All platforms — 2026 rates

Break-Even ROAS Calculator

Calculate your break-even Return on Ad Spend, maximum CPA, and break-even CPC for profitable ecommerce advertising.

Break-even ROAS 3.09x

Product Economics

Live

Product Selling Price

Product Cost / COGS

Platform Fee

TikTok Shop US 6% (add any creator % here). Amazon 15%, eBay 13.6%, Etsy 6.5%.

Payment Processing

Payment Flat Fee

Shipping Cost

Target Profit Margin

Set to 0 for true break-even. Add margin for target profitability.

Average Conversion Rate

Typical ecommerce: 1-3%. Used to calculate break-even CPC.

Revenue Per Sale

$49.99

Total Costs (excl. ads)

-$28.80

Gross Profit (before ads)

$21.19

Target Profit Per Sale

$5.00

Max Ad Spend Per Sale

$16.19

Maximum CPA
$16.19

Break-Even CPC

$0.40

How to Use Break-Even ROAS

ROAS (Return on Ad Spend) tells you how much revenue you need per dollar of ad spend. A break-even ROAS is the minimum ROAS required to cover all your costs. Anything above it is profit.

Break-Even ROAS = Selling Price / Max Ad Spend Per Sale. If your ROAS in your ad platform is below this number, you are losing money on every sale.
Maximum CPA (Cost Per Acquisition) = the most you can pay to acquire one customer and still hit your target margin.
Break-Even CPC = Maximum CPA × Conversion Rate. This is the highest cost-per-click you can afford given your conversion rate.

Example

If your break-even ROAS is 3x and your ad dashboard shows a 4x ROAS, you are above water. If it drops to 2.5x, every ad-driven sale loses money. For a TikTok Shop US SKU, set Platform Fee to 6%, Payment Processing to 0.0%, and Payment Flat Fee to $0.00 — the 6% referral already includes processing. Worked $29.99 / FBT / creator stacks are on TikTok Shop break-even ROAS after the 6% fee.

Interpret the output

Lower break-even ROAS = more room for error.

A break-even ROAS of 2x means you only need $2 in revenue per $1 of ad spend, which is easy to achieve. A break-even ROAS of 5x+ means your margins are tight and you need very efficient ads to be profitable.

Use this when

You need to know the minimum ROAS to stay profitable on paid ads.

Enter your product economics to find out the exact ROAS you need to break even (or hit a target margin) on Facebook, Google, TikTok, or any paid channel. Also shows your maximum CPA and CPC.

break-even ROAS max CPA break-even CPC

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