WP Manifestindependent plugin directory
manifest / utilities / multi-calc-wordpress-plugin

Multi Calculator

by Minhajul Khan · github.com/mktapphub/multi-calc-wordpress-plugin

★ 0stars

Install

Download source zip No release zip yet

This is the repository archive. It installs, but the folder name will carry the branch suffix and updates will not flow.

Install straight from GitHub with WP-CLI:

wp plugin install https://github.com/mktapphub/multi-calc-wordpress-plugin/archive/refs/heads/main.zip
No built-in updater. New versions won't appear under Dashboard → Updates. Install new releases yourself, or let Git Updater track the repository.
Readme github.com/mktapphub/multi-calc-wordpress-plugin ↗

A premium, mobile-first calculator suite for WordPress. Basic, Scientific, Percentage, BMI, Loan/EMI, Age, and Unit Converter — all in one.

Description

Multi Calculator Pro drops a polished, app-like calculator widget anywhere on your site via a simple shortcode:

[multi_calculator]

Included tools

  • Basic calculator (with live-preview result as you type)
  • Scientific calculator (trig, log, ln, sqrt, powers, constants)
  • Percentage calculator
  • BMI calculator
  • Loan / EMI calculator
  • Age calculator
  • Unit converter (length, weight, temperature)

Why it's different

  • No external API calls, ever. Every calculation runs entirely in the visitor's browser using a hand-written, dependency-free math engine. Nothing is sent to any server — not even yours.
  • No eval() / no Function() / no code execution. Expressions are tokenized and parsed by hand, so there is no code-execution surface for malicious input to exploit.
  • Security-first WordPress integration. Settings use the WordPress Settings API (nonces + capability checks handled for you), every output is escaped, all shortcode attributes are validated against strict allow-lists, and assets only load on pages that actually use the shortcode.
  • Premium UI. Rounded cards, soft shadows, smooth tab transitions, and a subtle "pop" animation on results — mobile-first and fully responsive, with automatic dark-mode support and a reduced-motion fallback for accessibility.
  • Fast. No jQuery dependency, no build step, no external fonts or CDNs. Two small vanilla-JS files and one CSS file.

Shortcode options

[multi_calculator]

tools="basic,bmi,loan" default="bmi"]`

  • title — heading text shown above the tabs.
  • tools — comma-separated list of tools to show: basic, scientific, percentage, bmi, loan, age, unit.
  • default — which tool tab is active on load.

Admin settings

Under Settings → Calculator Pro you can:

  • Pick an accent color
  • Enable/disable individual tools site-wide
  • Choose the default tool
  • Toggle rounded corners and animations

Installation

  1. Upload the multi-calc-pro folder to /wp-content/plugins/.
  2. Activate the plugin through the "Plugins" menu in WordPress.
  3. Add [multi_calculator] to any page, post, or widget.
  4. Optionally visit Settings → Calculator Pro to customize colors and enabled tools.

Frequently Asked Questions

Does this plugin send any data to an external server?

No. All calculations happen client-side in the visitor's browser. The plugin makes no REST API calls, no admin-ajax.php calls, and no third-party network requests of any kind.

Can I show more than one calculator on the same page?

Yes — each shortcode instance is fully independent and gets its own unique ID.

Is it accessible?

Tabs use proper ARIA roles (role="tablist", role="tab", role="tabpanel", aria-selected), and all animations respect prefers-reduced-motion.

Changelog

1.0.0

  • Initial release.