A comprehensive tool that calculates shipping expenses by converting between different weight units and shipping rate structures.

KEY FEATURES:

1. Multi-Unit Support:
- Weight Units: Pounds (lb), Kilograms (kg), Grams (g), Ounces (oz)
- Rate Units: Can be different from weight units (e.g., $/kg for lb weight)

2. Calculation Capabilities:
- Total Shipping Cost: Calculate final cost from weight and rate
- Required Weight: Determine weight needed for a specific budget
- Rate Calculation: Find shipping rate from total cost and weight
- Unit Conversion: Automatic conversion between all supported units

3. Use Cases:
- E-commerce order fulfillment
- Logistics planning
- Cost estimation for packages
- Comparing carrier rates
- Budget planning for shipping

FORMULA:
Total Cost = (Weight in Rate Units) × Rate
Where: Weight in Rate Units = (Actual Weight) × Conversion Factor

This calculator handles all unit conversions automatically, allowing
flexible combinations like calculating cost for pounds when the rate
is per kilogram, or grams when the rate is per ounce.

credits : icons made by

Book icons created by Freepik - Flaticon
Calculator icons created by Vitaly Gorbachev - Flaticon
Number blocks icons created by surang - Flaticon
Shipping cost icons created by Ndut_Design - Flaticon