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Free tool · ROAS calculator
What ROAS do you need to profit?
A 3x ROAS can lose money. Enter your order value, costs and ad results to see the ROAS you need to break even, what each sale really earns and the most you can pay for an order.
Free, no sign-upRuns in your browserNothing is saved
Break-even ROAS2.13x
Your ROAS3.00xPass
Above break-even with room to spare.
- Break-even CPA
- $37.60
- Profit after ads
- $2,050
- Per order
- $10.93
Your numbers
Where the money goes.
Change any number in the calculator and everything here follows. Point at the chart to read any ROAS.
One $80.00 orderMargin before ads: 47%
- Product$28.00
- Shipping & packing$8.00
- Payment fees$2.40
- Returns & discounts$4.00
- Left before ads$37.60
10%
- Your ROAS
- 3.00x
- Revenue from ads ÷ ad spend
- Break-even ROAS
- 2.13x
- 1 ÷ margin before ads
- Target for 10% profit
- 2.70x
- 1 ÷ (margin − profit kept)
- Break-even CPA
- $37.60
- Most you can pay per order
- Your CPA
- $26.67
- Ad spend ÷ orders from ads
- Orders from ads
- 188
- Revenue from ads ÷ order value
01 — The math
Four numbers, one line each.
Everything on this page comes from these four lines. Here they are with the example’s numbers.
ROAS
Revenue from ads ÷ ad spend
15,000 ÷ 5,000 = 3.00x
Margin
(Order value − costs per order) ÷ order value
(80 − 42.40) ÷ 80 = 47%
Break-even ROAS
1 ÷ margin
1 ÷ 0.47 = 2.13x
Break-even CPA
Order value × margin
80 × 0.47 = 37.60
02 — Break-even by margin
The lower your margin, the higher the bar.
Break-even ROAS for common margins after product, shipping and fees. Find your row before you judge a campaign.
| Margin | Break-even ROAS |
|---|---|
| 20% | 5.00x |
| 25% | 4.00x |
| 30% | 3.33x |
| 35% | 2.86x |
| 40% | 2.50x |
| 45% | 2.22x |
| 47%You | 2.13x |
| 50% | 2.00x |
| 60% | 1.67x |
| 70% | 1.43x |
| 80% | 1.25x |
Your margin before ads: 47%. Break-even ROAS = 1 ÷ margin.
03 — ROAS, MER or profit
Which number to watch.
- 01
ROAS
Revenue an ad platform credits to its ads, ÷ its spend. Good for comparing campaigns inside one platform; platforms can claim the same order twice.
- 02
MER (blended ROAS)
All store revenue ÷ all ad spend. No platform can inflate it, so it keeps the whole mix honest.
- 03
Contribution after ads
What’s left after product, shipping, fees, returns and ads. The number the bank sees.
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FAQ
Questions about ROAS.
Not on the list? Ask on a call, or by email.
One above your break-even. A store with 70% margins profits at 1.5x; one with 30% margins needs more than 3.3x to break even. That’s why the calculator starts from your costs.
Use it to compare campaigns, but check it against your store’s numbers. Platforms count conversions their own way, and several can claim the same order. Blended ROAS (all revenue ÷ all ad spend) keeps everyone honest.
Everything that grows with each order: product cost, shipping and packing, payment fees, returns and discounts. Leave out fixed costs like rent and salaries; they don’t change the break-even of one order.
The most you can pay in ads for one order before it loses money: your order value times your margin.
No. It runs in your browser and nothing is sent anywhere.
Still unsure?Saimul Islam reads every report people bring to a call.Know your number?
Let’s beat it.
Book a strategy call
We plan spend around your break-even, not a platform’s ROAS. Bring your numbers to a [30]-minute call.
Or write to [hello@domain.com]
