What is break even ROAS and how do you calculate it?

Break even ROAS is the minimum return on ad spend at which a campaign stops losing money — below it, the combined cost of advertising and goods exceeds the revenue earned. It follows from your gross margin alone: break even ROAS = 1 ÷ gross margin. Together with order value and conversion rate it sets the maximum a click and a new customer may cost.

How do you calculate maximum CPC from order value and margin?

Max CPA = AOV × (gross margin ÷ 100). Max CPC = max CPA × (conversion rate ÷ 100). Example: $100 order value, 50 % margin, 2 % conversion rate → max CPA = $50, max CPC = 50 × 0.02 = $1.00.

What is EPC (earnings per click) and how is it calculated?

EPC shows how much revenue an average visitor generates. Formula: EPC = AOV × (conversion rate ÷ 100). Example: $100 order value at a 2 % conversion rate gives an EPC of $2.00. The gap between EPC and your maximum CPC is your margin per click.

Is a lower break even ROAS always better?

Yes. A lower break even ROAS means campaigns turn profitable at lower revenue efficiency, so you have more room when bidding. It falls above all with a higher gross margin, because it follows directly from the margin. A higher conversion rate and a higher order value additionally raise the maximum CPC you can afford.

Break Even ROAS Calculator

Your unit economics as guard rails: break even ROAS, maximum CPA and maximum CPC at a glance.

Average order value ($)

The average value of one order (revenue ÷ orders). The calculator uses it to derive the maximum CPA and CPC per purchase.

Gross margin (%)

The share of revenue left after deducting the cost of goods. It determines the break even ROAS and both bidding ceilings.

Conversion rate (%)

The share of visitors or clicks that complete the goal action (conversions ÷ visitors). It turns the maximum CPA into a maximum bid per click.

Break even ROAS

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Your minimum target ROAS

Maximum CPA

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Your absolute ceiling per new customer

Maximum CPC

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Your highest defensible bid per click

Revenue per click (EPC)

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What an average visitor is worth in revenue

Break even ROAS benchmark

1.0x 1.5x 2.5x 3.5x ≥5.0x

< 1.5x (very good) ~ 2.5x (normal) > 3.0x (difficult)

Break even ROAS sensitivity

Break even ROAS = 1 ÷ gross margin. The curve shows how sharply the minimum climbs as margin falls — orientation for pricing and for the ceilings you set on bids.

Break even ROAS: the minimum return that stops you losing money

Your unit economics set the rules in performance marketing, and this calculator turns them into three hard numbers: the ROAS below which you lose money, and the CPA and CPC ceilings you should never bid past. Your gross margin alone determines the break even ROAS — nothing else. Combined with the conversion rate it produces your revenue per click and your maximum CPC. Pay more than that per click and every additional click makes the loss bigger, however healthy the campaign looks in the dashboard.

Max CPC = (AOV × gross margin) × (conversion rate ÷ 100)

How to calculate break even ROAS, max CPA and max CPC

A shop with a $90 average order value, a 40 % gross margin and a 2.5 % conversion rate:

Average order value$90

Gross margin40 %

Conversion rate2.5 %

Max CPA = 90 × 0.40 = $36

Break even ROAS = 1 ÷ 0.40 = 2.50x

EPC = 90 × 0.025 = $2.25

Max CPC = 36 × 0.025 = $0.90

Every click above $0.90 loses money; every click below it produces margin. The gap between the two — $2.25 of revenue per click against a $0.90 ceiling — is the room you have to work with.

Reading the bar: what your target ROAS says about the product

The bar above places your product honestly. Below 1.5x (green): your margin is strong enough that even average campaigns turn a profit — ideal conditions for scaling. 1.5x–3.0x (amber): solid and reachable, but it takes active campaign management and a decent conversion rate. Above 3.0x (red): structurally hard. A target ROAS in this range is only sustainable on most channels with very low click costs and an unusually high conversion rate. Look at margin or order value first, not at the bidding.

Lowering your break even ROAS: margin, COGS and costs

Raise the margin: a price change or a cost reduction lifts both the maximum CPA and the maximum CPC directly, and lowers the break even ROAS at the same time. It is the only lever that moves all three.
Improve the conversion rate: a higher rate allows a higher bid at the same CPA. Even half a percentage point can raise the maximum CPC by 20–30 %.
Raise the average order value: cross-sells, bundles and upsells increase revenue per order, and every additional unit of order value raises the CPC you can defend.

Frequently asked questions

What is break even ROAS and how do you calculate it?: Break even ROAS is the minimum return on ad spend at which a campaign stops losing money — below it, the combined cost of advertising and goods exceeds the revenue earned. It follows from your gross margin alone: break even ROAS = 1 ÷ gross margin. Together with order value and conversion rate it sets the maximum a click and a new customer may cost.
How do you calculate maximum CPC from order value and margin?: Max CPA = AOV × (gross margin ÷ 100). Max CPC = max CPA × (conversion rate ÷ 100). Example: $100 order value, 50 % margin, 2 % conversion rate → max CPA = $50, max CPC = 50 × 0.02 = $1.00.
What is EPC (earnings per click) and how is it calculated?: EPC shows how much revenue an average visitor generates. Formula: EPC = AOV × (conversion rate ÷ 100). Example: $100 order value at a 2 % conversion rate gives an EPC of $2.00. The gap between EPC and your maximum CPC is your margin per click.
Is a lower break even ROAS always better?: Yes. A lower break even ROAS means campaigns turn profitable at lower revenue efficiency, so you have more room when bidding. It falls above all with a higher gross margin, because it follows directly from the margin. A higher conversion rate and a higher order value additionally raise the maximum CPC you can afford.