Title: Nempra Measure Lite
Author: nempra
Published: <strong>September 25, 2026</strong>
Last modified: September 25, 2026

---

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# Nempra Measure Lite

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

[Download](https://downloads.wordpress.org/plugin/nempra-measure.1.0.1.zip)

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

 [Support](https://wordpress.org/support/plugin/nempra-measure/)

## Description

Nempra Measure Lite adds a length x width calculator to any simple WooCommerce product.
As the customer chooses dimensions, the price updates instantly on the product page,
calculated as length x width x the product’s normal WooCommerce price per square
meter.

The plugin uses standard WooCommerce hooks only. It has no theme-specific integration,
so it works with any properly-coded WooCommerce theme.

#### What’s included in Lite

 * Length x width area calculation, live on the product page.
 * Works with simple (single-variant) products.
 * Server-side re-validation at checkout, so the price shown always matches the 
   price charged.
 * Existing settings and product data from a supported legacy measurement plugin
   are read automatically as a migration fallback — nothing is deleted.

#### Lite and Pro

Lite is a complete, unrestricted calculator for simple products — it is not a limited
trial of Pro. [Nempra Measure Pro](https://nempra.com/measure.html) is a separate
plugin for stores that also need:

 * Variable products (multiple options per product, each with its own measurement
   rules).
 * Per-variation measurement overrides.
 * Advanced min/max length and step rules per product.
 * Priority support and updates.

Pro is a drop-in upgrade: it shares its settings and product-metadata schema with
Lite, so switching plugins does not require reconfiguring your products.

## Screenshots

[⌊The calculator on a product page, ready for the customer to pick dimensions.⌉⌊
The calculator on a product page, ready for the customer to pick dimensions.⌉[

The calculator on a product page, ready for the customer to pick dimensions.

[⌊A live calculation: 5 m length, 1 m width -- area and total price update instantly.⌉⌊
A live calculation: 5 m length, 1 m width -- area and total price update instantly
.⌉[

A live calculation: 5 m length, 1 m width — area and total price update instantly.

[⌊The length field is a dropdown limited to the step size configured for the product.⌉⌊
The length field is a dropdown limited to the step size configured for the product
.⌉[

The length field is a dropdown limited to the step size configured for the product.

[⌊The total also scales with quantity: 5 items at 5 m each.⌉⌊The total also scales
with quantity: 5 items at 5 m each.⌉[

The total also scales with quantity: 5 items at 5 m each.

[⌊The Measurement tab on a simple product's edit screen.⌉⌊The Measurement tab on
a simple product's edit screen.⌉[

The Measurement tab on a simple product’s edit screen.

[⌊The Nempra Measure settings dashboard.⌉⌊The Nempra Measure settings dashboard.⌉[

The Nempra Measure settings dashboard.

## Installation

 1. Upload the plugin files to `/wp-content/plugins/nempra-measure-lite`, or install
    it through the WordPress plugins screen directly.
 2. Activate the plugin through the ‘Plugins’ screen in WordPress.
 3. Make sure WooCommerce is installed and active — Nempra Measure Lite requires it.
 4. Open a simple product’s edit screen and set your length range, step size and width(
    s) under the Measurement tab.
 5. Save the product. The calculator appears automatically on its product page.

## FAQ

### Does this work with variable products?

Not in Lite. Lite is built for simple (single-variant) products. Variable-product
support, with per-variation overrides, is a Nempra Measure Pro feature.

### I’m migrating from another measurement calculator plugin. Is that safe?

Yes. On activation, Nempra Measure Lite detects the old plugin’s settings and product
metadata and reads them as a starting point — your existing configuration is never
deleted. Never run both pricing plugins active at the same time: Lite detects the
old plugin and will not boot its own pricing engine while it remains active. We 
recommend testing on a staging copy first: deactivate the old plugin, activate this
one, confirm a sample product still shows its prior configuration, then re-save 
that product and test the full product page, cart, checkout and order flow before
going live.

### Will my settings carry over if I upgrade to Pro?

Yes. Pro reads the same settings and product-metadata schema as Lite, so upgrading
is a drop-in replacement — no reconfiguration needed.

### Does the price shown to the customer match what they’re actually charged?

Yes. The price calculation is re-validated on the server at checkout, using the 
product’s current configuration — the browser-side number is never trusted on its
own.

## Reviews

There are no reviews for this plugin.

## Contributors & Developers

“Nempra Measure Lite” is open source software. The following people have contributed
to this plugin.

Contributors

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

[Translate “Nempra Measure Lite” into your language.](https://translate.wordpress.org/projects/wp-plugins/nempra-measure)

### Interested in development?

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

## Changelog

#### 1.0.1

 * Fixed: the disabled “Pro preview” fields on the product Measurement tab
    printed
   their CSS and JavaScript inline instead of using wp_enqueue_style() / wp_enqueue_script().
   Both now load from properly enqueued, screen-scoped asset files.
 * Removed the packaged .po/.mo translation files; translations are handled
    through
   translate.wordpress.org.

#### 1.0.0

 * First stable release. Nempra Measure Lite has been live-tested end to end
    on
   a real WooCommerce store and passed a full security and performance audit with
   no issues found.

#### 0.4.0-beta.7

 * Added request-local caches for settings and product configuration.
 * Limited calculator assets to product pages by default while preserving the public
   override filter.
 * Reduced MutationObserver scope when the calculator is already present.
 * Hardened admin navigation output.

#### 0.4.0-beta.6

 * Added Settings, Getting started and Help tabs to the branded dashboard.
 * Added a three-step onboarding guide and first-activation welcome notice.
 * Added an explicit Lite versus Pro capability comparison.
 * Added packaged getting-started and troubleshooting documentation.

#### 0.4.0-beta.5

 * Added the official Nempra symbol to the branded settings dashboard.

#### 0.4.0-beta.4

 * Added the branded Nempra Measure settings dashboard.
 * Added edition, version, environment and HPOS status information.
 * Improved setting descriptions, layout, accessibility and responsive behavior.
 * Refreshed the English source catalog and Dutch translation.

#### 0.4.0-beta.3

 * Renamed the public product identity to Nempra Measure by Nempra Software.
 * Adopted the final plugin slug and translation domain `nempra-measure`.
 * Preserved the existing `yzpm_*` settings and metadata schema for upgrades.

#### 0.4.0-beta.1

 * Established the standalone Lite edition for simple WooCommerce products.
 * Kept the tested calculation, migration, cart, checkout, order, translation, and
   theme-independent behavior.
 * Separated variable-product implementation into the Pro distribution.

#### 0.2.0-alpha.1

 * Split the monolithic prototype into bootstrap, settings, product, frontend, cart/
   order, admin, and legacy compatibility services.
 * Replaced legacy-branded settings and new metadata with the neutral `yzpm_*` schema.
 * Added read compatibility for existing `sgmc_settings` and `_sgmc_*` product metadata.
 * Added runtime compatibility for existing `sgmc` cart sessions so open carts keep
   their validated measurements during migration.
 * Added a safe conflict notice when the old pricing plugin remains active.
 * Removed all WoodMart-specific selectors and markup manipulation.
 * Replaced catalog-button HTML regex editing with WooCommerce filters.
 * Fixed the settings capability mismatch for shop managers.
 * Added dependency, license, domain path, and version metadata.
 * Changed source strings to English and added Dutch localization scaffolding.
 * Limited frontend assets to WooCommerce surfaces, with a public filter for custom
   product layouts.

## Meta

 *  Version **1.0.1**
 *  Last updated **2 days ago**
 *  Active installations **Fewer than 10**
 *  WordPress version ** 6.5 or higher **
 *  Tested up to **7.1.2**
 *  PHP version ** 7.4 or higher **
 * Tags
 * [calculator](https://wordpress.org/plugins/tags/calculator/)[measurement](https://wordpress.org/plugins/tags/measurement/)
   [square meter](https://wordpress.org/plugins/tags/square-meter/)[woocommerce](https://wordpress.org/plugins/tags/woocommerce/)
 *  [Advanced View](https://wordpress.org/plugins/nempra-measure/advanced/)

## Ratings

No reviews have been submitted yet.

[Your review](https://wordpress.org/support/plugin/nempra-measure/reviews/#new-post)

[See all reviews](https://wordpress.org/support/plugin/nempra-measure/reviews/)

## Contributors

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

## Support

Got something to say? Need help?

 [View support forum](https://wordpress.org/support/plugin/nempra-measure/)