ROAS Calculator
Measure your return on ad spend for Meta, Facebook, TikTok or Google ads: enter spend and revenue to get your ROAS, ACOS and real profit, or flip it around and see the revenue you need to hit a target.
Any period works: a day, a campaign, a month. Just use the same period for revenue.
What stays from revenue after product and delivery costs, before ads.
Your ROAS
2.80xYou earn $2.80 of revenue for every $1.00 of ad spend.
ACOS
36%Gross return
$3,600Profit after costs
$240At a 40% margin your break-even is 2.50x, so 2.80x is making you money. Full per-order math is in our break-even ROAS calculator.
Pixels miss 15–30% of conversions, so a reported 2.80x could really be 3.50x. CollectForm sends conversions server-side, so the number you see is the number you got.
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What is ROAS?
ROAS (return on ad spend) is the ratio of revenue your ads generate to what they cost: ROAS = revenue ÷ ad spend. It is the fastest health check in paid advertising, the number Meta, TikTok and Google all optimize toward, and the metric behind bidding strategies like target ROAS.
A ROAS of 2.8x means every dollar of ad spend brought back $2.80 of revenue. Written as a percentage that is 280%; written as a ratio it is 2.8:1. All three mean the same thing.
The ROAS formula, with examples
ROAS
ROAS = revenue ÷ ad spend
ACOS (the inverse)
ACOS = ad spend ÷ revenue × 100
Real profit
Profit = (revenue × margin) − ad spend
| Ad spend | Revenue | ROAS | ACOS |
|---|---|---|---|
| $1,000 | $2,000 | 2.00x | 50% |
| $2,000 | $5,600 | 2.80x | 36% |
| $5,000 | $20,000 | 4.00x | 25% |
| $10,000 | $18,000 | 1.80x | 56% |
What is a good ROAS for Meta and Facebook ads in 2026?
The median ecommerce ROAS on Facebook ads runs 2x to 2.9x in 2026, and 3x to 5x is generally considered good. Prospecting campaigns typically land at 1.5x to 2.5x, retargeting at 4x to 8x, and Advantage+ shopping campaigns average around 4.5x. TikTok tends to run cheaper per impression but converts at lower rates, so its ROAS distribution is similar.
But "good" is personal: it is any number meaningfully above your break-even. A 2x ROAS at 60% margins beats a 4x ROAS at 20% margins. Get your threshold from our break-even ROAS calculator and compare.
Benchmarks compiled July 2026 from public reports by TrueProfit, Mako Metrics and Triple Whale.
ROAS vs ROI vs ACOS vs break-even ROAS
Four metrics, one family. Knowing which one you are looking at prevents expensive misreadings:
| Metric | Formula | What it tells you | Watch out for |
|---|---|---|---|
| ROAS | revenue ÷ ad spend | Revenue efficiency of your ads | Ignores product costs; a high ROAS can still lose money |
| ACOS | ad spend ÷ revenue | The same thing, inverted (Amazon's convention) | Break-even ACOS equals your profit margin |
| ROI | profit ÷ total cost | True return counting every cost, not just ads | Harder to measure per campaign in real time |
| Break-even ROAS | 1 ÷ profit margin | The ROAS where ads make exactly zero profit | The benchmark every ROAS should be compared against |
Why ROAS alone can lie to you
Two blind spots catch advertisers constantly:
- ROAS ignores your costs. Revenue ÷ spend says nothing about product costs, shipping or fees. A 3x ROAS is a win at 50% margins and a slow bleed at 25%. That is why the calculator above asks for your margin and shows profit after costs, not just the ratio.
- ROAS is only as accurate as your tracking. Browser pixels miss 15–30% of conversions to ad blockers, iOS privacy and consent banners. A campaign truly earning 2.9x can report 2.3x, get labeled a loser and get killed while it was making money. CollectForm sends conversions server-side via Meta CAPI and the TikTok Events API, so the ROAS you act on is the ROAS you actually earned. If you run lead gen instead of ecommerce, value each lead first with the lead value calculator.
ROAS calculator FAQ
ROAS (return on ad spend) measures how much revenue your ads generate per dollar spent. The formula is ROAS = revenue ÷ ad spend. Spending $2,000 on ads that generate $5,600 in revenue is a 2.8x ROAS, sometimes written as 280% or 2.8:1.
Divide the revenue attributed to your ads by what you spent on them over the same period. Example: $5,600 revenue ÷ $2,000 spend = 2.8x ROAS. This calculator also shows the inverse (ACOS), your gross return, and, once you add your profit margin, whether that ROAS is actually making money.
A 4x ROAS means every $1 of ad spend returns $4 of revenue. Whether that is good depends on your profit margin: at a 40% margin your break-even is 2.5x, so 4x is comfortably profitable. At a 20% margin break-even is 5x, and the same 4x loses money on every sale.
The median ecommerce ROAS on Facebook sits around 2x to 2.9x in 2026, and 3x to 5x is generally considered good. Prospecting campaigns typically run 1.5x to 2.5x, retargeting runs 4x to 8x, and Advantage+ shopping campaigns average about 4.5x. Compare any of these to your own break-even before judging.
ROAS compares revenue to ad spend only (revenue ÷ ad spend), while ROI compares profit to total cost (profit ÷ all costs). A campaign can show a healthy 3x ROAS and still have negative ROI once product costs, shipping and fees are counted. ROAS is the fast operational metric; ROI is the financial truth.
They are the same measurement flipped. ROAS is revenue ÷ ad spend (bigger is better), ACOS is ad spend ÷ revenue (smaller is better). A 4x ROAS equals a 25% ACOS. Amazon sellers usually work in ACOS, while Meta, TikTok and Google advertisers work in ROAS.
No. ROAS only compares revenue to ad spend and completely ignores what it costs you to deliver the product or service. That is why a high ROAS can still lose money. To account for costs, compare your ROAS against your break-even ROAS, which is 1 divided by your profit margin.
Three reasons: different attribution models (Meta credits itself more generously than GA4), different attribution windows, and tracking signal loss, since browser pixels miss 15% to 30% of conversions. Server-side tracking narrows the gap by reporting conversions the pixel never sees.
Yes, completely free with no signup, and it runs in your browser. It works for Facebook, Instagram, Meta, TikTok, Google or any channel, because ROAS is the same division everywhere: revenue divided by ad spend.
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Your ROAS is only as real as your tracking
You own the landing page and funnel. CollectForm is the lead form and server-side tracking you embed into it, so Meta and TikTok see every conversion and the ROAS in your dashboard matches reality.
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