Amazon FBA Fee Calculator — Know Your REAL Profit

Stop guessing. Know exactly what you'll make before you sell a single unit.

Description

Full FBA profitability calculator with 2026 fee schedule. Calculates referral fees, FBA fulfillment fees, storage costs, and net margin. Supports all size tiers and 20+ categories.

When to Use

• User wants to calculate Amazon FBA profitability
• User asks about Amazon fees, margins, or ROI
• User is evaluating whether to sell a product on Amazon
• User compares FBA vs FBM costs
• User mentions COGS, margin, or break-even price

Usage

# Basic: selling price + product cost
cd <skill_dir>/scripts && python3 calculator.py 24.99 5.00

# Full options
cd <skill_dir>/scripts && python3 calculator.py 9.95 2.00 --ship 0.50 --weight 8 --category grocery --units 200 --ppc 1.50

Options

• --ship COST — Shipping cost to FBA per unit
• --weight OZ — Product weight in ounces
• --dims L W H — Dimensions in inches
• --category CAT — Product category (grocery, beauty, electronics, etc.)
• --units N — Monthly units sold (for projections)
• --ppc COST — PPC/advertising cost per unit

What It Calculates

• Referral fee (category-specific, with thresholds)
• FBA fulfillment fee (weight-based, by size tier)
• Monthly storage fee (per unit, seasonal rates)
• Total cost per unit
• Profit per unit, margin %, ROI %
• Monthly and annual profit projections
• Break-even selling price

No Dependencies

Pure Python 3. No pip install. No API keys. Works everywhere.