EU Base Price (Grundpreis)

EU Base Price (Grundpreis) for Magento 2

If you sell physical goods in Germany or the EU, displaying a per-unit reference price is not optional — it is legally required. This module adds Grundpreis support across every storefront surface without patching core Magento code.

How the Formula Works

The reference price is calculated as:

base_price = (selling_price ÷ product_amount) × (reference_amount × conversion_rate)

Example: A 300 g shampoo priced at €4.99 → Base price: €16.63 / 1 kg

Where It Displays

• Product detail pages
• Category and search result listings
• Shopping cart line items
• Configurable, bundle, and grouped product variants

Unit Management

• 9 pre-installed SI units — gram, milligram, kilogram, millilitre, centilitre, litre, centimetre, metre, piece
• Create custom units in Admin → Catalog → Base Price Units
• Each unit defines: name, symbol, and conversion rate to a reference unit

Configurable Display Templates

Customise the label format using placeholders:

• {{unit_price}} — the calculated reference price
• {{reference_amount}} — the reference quantity (typically 1 or 100)
• {{reference_unit}} — the reference unit symbol (e.g. kg)
• {{product_amount}} — the actual product quantity
• {{measure_unit}} — the product's unit symbol (e.g. g)
• {{product_price}} — the selling price for context

Example template: ({{unit_price}} / {{reference_amount}} {{reference_unit}}) → displays as (€16.63 / 1 kg)

Per-Product Configuration

• Enable or disable base price display per product
• Override reference amount per product (e.g. show per 100 ml instead of 1 litre)
• EAV attributes loaded in product listings — no extra queries on category pages

REST API

• Unit CRUD — create, read, update, delete custom units
• Product base price CRUD — set/read base price configuration per SKU
• Anonymous calculator endpoint — compute base prices without authentication

Installation

composer require magendoo/module-base-price
bin/magento setup:upgrade && bin/magento setup:di:compile
bin/magento cache:flush

Requirements

• Magento 2.4.x
• PHP 8.1 or higher
• 45 formula unit tests + 22 product display integration tests

License: MIT  |  View on GitHub