this tool can benefit you and your site visitors. 

Now we know what's possible, let’s look at the fastest and easiest way to create a date calculator for WordPress — the Formidable Forms Datepicker Options plugin!

Formidable Forms online date calculator builder

Formidable Forms has already made building custom online calculators easy. 

Our WordPress calculator plugin comes with pre-built templates for making mortgage calculators, age calculators, time addition calculators, BMI calculators, and more. 

And now, thanks to Formidable’s new and improved time and datepicker, you can also create date-to-date and date-difference calculators.

The plugin even lets you black out dates to exclude weekends and holidays.

So, whether you need to know the date 365 days from today or want to determine how long it took to complete a project, Formidable has you covered. 

How to make a date calculator online without coding

Step 1: Install and activate Formidable Forms

If you haven't already, install and activate Formidable Forms Pro.

Then, from your WordPress dashboard, go to Formidable → Add-Ons and click the Install button for the WordPress Datepicker Options plugin.

Step 2: Create a form with at least one date field

Next, click Forms → + Add New to make a new form. Choose one of our templates or Create a blank form to create your own from the ground up.

In the drag and drop form builder, add fields to your form.

For this example, we want our time calculator to tell us the date a certain number of years, months, weeks, or days before or after another date.

So, let’s go ahead and add date fields, radio buttons, and a number field.

Got it all set up? Great!

Now it’s time to work magic and make our form do the math for us.

Step 3: Set up date calculations

So our calculator can crunch the numbers, we need to add formulas to our second date field.

Oh no, not equations. Don’t panic — we promise it’s way easier than in Excel! 

All we need to do is double-click the result date field to display the Field Options.

Under the Advanced section, click the calculate button in the Default Value box to access date calculations.

Set the Start date, then use the Date Difference field to insert dynamic values from other form fields or a preset formula.

Here are a couple of shortcodes and calculations that can help:

Date difference calculator

To calculate the number of days, weeks, months, or years between two dates

• Current date and a future date
  • Start date: [date]
  • Date difference: [end date field id] - [start date field id] 

• Two chosen dates
  • Start date: [start date field id]
  • Date difference: [end date field id] - [start date field id] 

Want to include the last day? Add 1 to the formula, and you're good to go!

Find the date a certain amount of time before or after a date

Add to or subtract from the starting date

• Start date: [start date field id]
• Date difference: [operator][period][start date field id] 

Check out our article on calculating a day from a date for more details. You can also find the accepted date formats and supported formulas in this knowledge base post.

Step 4: Publish your form!

Still with us? Awesome, you’re almost finished!

The last thing left is to publish your date calculator on your website. And fortunately, Formidable Forms make it even easier than algebra.

First, click Update in the upper right corner of the form builder to save your calculator form. Then, open the WordPress post or page where you want to publish it.

Add the Formidable Forms block in the WordPress editor and pick your calculator from the dropdown.

Update or Publish the page or post, and you’re all done! Your custom date calculator is now online! 🙌

Ready to add an online date calculator to your website?

The many benefits of web calculators add up. And the biggest may be a boost in backlinks.

By making a helpful tool visitors love, you will get more shares and multiply traffic and engagement.

And now that you know there’s such a quick and easy way to build a WordPress date calculator without code (or calculus), what are you waiting for?

Grab the only WordPress form maker you'll ever need now and watch your website grow exponentially!

If you were wondering, Formidable Forms can do much more than create date calculators. It's the most powerful WordPress form builder, perfect for making surveys, signup forms, online quizzes, charts, and graphs.

Read more from the Formidable blog

• How to Create a WordPress Calculator with Formidable Forms
  Read More

  WordPress Calculators: The Ultimate Guide
  Read More

  8 Best Request a Quote WordPress Plugins
  Read More