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.

Quick Start with Presets

Net Monthly Revenue

$276

After Prometora & Stripe fees

Annual Projection

$3,312

Net revenue at this volume × 12

Above Break-Even

36 orders

64 above — subscription covered

Your Settings

Per Transaction Breakdown

Sale Price
$50.00
Your Commission (10%)
+$5.00
Prometora Fee (1.5%)

Billed to you once a month with your subscription

-$0.75
Stripe Fee (2.9% + $0.30)

Deducted from seller · US card rate

-$1.75
Your Net Profit

Per sale, before your monthly subscription

$4.25
Seller receives (for reference)
$43.25

Monthly Projections

GMV$5,000
Your Commission$500
Prometora Fees-$75
Subscription-$149
Net Monthly Revenue$276
Profit Margin5.5% of GMV

Yearly Projections

Annual GMV$60,000
Annual Commission$6,000
Annual Net Revenue$3,312

Like the look of $276/month?

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Revenue Growth Chart

Visualize how your net revenue scales with order volume

50
$64
100
You
$276
250
$914
500
$1,976
1,000
$4,101

Monthly orders → Net revenue/month

Scaling Projections

See how your revenue grows as your marketplace scales (based on $50 AOV, 10% commission, Professional plan)

OrdersGMVCommissionFeesNet
50$2,500$250-$187$64
100Current$5,000$500-$224$276
250$12,500$1,250-$337$914
500$25,000$2,500-$524$1,976
1,000$50,000$5,000-$899$4,101

Ready to Start Earning?

With 100 orders at $50 AOV, you could be earning $276/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.
The calculator includes:

Your commission rate — the percentage you set
Prometora platform fee — varies by plan: 2% (Starter), 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

Stripe's fee comes out of the seller's payout, so it doesn't reduce your commission. The per-transaction breakdown shows it for the full picture, but 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 — also deducted from the seller's payout at the time of sale. It does not reduce your commission.
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 $149.00+ Platform fee 1.5% of the month's salesNever deducted from your payouts.
Yes! Click the Share 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, and selected plan. 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, and Prometora fees 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.
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.
Yes! You have several export options:

Share — copy a link with your settings to share
Copy Data — tab-separated for easy pasting into spreadsheets
Download CSV — full detailed report
Google Sheets — opens a new sheet (paste with Ctrl+V)
It depends on your expected volume:

Starter (2% fee, $99/mo) — great for getting started
Professional (1.5% fee, $149/mo) — best for growing marketplaces
Business (1% fee, $249/mo) — higher volumes, includes API access and 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, and plan selection will be restored. Clear your browser data to reset.
Marketplace Revenue Calculator: Free Projection Tool 2026 | Prometora