Enhance your product pages with inline unit conversion and interactive unit-aware sizing calculators powered by CalcsLive. Makes it easier for customers to choose the right size and quantity before checkout. Help Reduce support inquiries and product returns.

Free: a) Unit converter shortcodes that let visitors toggle between metric and imperial units in your product specifications—no account required; b) Calculator embedding: 2 pages on 1 domain for Free tier.

Pro: Embed powerful sizing and quantity calculators from CalcsLive that guide customers to the right product configuration.

Perfect For

E-commerce stores – AC sizing, concrete quantity, flooring coverage, paint calculators
Technical products – Specifications with live unit conversion (mm inches, kg lbs)
Building materials – “How many bags do I need?” calculators
Industrial equipment – Belt sizing, cylinder selection, capacity calculators

Key Features

570+ Units, 67 Categories – Full CalcsLive unit library: length, mass, temperature, pressure, force, flow rate, and more
Unit Converter Shortcodes – Free, no API key needed: [calcslive_qty value=25 unit="mm"]
Calculator Embed – Embed full calculators: [calcslive id="YOUR_ID"]
Gutenberg Block – Visual editor with live preview
Responsive – Works on desktop, tablet, and mobile
Lightweight – Scripts load only on pages that use them
Reduce Returns Preventively – Helps customers choose right before purchase, and businesses reduce returns and all associated hassles, contrary to conventional reactive solutions

Works With

Shortcodes and the Gutenberg block work inside any WordPress editor or plugin that renders standard shortcodes:

WooCommerce product tabs – Add unit-aware specs or calculators to any tab using plugins like Custom Product Tabs for WooCommerce or YITH WooCommerce Tab Manager
Elementor – Drop a Shortcode widget onto any product or landing page
Divi – Use a Code or Text module with the shortcode
WPBakery / Classic Editor – Paste shortcodes directly into any text area
Any shortcode-aware plugin – If it renders [shortcodes], CalcsLive shortcodes work inside it

Buying Calculations: Reduce Returns, Increase Confidence

Technical products often require customers to determine the right size and the right quantity before purchase. Without guidance, they guess—leading to returns, exchanges, and frustration.

Buying Calculations solve this by embedding pre-purchase calculators directly on product pages:

Sizing calculators – Help customers choose correct dimensions, capacity, or fit
Quantity calculators – Calculate how many bags, sheets, or units are needed

Create Calculators Without Coding

Traditional product calculators require custom development. CalcsLive changes this:

Create calculation logic using familiar technical data
Turn it into an interactive, unit-aware calculator
Embed on WordPress with a simple shortcode

From days of development to under one hour—no coding required.

Product teams, engineers, or office staff can create and deploy calculators themselves, shifting calculator creation from a development task to a content task.

How It Works

For unit converters (free, no account):
1. Add to any page:
– Single quantity:
– [calcslive_qty value=25.4 unit="mm"], value input without quote
– [calcslive_qty value='25.4' unit="mm"], value input with ‘ ‘
– [calcslive_qty value="25.4" unit="mm"], value input with ” “
– Quantity pair:
– [calcslive_qty_pair values="10x20" unit="cm"] for 2D dimensions, or
– [calcslive_qty_pair values="(10, 20)" unit="cm"] for coordinates/range
– Quantity triplet:
– [calcslive_qty_triplet values="10x20x30" unit="cm"] for 3D dimensions, or
– [calcslive_qty_triplet values="(10, 20, 30)" unit="cm"] for 3D coordinates
2. Visitors click to convert between compatible units

For embedded calculators:
1. Create your calculator on CalcsLive
2. Get your embed API key and article ID
3. Add [calcslive id="YOUR_ID"] to your product page
4. Customers use the calculator interactively

Free Tier

Start free with CalcsLive:
* 2 embedded calculators
* 1 domain
* Full calculator functionality
* Unit converter shortcodes (unlimited, no account needed)

Get started free

Third-Party Service

This plugin relies on the CalcsLive external service to display interactive calculations. When an embed is rendered, your visitor’s browser loads content directly from CalcsLive via an iframe.

What is sent:

Your embed API key and domain (included in the iframe URL)
The article ID you specify in the shortcode or block

No visitor data (such as IP addresses, cookies, or personal information) is collected or sent to CalcsLive by this plugin. The iframe loads in the visitor’s browser like any standard embedded content.

CalcsLive website: calcslive.com
Terms of Service: calcslive.com/terms
Privacy Policy: calcslive.com/privacy

Quick Start

Unit-Aware Specs and Product Buying Calculators are two independent features. Use either one, or both.

A: Unit-Aware Specs (Free, No Account)

Use unit converter shortcodes anywhere shortcode insertion is supported — product descriptions, pages, posts, WooCommerce tabs, page builders:

[calcslive_qty value="25.4" unit="mm"] — single quantity
[calcslive_qty_pair values="10x20" unit="cm"] — 2D dimensions or coordinates
[calcslive_qty_triplet values="10x20x30" unit="cm"] — 3D dimensions or coordinates

Visitors click the unit dropdown to convert between compatible units. No API key. No external service. Fully client-side.

B: Embed Buying Calculators (Requires CalcsLive Account)

Create your calculator at calcslive.com — no coding required
Get your embed API key (Settings CalcsLive in WordPress) and your article ID
Embed anywhere with: [calcslive id="YOUR_ARTICLE_ID"] or use the CalcsLive Gutenberg block

Customers interact with the calculator live on your product page — inputs update in real-time.

Unit Converter Shortcodes

No API key needed. These shortcodes render interactive values that visitors can click to convert between units:

Single value:
[calcslive_qty value=25.4 unit=”mm”] (value input without quote)
[calcslive_qty value=’25.4′ unit=”mm”] (value input with ‘ ‘)
[calcslive_qty value=”25.4″ unit=”mm”] (value input with ” “)

Value pair — 2D dimensions:
[calcslive_qty_pair values=”10×20″ unit=”cm”]

Value pair — 2D coordinates or range:
[calcslive_qty_pair values=”(10, 20)” unit=”cm”]

Value triplet — 3D dimensions (L x W x H):
[calcslive_qty_triplet values=”10x20x30″ unit=”cm”]

Value triplet — 3D coordinates:
[calcslive_qty_triplet values=”(10, 20, 30)” unit=”cm”]

Optional attributes:

dp – Decimal places (default: 2)
show_unit_arrow – Show/hide unit dropdown arrow (default: true)

Getting Your API Key

Sign up or log in at CalcsLive
Go to Account API & Integration Settings
Create a new API key with service type “Website Embedding”
Add your WordPress domain to the allowed domains
Copy the API key to your WordPress settings

Unit Converter & Sizing Calculator for Product Pages