# Amazon Fba Calculator > Amazon FBA Calculator - Complete fee breakdown and profit analysis Source: https://skillsagentes.com/skills/nexscope-ai/amazon-skills/amazon-fba-calculator Repository: https://github.com/nexscope-ai/Amazon-Skills Author: nexscope-ai License: MIT Updated: hace 4 meses Context cost: 17 tok installed, 389 tok once triggered, 6.3k tok with every bundled file Bundle: 2 files, 25 KB Permissions requested: none declared ## Install ```bash npx -y skills add nexscope-ai/Amazon-Skills --skill amazon-fba-calculator --agent claude-code ``` ## What it does - Calcula el tier de tamaño Amazon FBA según dimensiones y peso del producto - Desglosa las tarifas: fulfillment, almacenamiento mensual, almacenamiento a largo plazo (271+ días) y referral fee por categoría - Genera análisis de rentabilidad: margen bruto/neto y ROI - Ofrece sugerencias de optimización de tamaño, peso e inventario ## Use it when - Necesitas calcular las tarifas FBA de un producto a partir de sus dimensiones, peso, precio de venta y costo - Quieres clasificar un producto en su size tier de Amazon (Small Standard, Large Oversize, etc.) - Quieres analizar el margen y ROI de un producto vendido por FBA ## What triggers it - "Calcula las tarifas FBA para un producto de 10x6x3 pulgadas y 1.2 lb" - "¿En qué size tier cae este producto y cuál sería mi margen?" - "Analiza la rentabilidad de vender este producto por FBA en la categoría kitchen" ## Before you install - Requiere Python 3 y el script scripts/calculator.py del repositorio. - Needs on PATH: python3 ## Files - SKILL.md — 2 KB - scripts/calculator.py — 23 KB ## SKILL.md Reproduced verbatim from nexscope-ai/Amazon-Skills under MIT. This section is the upstream document and is in English. # Amazon FBA Calculator (Lite) Precise FBA fee calculation based on product dimensions and weight. ## Features - **Size Tier Detection** - Automatic classification - **FBA Fulfillment Fee** - 2024 rates - **Monthly Storage Fee** - Standard & Peak season - **Long-term Storage Fee** - 271+ days aging - **Referral Fee** - By category - **Profit Analysis** - Gross/Net margin, ROI - **Optimization Tips** - Size, weight, inventory ## Size Tiers (2024) | Tier | Max Weight | Max Dimensions | |------|------------|----------------| | Small Standard | 1 lb | 15"×12"×0.75" | | Large Standard | 20 lb | 18"×14"×8" | | Small Oversize | 70 lb | 60"×30" | | Medium Oversize | 150 lb | L+Girth ≤108" | | Large Oversize | 150 lb | L+Girth ≤165" | | Special Oversize | >150 lb | >165" | ## Input ```json { "length": 10.0, "width": 6.0, "height": 3.0, "weight": 1.2, "selling_price": 29.99, "product_cost": 8.00, "inbound_shipping_cost": 1.50, "category": "kitchen" } ``` ## Output - Size tier classification - Fee breakdown table - Profit metrics (margin, ROI) - Optimization suggestions ## Usage ```bash python3 scripts/calculator.py python3 scripts/calculator.py '{"length": 10, "width": 6, ...}' --zh ``` --- _Version 1.0.0 | Platform: Amazon | Variant: Lite_ --- **Part of [Nexscope AI](https://www.nexscope.ai/?co-from=skill) — AI tools for e-commerce sellers.** --- Skills Agentes — https://skillsagentes.com/skills/nexscope-ai/amazon-skills/amazon-fba-calculator