Mercari Profit Calculator
Mercari fees look low until you add product cost and shipping subsidies. Enter your selling price, what buyer pays for shipping, your cost to source the item, actual shipping cost you pay, packaging, and any other per-order overhead. Auto-calculated Mercari fees give you net profit, margin, and ROI so you see which listings actually make money.
Instant calculations · Editable fee assumptions · Export-ready results
Inputs
Values update results instantly. Adjust fee assumptions to match your seller dashboard.
Sale details
Item price buyer pays.
Shipping amount buyer pays, 0 if free shipping baked into price.
Your costs
Your sourcing cost, thrift, wholesale, handmade.
Carrier cost when you offer free shipping or label beyond buyer payment.
Box, polymailer, tissue.
Boost, storage, software per-order share.
Results
Live estimates based on your inputs and editable fee assumptions.
Total revenue
$35.00
Selling price plus shipping charged.
Total Mercari fees
$5.02
10% selling + $0.50 + 2.9% payment.
Total costs excluding Mercari fees
$11.00
Item + shipping you pay + packaging + other.
Total out (fees + costs)
$16.02
All outflows.
Net profit
$18.99
Revenue minus fees and all costs.
Profit margin
Excellent54.2%
Profit percent of total revenue.
ROI on item cost
189.8%
Profit divided by item cost.
What this means
Healthy $18.98 profit 54.2% margin. Fees $5.02 ($3.50+ $1.52), costs $11.00 including $10.00 item. ROI 190%.
Mercari profit breakdown
Interactive breakdown of fees, costs, and remaining profit.
Distribution
- Mercari fees$5.0214.3%
- Item cost$10.0028.6%
- Ship + pack + other$1.002.9%
- Net profit$18.9954.2%
Total $35.00 · 4 segments · interactive
Line-item breakdown
Dollar amounts, share of revenue, and visual proportion.
- Selling price
- $35.00
- Shipping charged
- $0.00
- Total revenue
- $35.00
- Selling fee 10%
- $3.50
- Payment fee
- $1.52
- Total Mercari fees
- $5.02
- Item cost
- $10.00
- Actual shipping cost
- $0.00
- Packaging
- $1.00
- Other costs
- $0.00
- Total costs ex fee
- $11.00
- Total out
- $16.02
- Net profit
- $18.99
- Profit margin
- 54.2%
- ROI
- 189.8%
Assumptions used
- • Selling fee 10% × $35.00 = $3.50
- • Payment $35.00×2.9%+$0.50 = $1.52
- • Costs ex fee $11.00
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Continue with related tools
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Mercari Profit Calculator
Generated 7/30/2026, 5:24:44 AM · Currency USD
Inputs
- Selling price: 35
- Shipping charged to buyer: 0
- Item cost (COGS): 10
- Actual shipping cost you pay: 0
- Packaging cost: 1
- Other costs per order: 0
Results
- Selling price: $35.00
- Shipping charged: $0.00
- Total revenue: $35.00
- Selling fee 10%: $3.50
- Payment fee: $1.52
- Total Mercari fees: $5.02
- Item cost: $10.00
- Actual shipping cost: $0.00
- Packaging: $1.00
- Other costs: $0.00
- Total costs ex fee: $11.00
- Total out: $16.02
- Net profit: $18.99
- Profit margin: 54.2%
- ROI: 189.8%
Interpretation
Healthy $18.98 profit 54.2% margin. Fees $5.02 ($3.50+ $1.52), costs $11.00 including $10.00 item. ROI 190%.
How it works
Methodology & formulas
This calculator is transparent by design. Review the steps and formulas so you can trust the estimate and adjust assumptions when your dashboard differs.
Calculation steps
- 1Calculate 10% selling fee
- 2Calculate total buyer payment for payment fee base
- 3Calculate 2.9% + $0.50 payment processing
- 4Sum as total fees
- 5Sum costs excluding fees
- 6Total out = fees + costs ex fee
- 7Net profit = revenue − total out
- 8Margin = profit ÷ revenue ×100
Formulas
- SellingFee = price ×10%
- PaymentFee = (price+shipCharged)×2.9%+$0.50
- Revenue = price+shipCharged
- Costs = item+actualShip+pack+other
- Profit = revenue−fees−costs
- Margin = profit÷revenue×100
Important assumptions
- Selling fee = 10% × selling price
- Payment fee = (sellingPrice + shippingCharged) × 2.9% + $0.50
- Revenue = sellingPrice + shippingCharged
- Costs ex fee = itemCost + actualShippingCost + packagingCost + otherCosts
- Profit = revenue − totalMercariFees − costs ex fee
Worked example
$35 sale, $10 item cost
Selling price $35, shipping charged $0, item cost $10, actual shipping $0, packaging $1, other $0.
FAQ
Common questions
Related tools
Continue planning
Mercari Fee Calculator
Calculate Mercari fees — 10% selling fee plus $0.50 payment processing plus merchant fee — to see net earnings per sale.
Mercari Pricing Calculator
Work backward from desired Mercari profit to list price that covers 10% selling fee plus $0.50+2.9% processing, product cost, shipping, and packaging.
Poshmark Profit Calculator
See true Poshmark profit after the $2.95 under-$15 or 20% fee, product cost, shipping you subsidize, packaging, and other costs.
eBay Profit Calculator
Calculate true net profit per eBay order after final value fees, insertion fees, Promoted Listings, product costs, and shipping.
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