Amazon Shipping Calculator

This handles the messy math of Amazon fulfillment costs so you don't have to pull up spreadsheets every time you're evaluating a product. It calculates FBA fees, dimensional weight tiers, monthly storage costs, and compares FBA versus FBM options. The workflow is smart: it collects what it needs, asks one consolidated follow-up using multiple choice to speed things up, then gives you specific numbers and prioritized recommendations. Honestly useful if you're running the numbers on whether a product's margins actually work on Amazon, especially when you're dealing with dimensional weight quirks or trying to forecast storage fees across hundreds of units per month.

skills.sh installs: 1.2K
GitHub stars: 855
last updated: Aug 21, 2026

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Install

$ npx -y skills add nexscope-ai/amazon-skills --skill amazon-shipping-calculator --agent claude-code

Installs into .claude/skills of the current project.

Files

Amazon Shipping Calculator 📦

Comprehensive FBA and FBM cost calculator. Optimize fulfillment strategy and minimize shipping expenses.

Installation

npx skills add nexscope-ai/Amazon-Skills --skill amazon-shipping-calculator -g

Usage Examples

FBA cost analysis:

"Calculate FBA costs for my 12x8x4 inch product weighing 2.5 lbs - is FBA profitable vs self-fulfillment?"

Dimensional weight optimization:

"My product dimensions are 15x12x8 inches but only weighs 3 lbs - how can I optimize packaging to reduce FBA fees?"

Storage fee planning:

"I have 500 units in FBA storage for 8 months - what are my storage costs and when should I remove inventory?"

Core Capabilities

1. FBA Cost Calculation & Analysis

Complete FBA fee breakdown including fulfillment, storage, and additional service fees
Dimensional weight analysis and packaging optimization recommendations
Size tier determination and fee structure optimization strategies
Multi-marketplace fee comparison and cost optimization across regions

SKILL.md on GitHub