Amazon Fba Calculator
by @mguozhen
Amazon FBA profit calculator. Input product price, COGS, dimensions, weight, and ad spend — get true net profit, margin, ROI, and break-even ACoS. Triggers:...
clawhub install mguozhen-amazon-fba-calculator📖 About This Skill
name: amazon-fba-calculator description: "Amazon FBA profit calculator. Input product price, COGS, dimensions, weight, and ad spend — get true net profit, margin, ROI, and break-even ACoS. Triggers: fba calculator, fba fees, amazon profit calculator, fba profit, amazon margin, fba fee calculator, amazon net profit, fba cost, product profitability, amazon roi, break-even acos, fba revenue calculator, amazon seller profit, cogs calculator, fba fulfillment fee" allowed-tools: Bash metadata: openclaw: homepage: https://github.com/mguozhen/amazon-fba-calculator
Amazon FBA Profit Calculator
Calculate true net profit for any Amazon product — accounting for all fees, costs, and ad spend. Know your real margin before you source.
Commands
fba calc # interactive profit calculation
fba calc [price] [cogs] [weight] # quick calculation with known values
fba fees # show current FBA fee schedule
fba break-even # calculate break-even ACoS
fba compare [price1] [price2] # compare two price points
fba save [product-name] # save product profile
fba history # show saved products
What Data to Provide
No API keys needed. Works from verbal descriptions or exact numbers.
Fee Structure (2024–2025)
Amazon Referral Fees by Category
| Category | Referral Fee | |----------|-------------| | Most categories | 15% | | Electronics | 8% | | Clothing & Accessories | 17% | | Jewelry | 20% (up to $250) | | Books, Music, Video | 15% | | Computers | 8% | | Furniture | 15% (+ $30 min) | | Automotive | 12% |FBA Fulfillment Fees (2025 US)
| Size Tier | Weight | Fee | |-----------|--------|-----| | Small Standard | ≤4 oz | $3.06 | | Small Standard | 4–8 oz | $3.15 | | Small Standard | 8–12 oz | $3.24 | | Large Standard | ≤4 oz | $3.68 | | Large Standard | 1 lb | $4.51 | | Large Standard | 2 lb | $5.22 | | Large Standard | +1 lb | +$0.38/lb | | Large Bulky | up to 50 lb | $9.73 + $0.42/lb over 1lb |Additional Fees to Include
Calculation Formula
Gross Revenue = Sale Price
Referral Fee = Sale Price × Referral %
FBA Fee = Based on size/weight tier
COGS = Product cost + inbound freight
PPC Cost = Sale Price × ACoS
Storage = (Units/month × cubic feet × rate) / units sold
Other Costs = Prep + photography amortized
─────────────────────────────────────
Net Profit = Revenue - All costs above
Net Margin % = Net Profit / Sale Price × 100
ROI = Net Profit / COGS × 100
Break-even ACoS = Net Margin % (before PPC)
Output Format
Every calculation outputs: 1. P&L Table — line-by-line cost breakdown 2. Key Metrics — Net Profit / Margin / ROI / Break-even ACoS 3. Sensitivity Analysis — profit at ±10%, ±20% price changes 4. Risk Flags — margin below 15%, storage risk, high referral fee categories 5. Optimization Tips — specific suggestions to improve margin
Rules
1. Always show full fee breakdown — never hide line items 2. Flag when margin is below 15% (risky for Amazon sellers) 3. Include seasonal storage surcharge warning for Q4 4. Show both pre-PPC and post-PPC margins 5. Ask for category if not provided — referral fee varies significantly 6. Note when estimated values are used vs. exact inputs
Benchmarks
| Metric | Healthy | Warning | Danger | |--------|---------|---------|--------| | Net Margin | >25% | 15–25% | <15% | | ROI | >50% | 30–50% | <30% | | Break-even ACoS | >25% | 15–25% | <15% | | Storage/Revenue | <3% | 3–8% | >8% |
🔒 Constraints
1. Always show full fee breakdown — never hide line items 2. Flag when margin is below 15% (risky for Amazon sellers) 3. Include seasonal storage surcharge warning for Q4 4. Show both pre-PPC and post-PPC margins 5. Ask for category if not provided — referral fee varies significantly 6. Note when estimated values are used vs. exact inputs