CBM Calculator
Embed a fully customizable CBM Calculator on your site. Choose a template, match your brand colors, and toggle the fields you need.
Use with caution
CBM Calculator works, but test it on a staging site before relying on it in 2026. It runs on 10+ sites and was last updated 4 months ago, and scores 51/100 on our health check.
- Small user base (10+ active installs)
- Very few reviews so far
Daily downloads
Download spikes usually follow a new release — each site that auto-updates counts as a download.
Rankings
Where CBM Calculator stands todayWordPress.org search rankings
Live position in the plugin search, top 100| Keyword | Position |
|---|---|
| cbm calculator | #1 |
| cubic feet | #3 |
| cubic meter | #3 |
| shipping calculator | #51 |
| volume & weight calculator | #12 |
Version adoption
Share of active sites per release.
About CBM Calculator
From the official readme · v1.2.0Description
CBM Calculator is a powerful shipping calculator plugin that helps you calculate cubic meters (CBM), cubic feet (CFT), volumetric weight, and container fitting — directly on your WordPress site.
Powered by the CBM Calculator API, the plugin delivers accurate real-time calculations as you type.
Three Calculator Templates
Single Product
Calculate CBM, CFT, volumetric weight (sea & air), and container fitting for one product at a time. Perfect for simple shipping queries.
Multiple Products
Add multiple products in a table layout, each with its own dimension unit and weight unit. Get per-row results and grand totals for CBM, CFT, and quantity.
Container Fitting
Visual card layout showing exactly how many units fit in a 20 FT, 40 FT, and 40 FT HC container.
Key Features
- Real-time calculations as you type — debounced for accuracy
- 3 calculator templates to suit different use cases
- Per-row unit of measurement in Multiple Products template
- Full color customization — Primary, Header, Button, Background, Text, Border
- Border radius control for sharp or rounded styling
- Show/hide optional fields — Volumetric Weight Sea, Volumetric Weight Air, Container Fit
- Reset to Defaults button in settings — preserves your API key
- Fully responsive — works on mobile, tablet, and desktop
- Simple shortcode: [cbmcal_calculator_plugin]
Supported Units of Measurement
Dimensions: cm, mm, meter, inch, feet, yard
Weight: kg, lb
API Key
This plugin requires a free API key from cbmcalculator.com. You receive 100 free API calls for development. Paid plans are available for production use.
Usage
Add the shortcode to any page or post:
[cbmcal_calculator_plugin]
Then go to Settings → CBM Calculator to configure your API key, choose a template, customize colors, and toggle fields.
Installation
- Install plugin from WordPress
- Visit https://www.cbmcalculator.com/profile.html?utm_source=wordpress&utm_medium=plugin-readme&utm_campaign=cbm-calculator
- Create a free account
- Copy your API key from the profile page after login (100 free API calls for development)
- Go to Settings > CBM Calculator and paste your API key
- Choose a template, customize colors, toggle fields
- Add shortcode [cbmcal_calculator_plugin] to any page or post
Frequently asked questions
Where do I get an API key?
Visit cbmcalculator.com/profile.html, create a free account, and copy your API key from the profile page.
How many free API calls do I get?
You get 100 free API calls for development. For production use, paid plans are available on cbmcalculator.com.
Which shortcode do I use?
Add [cbmcal_calculator_plugin] to any page, post, or widget.
Can I customize the colors?
Yes — go to Settings → CBM Calculator and you will find color pickers for Primary, Header, Button, Background, Text, and Border colors, plus a border radius slider.
Can I hide certain fields?
Yes — in Settings → CBM Calculator you can toggle Volumetric Weight Sea, Volumetric Weight Air, and Container Fit on or off.
Does it work on mobile?
Yes — the calculator is fully responsive and adapts to any screen size.
Which units of measurement are supported?
Dimensions: cm, mm, meter, inch, feet, yard. Weight: kg, lb.
Changelog
1.2.0
- Tested up to WordPress 7.0
- New: 3 calculator templates — Single Product, Multiple Products, Container Fitting
- New: Per-row dimension and weight unit selectors in Multiple Products template
- New: Color customization — Primary, Header, Button, Background, Text, Border
- New: Border radius control
- New: Show/hide fields — Volumetric Weight Sea/Air, Container Fit
- New: Reset to Defaults button in settings (preserves API key)
- Improved: Debounced calculations — no more stale results on fast typing
- Improved: Responsive design, full width layout
- Fixed: Settings save issue with color fields
1.1.0
- Tested up to WordPress 6.8
- Replaced deprecated wp_print_scripts hook with wp_enqueue_scripts
- Moved inline event handlers to JavaScript
- Improved mobile responsiveness
- Fixed typo in error message
- Replaced deprecated new Object() with object literal syntax
1.0.0
- Initial release
Screenshots
For developers
Is this your plugin? Show off the numbers.
Add a live badge to your site, docs or GitHub README. It updates on its own — no account needed.
FAQ
CBM Calculator: quick answers
Straight answers, pulled from live WordPress.org data.
Live data from WordPress.org · checked Oct 6, 2026
Is CBM Calculator free?
Yes. CBM Calculator is free to download and use from the official WordPress.org plugin directory.
Is CBM Calculator safe to use in 2026?
CBM Calculator works, but test it on a staging site before relying on it in 2026. It runs on 10+ sites and was last updated 4 months ago, and scores 51/100 on our health check.
How many websites use CBM Calculator?
CBM Calculator is active on 10+ WordPress websites and has been downloaded 819 times since it launched in March 2025. It was downloaded 58 times in the last 30 days.
Does CBM Calculator work with WordPress 7.1?
CBM Calculator is officially tested up to WordPress 7.0.6, while the latest release is 7.1.2. It may still work, but try it on a staging site first.
What PHP version does CBM Calculator need?
CBM Calculator requires PHP 7.4 or higher. Most hosts run PHP 8.x today, so it works on any modern WordPress hosting.
When was CBM Calculator last updated?
The latest version, 1.2.0, was released on June 11, 2026 (4 months ago).
Who makes CBM Calculator?
CBM Calculator is developed and maintained by Tariq.
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