Title: calculate.at Calculators
Author: calculateat
Published: <strong>September 2, 2026</strong>
Last modified: September 2, 2026

---

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![](https://s.w.org/plugins/geopattern-icon/calculate-at-calculators.svg)

# calculate.at Calculators

 By [calculateat](https://profiles.wordpress.org/calculateat/)

[Download](https://downloads.wordpress.org/plugin/calculate-at-calculators.1.0.0.zip)

 * [Details](https://wordpress.org/plugins/calculate-at-calculators/#description)
 * [Reviews](https://wordpress.org/plugins/calculate-at-calculators/#reviews)
 *  [Installation](https://wordpress.org/plugins/calculate-at-calculators/#installation)
 * [Development](https://wordpress.org/plugins/calculate-at-calculators/#developers)

 [Support](https://wordpress.org/support/plugin/calculate-at-calculators/)

## Description

This plugin adds a `[calculate_at]` shortcode that embeds a free, fully working 
calculator from [calculate.at](https://calculate.at) directly into a post or page.
No API key, no account, no configuration — pick a calculator, drop in the shortcode,
done.

**Available calculators:**

 * `tip-calculator` — Tip Calculator
 * `mortgage-calculator` — Mortgage Calculator
 * `bmi-calculator` — BMI Calculator
 * `percentage-calculator` — Percentage Calculator
 * `miles-to-km` — Miles to Kilometers Converter

**Example:**

    ```
    [calculate_at calculator="mortgage-calculator"]
    ```

The embedded calculator is a live iframe — it runs the same code as the calculator
on calculate.at, so it stays up to date automatically. It auto-resizes to fit its
content (no fixed height, no scrollbar, no dead space), and includes a small attribution
footer linking back to calculate.at and the specific calculator page.

**Want a calculator that isn’t listed?** More calculators can be added on request—
[contact calculate.at](https://calculate.at/embed-calculators/) with what you need.
calculate.at also takes requests to customize an existing calculator, translate 
one into another language, or build a new one from scratch.

This plugin is a client for the free calculate.at service — see [calculate.at’s Terms of Use](https://calculate.at/terms/).
No account, API key, or registration is required to use it; the embedded calculators
are free and publicly accessible.

## Installation

 1. Install and activate the plugin through the WordPress admin, or upload the plugin
    folder to `/wp-content/plugins/`.
 2. Add the shortcode to any post or page, e.g. `[calculate_at calculator="tip-calculator"]`.
 3. That’s it — no configuration needed.

## FAQ

### Which calculators can I embed?

See the list in the Description section above. More may be added over time — check
calculate.at/embed-calculators/ for the current list.

### Does this slow down my site?

The calculator loads in an iframe, so it doesn’t block your page’s own JavaScript.
One small inline script is added once per page (regardless of how many calculators
you embed) to handle auto-resizing.

### Can I embed more than one calculator on the same page?

Yes — use the shortcode multiple times with different `calculator` values.

### Is this free?

Yes — the plugin and every calculator it embeds are free, provided the attribution
footer (the small “calculate.at” and calculator-name links under the embed) stays
intact. That footer is how this stays free to use. If you need a white-label version
without it, [contact calculate.at](https://calculate.at/embed-calculators/) — custom
and white-label builds are available on request.

## Reviews

There are no reviews for this plugin.

## Contributors & Developers

“calculate.at Calculators” is open source software. The following people have contributed
to this plugin.

Contributors

 *   [ calculateat ](https://profiles.wordpress.org/calculateat/)

[Translate “calculate.at Calculators” into your language.](https://translate.wordpress.org/projects/wp-plugins/calculate-at-calculators)

### Interested in development?

[Browse the code](https://plugins.trac.wordpress.org/browser/calculate-at-calculators/),
check out the [SVN repository](https://plugins.svn.wordpress.org/calculate-at-calculators/),
or subscribe to the [development log](https://plugins.trac.wordpress.org/log/calculate-at-calculators/)
by [RSS](https://plugins.trac.wordpress.org/log/calculate-at-calculators/?limit=100&mode=stop_on_copy&format=rss).

## Changelog

#### 1.0.0

 * Initial release: tip, mortgage, BMI, percentage, and miles-to-km calculators.

## Meta

 *  Version **1.0.0**
 *  Last updated **3 days ago**
 *  Active installations **Fewer than 10**
 *  WordPress version ** 5.0 or higher **
 *  Tested up to **7.1**
 *  PHP version ** 7.0 or higher **
 * Tags
 * [bmi calculator](https://wordpress.org/plugins/tags/bmi-calculator/)[calculator](https://wordpress.org/plugins/tags/calculator/)
   [mortgage calculator](https://wordpress.org/plugins/tags/mortgage-calculator/)
   [percentage calculator](https://wordpress.org/plugins/tags/percentage-calculator/)
   [unit converter](https://wordpress.org/plugins/tags/unit-converter/)
 *  [Advanced View](https://wordpress.org/plugins/calculate-at-calculators/advanced/)

## Ratings

No reviews have been submitted yet.

[Your review](https://wordpress.org/support/plugin/calculate-at-calculators/reviews/#new-post)

[See all reviews](https://wordpress.org/support/plugin/calculate-at-calculators/reviews/)

## Contributors

 *   [ calculateat ](https://profiles.wordpress.org/calculateat/)

## Support

Got something to say? Need help?

 [View support forum](https://wordpress.org/support/plugin/calculate-at-calculators/)