Marketplace Revenue Calculator
Project your marketplace earnings, find your break-even point, and set revenue goals. Enter your commission rate, AOV, and monthly orders to see detailed projections you can export and share.
Quick answer
A free tool - no signup - that projects your marketplace earnings from three inputs: commission rate, average order value, and monthly orders. It accounts for your Prometora plan fee and Stripe processing fees, includes goal and break-even calculators, and lets you share a link or export to CSV or Google Sheets. Your settings auto-save in the browser.
How much does a marketplace make?
Most online marketplaces charge sellers a commission of 5-30% per transaction. A marketplace doing $10,000 in monthly GMV at a 10% commission rate collects $1,000 in commission, or roughly $700 in net revenue after Prometora's 1.5% platform fee and the $149/mo Professional plan (sellers cover Stripe's 2.9% + $0.30 per transaction). Use the calculator below to project your own numbers, or read the commission rates guide for benchmark data by category.
Net monthly revenue
$250
After Prometora's fee and subscription
Annual projection
$3,000
Net revenue at this volume × 12
Above break-even
42 orders
58 above, subscription covered
Your numbers
Start from
%
$
/mo
Prometora plan
Where each sale goes
The buyer pays $50.00
Seller$43.2586.5%
You keep$4.258.5%
Prometora$0.751.5%
Stripe$1.753.5%
Sale price
$50.00Your commission (10%)
+$5.00Prometora fee (1.5%)
Billed to you once a month with your subscription
Stripe fee (2.9% + $0.30)
Deducted from the seller, not from you · US card rate
You keep
Per sale, before your monthly subscription
The seller receives
$43.25Projections
Per monthPer yearSales (GMV)$5,000$60,000
Your commission+$500+$6,000
Prometora fees-$75-$900
Subscription-$175-$2,100
Net revenue$250$3,000Profit margin5.0% of GMV
Like the look of $250/month?
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As you grow
Net revenue per month at different order volumes, based on $50 AOV, 10% commission and the Professional plan
50
$38
100
You
$250
250
$888
500
$1,950
1,000
$4,075
Monthly orders → net revenue per month
| Orders | GMV | Commission | Fees | Net |
|---|---|---|---|---|
| 50 | $2,500 | $250 | -$213 | $38 |
| 100You | $5,000 | $500 | -$250 | $250 |
| 250 | $12,500 | $1,250 | -$363 | $888 |
| 500 | $25,000 | $2,500 | -$550 | $1,950 |
| 1,000 | $50,000 | $5,000 | -$925 | $4,075 |
Save or share these numbers
Ready to Start Earning?
With 100 orders at $50 AOV, you could be earning $250/month. Start building your marketplace today.
Frequently Asked Questions
The calculator provides estimates based on the inputs you provide.
Actual revenue may vary depending on factors like refund rates, chargebacks, and seasonal fluctuations. Use it as a planning tool to understand potential earnings.
Actual revenue may vary depending on factors like refund rates, chargebacks, and seasonal fluctuations. Use it as a planning tool to understand potential earnings.
The calculator includes:
• Your commission rate — the percentage you set
• Prometora platform fee — varies by plan: 1.5% (Professional), 1% (Business)
• Stripe processing fee — Stripe's standard card rate for your selected currency's region (e.g. 2.9% + $0.30 for USD, 1.5% + €0.25 for EUR, 1.5% + 1.80 kr for DKK). Actual rates vary by card type and country, so treat the Stripe line as an estimate
By default Stripe's fee comes out of the seller's payout, so it doesn't reduce your commission. If you plan to pay it yourself, or to charge buyers a service fee on top of the price, open More fee options under the settings and the numbers follow. The Where each sale goes section shows it for the full picture, but with the default setup your net revenue is your commission minus Prometora's fee and subscription.
See Stripe's marketplace payments docs for how their fees work in your region.
• Your commission rate — the percentage you set
• Prometora platform fee — varies by plan: 1.5% (Professional), 1% (Business)
• Stripe processing fee — Stripe's standard card rate for your selected currency's region (e.g. 2.9% + $0.30 for USD, 1.5% + €0.25 for EUR, 1.5% + 1.80 kr for DKK). Actual rates vary by card type and country, so treat the Stripe line as an estimate
By default Stripe's fee comes out of the seller's payout, so it doesn't reduce your commission. If you plan to pay it yourself, or to charge buyers a service fee on top of the price, open More fee options under the settings and the numbers follow. The Where each sale goes section shows it for the full picture, but with the default setup your net revenue is your commission minus Prometora's fee and subscription.
See Stripe's marketplace payments docs for how their fees work in your region.
Each fee comes from a different place, at a different time:
• Your commission — deducted from the seller's side of the sale the moment a buyer pays. It never comes out of your pocket; it's your revenue.
• Stripe's processing fee — by default also deducted from the seller's payout at the time of sale, so it does not reduce your commission. You can choose to pay it yourself under Card Fee in the Payment tab, and the calculator shows that case under More fee options.
• Prometora's platform fee — the only fee that's yours to pay, and it is not deducted from individual transactions. Your commission reaches you in full; Prometora's fee is totalled up and billed once a month, together with your subscription.
So on each sale: the buyer pays the full price, the seller receives the price minus your commission and Stripe's fee, and you receive your full commission. Once a month you pay one invoice covering your subscription plus that month's platform fees.Example: a $100 sale at 10% commission (Professional plan)On every sale — automaticBuyer pays $100.00→ Seller receives $86.80 (after your $10 commission and Stripe's $3.20)→ You receive $10.00 — your commission, in fullOnce a month — one invoicePrometora bills youSubscription $175.00+ Platform fee 1.5% of the month's salesNever deducted from your payouts.
• Your commission — deducted from the seller's side of the sale the moment a buyer pays. It never comes out of your pocket; it's your revenue.
• Stripe's processing fee — by default also deducted from the seller's payout at the time of sale, so it does not reduce your commission. You can choose to pay it yourself under Card Fee in the Payment tab, and the calculator shows that case under More fee options.
• Prometora's platform fee — the only fee that's yours to pay, and it is not deducted from individual transactions. Your commission reaches you in full; Prometora's fee is totalled up and billed once a month, together with your subscription.
So on each sale: the buyer pays the full price, the seller receives the price minus your commission and Stripe's fee, and you receive your full commission. Once a month you pay one invoice covering your subscription plus that month's platform fees.Example: a $100 sale at 10% commission (Professional plan)On every sale — automaticBuyer pays $100.00→ Seller receives $86.80 (after your $10 commission and Stripe's $3.20)→ You receive $10.00 — your commission, in fullOnce a month — one invoicePrometora bills youSubscription $175.00+ Platform fee 1.5% of the month's salesNever deducted from your payouts.
Yes! Click the Share link button to copy a link with all your settings encoded.
When someone opens the link, the calculator automatically loads your commission rate, AOV, monthly orders, selected plan, currency and any extra fee options. Great for sharing projections with co-founders or investors.
When someone opens the link, the calculator automatically loads your commission rate, AOV, monthly orders, selected plan, currency and any extra fee options. Great for sharing projections with co-founders or investors.
The Goal Calculator works in reverse — enter your target monthly revenue and it tells you how many orders you need to reach that goal.
It factors in your commission rate, AOV, Prometora's fee and subscription, and any extra fee options you have set, to give you a realistic order target.
It factors in your commission rate, AOV, Prometora's fee and subscription, and any extra fee options you have set, to give you a realistic order target.
Break-even is the number of orders you need each month to cover your Prometora subscription cost.
Once you exceed break-even, every additional order is pure profit (minus Prometora's small transaction fee). The calculator shows you exactly where this threshold is.
Once you exceed break-even, every additional order is pure profit (minus Prometora's small transaction fee). The calculator shows you exactly where this threshold is.
Profit Margin shows what percentage of your total GMV (gross merchandise value) you keep as net profit.
For example, if your GMV is $5,000 and your net revenue is $300, your profit margin is 6% of GMV. This helps you understand your take-home rate at a glance.
For example, if your GMV is $5,000 and your net revenue is $300, your profit margin is 6% of GMV. This helps you understand your take-home rate at a glance.
Yes! You have several export options:
• Share link - copy a link with your settings to share
• Copy - tab-separated for easy pasting into spreadsheets
• CSV - download the full detailed report
• Sheets - opens a new Google Sheet (paste with Ctrl+V)
• Share link - copy a link with your settings to share
• Copy - tab-separated for easy pasting into spreadsheets
• CSV - download the full detailed report
• Sheets - opens a new Google Sheet (paste with Ctrl+V)
It depends on your expected volume:
• Professional (1.5% fee, $175/mo) — best for getting started and growing
• Business (1% fee, $249/mo) — higher volumes, includes webhooks
Use the calculator to compare — try different plans to see which gives you the best return. View pricing plans →
• Professional (1.5% fee, $175/mo) — best for getting started and growing
• Business (1% fee, $249/mo) — higher volumes, includes webhooks
Use the calculator to compare — try different plans to see which gives you the best return. View pricing plans →
Yes! Your calculator settings are automatically saved to your browser.
When you return to this page, your commission rate, AOV, monthly orders, plan, currency and extra fee options will be restored. Click Reset to go back to the starting numbers.
When you return to this page, your commission rate, AOV, monthly orders, plan, currency and extra fee options will be restored. Click Reset to go back to the starting numbers.