Embed Free Running Pace & Marathon Split Calculator On Your Site

Convert between finish time, distance, and minutes per mile/km for 5K, 10K, half-marathons, and full marathons. Tailored for Running Clubs, Marathon Organizers & Triathlon Coaches. Embed an interactive calculator iframe directly on your site without user logins or API keys.

Free embed

No ads inside embed

Mobile responsive

HTTPS secured

Customize Embed Options

Theme Mode

Widget Height520px

HTML iFrame Code

<!-- Free Running Pace & Marathon Split Calculator by Ubify Tools -->
<iframe 
  src="https://ubifytools.com/embed/pace-calculator" 
  width="100%" 
  height="520" 
  style="border:1px solid rgba(255,255,255,0.15); border-radius:12px; max-width:100%; box-shadow:0 4px 20px rgba(0,0,0,0.08);" 
  title="Running Pace & Marathon Split Calculator"
  loading="lazy">
</iframe>
<p style="font-size:11px; color:#888; text-align:right; margin-top:4px;">
  Free Calculator by <a href="https://ubifytools.com" target="_blank" rel="noopener noreferrer" style="color:#3b82f6; text-decoration:underline;">Ubify Tools</a>
</p>

WordPress / CMS Shortcode

[iframe src="https://ubifytools.com/embed/pace-calculator" width="100%" height="520" frameborder="0" style="border:1px solid #e2e8f0; border-radius:12px;"]

Recommended For:

Marathon event registration websites helping runners plan pace targets
Running coach blogs teaching pacing strategy for race day
Shoe and gear review sites providing training pace calculators

Live Embedded Sandbox

View standalone tool

How to Embed This Calculator on Any Platform

1. WordPress (Block & Classic)

In the Gutenberg block editor, add a Custom HTML block, paste the snippet, and hit publish. In Elementor, drag the HTML widget into your column.

2. Webflow, Wix & Squarespace

Add an Embed or Code component to your page canvas. Paste the iframe snippet directly and set container width to 100%.

3. React / Next.js / Vue

Render the iframe JSX with src="https://ubifytools.com/embed/pace-calculator", loading="lazy", and responsive inline styling.

Worked Calculation Example

Scenario Parameters:

A runner preparing for a half marathon (13.11 miles) targeting a 1 hour 45 minute finish time (105 minutes = 6,300 seconds).

Mathematical Calculation:

Pace per mile = 6,300 s / 13.1094 mi = 480.57 s/mi = 8:01 min/mile. Pace per km = 480.57 / 1.60934 = 298.61 s/km = 4:59 min/km. Split checkpoints: 5K at 24:54, 10K at 49:48, 10 miles at 1:20:06, and finish at 1:45:00.

What the Result Means in Plain English:

Maintaining an even 8:01/mile pace keeps the runner on target for sub-1:45:00 without expending excess glycogen on early surges.

Privacy & Processing Note: The embedded pace widget runs entirely client-side inside an isolated iframe in the visitor's browser. Race splits, target distances, and finish times are never transmitted to any server.

Frequently Asked Questions

How do I embed this running pace widget on my website?

Copy the provided HTML iframe tag and insert it into any page or sidebar. It adapts responsively to mobile and desktop column widths.

Can runners calculate both mile and kilometer split times?

Yes. The widget displays both minutes per mile and minutes per kilometer alongside estimated split milestones for 5K, 10K, half marathon, and full marathon.

Does the embed require external scripts or API tokens?

No. The widget loads via standard HTML iframe with native lazy loading and zero external JavaScript dependencies.

Back to All Widget Generators Browse All Free Calculators →