Laravel Unit Converter

Unit Management for Laravel. Flexible. Precise.

Laravel Unit Converter helps you manage and convert measurement units in a clean, consistent way—from Weight and Length to Currency, Volume, Temperature, and 30+ other unit types. It is designed to be used as a reusable package in real-world Laravel applications where unit conversion needs to be normalized and shared across multiple models.

Why Laravel Unit Converter?

Comprehensive Unit Type Support

Support for 30+ unit types out of the box:

• Physical Units: Weight, Length, Volume, Area, Temperature, Pressure, Speed, Force, Energy, Power, and more
• Digital Units: Data Storage, Data Transfer
• Scientific Units: Electric Current, Voltage, Resistance, Capacitance, Inductance, Magnetic Flux, Radiation
• Everyday Units: Currency, Time, Cooking measurements, Fuel Consumption

Flexible Base Unit System

Each unit type has a base unit (value = 1) that serves as the conversion reference. All other units in the same type are defined relative to this base, making conversions accurate and consistent.

Service-first API + Facade

The UnitConverter service provides a complete API for:

• Creating and managing units
• Converting values between units
• Changing base units dynamically
• Tracking unit usage across your application

Quick Start

Install via Composer:

composer require jobmetric/laravel-unit-converter

Run migrations:

php artisan migrate

Optionally publish config/translations (if you need to override defaults):

php artisan vendor:publish --provider="JobMetric\\UnitConverter\\UnitConverterServiceProvider"

Usage (Examples)

Store a unit using the Facade:

use JobMetric\UnitConverter\Facades\UnitConverter;

$response = UnitConverter::store([
    'type' => 'weight',
    'value' => 1000,       // 1 kilogram = 1000 grams (if gram is base)
    'status' => true,
    'translation' => [
        'en' => [
            'name' => 'Kilogram',
            'code' => 'kg',
        ],
        'fa' => [
            'name' => 'کیلوگرم',
            'code' => 'کیلوگرم',
        ],
    ],
]);

Convert between units:

use JobMetric\UnitConverter\Facades\UnitConverter;

// Convert 5 kilograms to grams
$result = UnitConverter::convert($kilogramUnitId, $gramUnitId, 5);
// Result: 5000

// Or use the helper function
$result = unitConvert($kilogramUnitId, $gramUnitId, 5);

Attach units to your models using traits:

use Illuminate\Database\Eloquent\Model;
use JobMetric\UnitConverter\HasUnit;

class Product extends Model
{
    use HasUnit;

    protected array $unitables = [
        'weight' => 'weight',
        'length' => 'length',
        'width'  => 'length',
        'height' => 'length',
    ];
}

Assign units to a model:

$product->fill([
    'unit' => [
        'weight' => ['unit_id' => 1, 'value' => 2.5],
        'length' => ['unit_id' => 2, 'value' => 30],
        'width'  => ['unit_id' => 2, 'value' => 20],
        'height' => ['unit_id' => 2, 'value' => 10],
    ]
]);
$product->save();

Available Artisan Commands

# List all registered units
php artisan unit:list

# Convert a value between units
php artisan unit:convert

# Export units to file
php artisan unit:export

# Seed default units
php artisan unit:seed

Documentation

Documentation for Laravel Unit Converter is available here:

📚 Read Full Documentation →

The documentation includes:

• Getting Started - Installation and configuration
• Traits - HasUnit for attaching units to models
• Services & Facades - Complete API reference for UnitConverter
• Unit Types - All 30+ supported unit types
• Requests & Resources - Validation and API responses
• Events - Hook into lifecycle events (UnitStoreEvent, UnitUpdateEvent, UnitDeleteEvent)
• Helper Functions - unitConvert() and more
• Testing - How to run package tests and expected patterns

Contributing

Thank you for participating in laravel-unit-converter. A contribution guide can be found here.

License

The laravel-unit-converter is open-sourced software licensed under the MIT license. See License File for more information.