Accurately predicting shipping costs is crucial for a smooth international shopping experience. This guide will teach you how to use LoongBuy's built-in tools and principles to estimate your package's shipping weight and cost before
LoongBuy's system provides estimates based on seller information and product categories. Follow these steps: Tip:
Sellers list a "declared weight," often for the product alone. Remember to account for: For international shipping, carriers charge based on volumetric weight
The formula is: If the physical weight is 3 kg but the volumetric weight is 4.8 kg, you will be charged for 4.8 kg. You can influence the final weight and volume. Request these services from LoongBuy's warehouse: By mastering these steps, you can shop on LoongBuy with confidence, having a clear and accurate understanding of your total costs—product price plus shipping—before you commit to pay.Using the LoongBuy Weight Calculator
Key Concepts for Accurate Estimation
1. Item Types and Declared Weight
2. The Critical Rule of Volumetric Weight
(Length x Width x Height) / Volumetric Divisor
Efficient Packing Methods to Reduce Costs
Quick Summary & Action Plan
Step
Action
Goal
1
Use the shopping cart estimator
Get a baseline cost.
2
Consider item type and add 10-15% for packaging
Refine the physical weight estimate.
3
Calculate volumetric weight using estimated dimensions
Identify potential cost drivers.
4
Plan to use efficient packing services
Minimize final chargeable weight.
5
Check final invoice before paying for shipping
Confirm the actual measured weight.
LoongBuy: How to Estimate Your Shipping Weight Before Paying
2026-02-27