amazon-shipping-calculator

# Amazon Shipping Calculator 📦

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

## Installation

```bash
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

### 2. FBM vs FBA Comparison & Strategy
- Comprehensive cost comparison between FBA and self-fulfillment options
- Break-even analysis and profitability assessment for each fulfillment method
- Hybrid fulfillment strategy development and product-specific recommendations
- Geographic and seasonal fulfillment optimization strategies

### 3. Storage Management & Optimization
- Storage fee calculation and long-term storage cost analysis
- Inventory aging tracking and removal cost planning
- Seasonal storage optimization and capacity planning strategies
- Inventory performance index (IPI) impact analysis and improvement recommendations

## How It Works

### Step 1: Cost Analysis & Fee Calculation
*Comprehensive fulfillment cost breakdown and fee analysis*

Calculate complete fulfillment costs and fee structures:
- Analyze product dimensions, weight, and packaging to determine accurate FBA size tiers and fees
- Calculate all FBA costs including fulfillment fees, monthly storage, long-term storage, and removal fees
- Compare FBA costs against self-fulfillment expenses including packaging, shipping, labor, and overhead costs
- Evaluate multi-marketplace fulfillment costs and identify optimization opportunities across regions

### Step 2: Optimization Strategy Development
*Packaging and fulfillment method optimization for cost reduction*

Develop cost optimization strategies:
- Identify packaging optimization opportunities to reduce size tiers and dimensional weight charges
- Analyze product portfolio for optimal fulfillment method selection (FBA vs FBM vs hybrid)
- Calculate break-even points and ROI for different fulfillment strategies and volume scenarios
- Develop seasonal and geographic fulfillment strategies to minimize costs and maximize efficiency

### Step 3: Implementation & Monitoring
*Strategic fulfillment execution and ongoing cost management*

Implement optimized fulfillment strategy:
- Execute packaging changes and fulfillment method transitions based on cost analysis and strategic objectives
- Monitor storage levels and implement inventory management strategies to minimize long-term storage fees
- Track fulfillment performance and costs to identify ongoing optimization opportunities
- Establish automated monitoring and alert systems for cost management and strategic adjustments

## Output Format

```
## Amazon Shipping & Fulfillment Cost Analysis
**Product:** [Product Name] | **ASIN:** [ASIN] | **Analysis Date:** [Date] | **Marketplace:** [US/UK/DE/etc]

### Product Specifications & Size Tier Analysis

**Physical Dimensions:**
- **Product Dimensions:** [L] x [W] x [H] inches
- **Product Weight:** [X.X] lbs (actual weight)
- **Packaging Dimensions:** [L] x [W] x [H] inches (with Amazon packaging)
- **Dimensional Weight:** [X.X] lbs (L×W×H ÷ 139)
- **Billable Weight:** [X.X] lbs (higher of actual or dimensional)

**FBA Size Tier Classification:**
- **Current Tier:** [Small Standard/Large Standard/Small Oversize/Medium Oversize/Large Oversize/Special Oversize]
- **Tier Factors:** [Based on dimensions, weight, and category]
- **Fee Structure:** [Fees applicable to this size tier]

**Dimensional Weight Optimization:**
- **Current DIM Weight:** [X.X] lbs
- **Optimization Potential:** [Y.Y] lbs savings possible
- **Recommended Actions:** [Specific packaging changes to reduce tier]
- **Potential Savings:** $[X.XX] per unit reduction in fulfillment fees

### Complete FBA Cost Breakdown

**Fulfillment Fees (Per Unit):**
| Fee Component | Current Cost | Optimized Cost | Savings Opportunity |
|---------------|--------------|----------------|-------------------|
| Pick & Pack | $[X.XX] | $[X.XX] | $[X.XX] |
| Weight Handling | $[X.XX] | $[X.XX] | $[X.XX] |
| **Total Fulfillment Fee** | **$[X.XX]** | **$[X.XX]** | **$[X.XX]** |

**Storage Fees (Monthly):**
- **Standard Size Storage:** $[X.XX] per cubic foot per month (Jan-Sep: $0.87, Oct-Dec: $2.40)
- **Oversize Storage:** $[X.XX] per cubic foot per month (Jan-Sep: $1.20, Oct-Dec: $2.40)
- **Your Product Volume:** [X.XX] cubic feet per unit
- **Monthly Storage Cost:** $[X.XX] per unit per month
- **Annual Storage Cost Range:** $[X.XX] - $[Y.YY] per unit (seasonal variation)

**Long-term Storage Fees:**
- **6+ Months:** $[X.XX] per cubic foot (assessed monthly)
- **12+ Months:** $[X.XX] per cubic foot (assessed monthly)  
- **Your Risk:** $[X.XX] per unit if stored 6+ months
- **Removal Threshold:** Consider removal after [X] months to avoid fees

**Additional FBA Fees:**
- **Removal Fee:** $[X.XX] per unit (if removing from FBA)
- **Disposal Fee:** $[X.XX] per unit (if disposing via Amazon)
- **Return Processing:** $[X.XX] per unit for customer returns
- **Prep Service:** $[X.XX] per unit (if using FBA prep services)
- **Labeling:** $[X.XX] per unit (if using FBA labeling)

### FBM (Self-Fulfillment) Cost Analysis

**Shipping Cost Breakdown:**
| Shipping Method | Zone 1-4 | Zone 5-6 | Z