Target ROAS is the return on ad spend required to hit a chosen profit margin after advertising. It is calculated by reserving the desired profit from the contribution before advertising, then dividing revenue by the ad spend that remains.

How is target ROAS different from break-even ROAS?

Break-even ROAS is the floor at which contribution just covers ad spend and profit is zero. Target ROAS reserves a desired profit margin on top of break-even, so it is always higher for any positive margin. The gap between them is what the profit goal costs in ROAS.

Should I enter the calculated target ROAS directly into Google Ads?

Not automatically. This is a financial planning target built from unit economics. A platform target also needs to reflect historical conversion performance, attribution windows and campaign volume. Use the planning target as a starting point and adjust it with live campaign data.

What happens if my desired margin is too high?

If the desired profit margin meets or exceeds the available contribution margin, no ad budget remains. The calculator flags this instead of returning an infinite ROAS. Reduce the desired margin or improve the cost structure.

Does target ROAS include fixed costs?

No. Target ROAS preserves contribution after ad spend, not overall profit. Fixed operating expenses, taxes and refunds still need to be covered separately. The calculator reflects only the variable costs you enter.

Why does the required ROAS rise sharply near my contribution margin?

As the desired margin approaches the contribution margin, allowed ad spend shrinks toward zero, so revenue divided by a tiny ad spend produces a very large ROAS. The scenario table shows this non-linear trade-off for your own inputs.

Target ROAS Calculator

Target ROAS is the return on ad spend you need to hit a chosen profit margin after advertising. Enter your revenue, variable costs and desired profit margin to estimate a planning ROAS target, the maximum ad spend per order it allows, and a scenario table across several margins.

Last reviewed: 2026-08-19

Target ROAS Calculator inputs

Fill in the fields below, then select Calculate. Nothing is submitted automatically.

Revenue / Average Order Value

The selling price or average order value before any costs.

Cost of Goods Sold

The product cost you pay per order.

Shipping & Fulfillment

Pick, pack, shipping and handling per order (optional).

Payment Processing Fee %

Percentage fee charged by the payment processor (optional).

Payment Processing Fixed Fee

Fixed per-transaction fee from the payment processor (optional).

Other Variable Costs

Commissions, packaging, returns allowance or other per-order costs (optional).

Desired Profit Margin After Advertising %

The profit margin you want to keep after ad spend.

Currency

Changing the currency changes formatting only. It does not convert values between currencies.

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Results

Enter your figures above and select Calculate. Results appear here with clear labels — never colour alone.

What Is Target ROAS?

Target ROAS is the return on ad spend you need to hit a chosen profit margin after advertising. Where break-even ROAS tells you the minimum ROAS to avoid losing money, target ROAS tells you the ROAS required to keep a specific profit on top. It turns a profit goal into a concrete ad-spend ceiling per order.

Because it is built from your unit economics rather than platform settings, it is a financial planning target — the ROAS your campaign should produce to preserve the margin you want, before fixed overhead.

Target ROAS Formula

Contribution = Revenue − Variable Costs
Desired Profit = Revenue × Desired Profit Margin
Allowed Ad Spend = Contribution − Desired Profit
Target ROAS = Revenue ÷ Allowed Ad Spend

Allowed ad spend is what remains of the contribution after you reserve your desired profit. Target ROAS is the revenue that remaining spend has to generate. As the desired margin rises, allowed ad spend falls and the required ROAS rises.

Target ROAS Example

A product sells for $100 with $60 of variable costs and a 10% desired profit margin after advertising.

Contribution = $100 − $60 = $40
Desired profit = $100 × 10% = $10
Allowed ad spend = $40 − $10 = $30
Target ROAS = $100 ÷ $30 ≈ 3.33x

To keep a 10% margin, ad spend should be no more than $30 per order, which corresponds to a planning ROAS target of about 3.33x. Compare that with the 2.5x break-even ROAS for the same product: the extra 0.83x is what the profit goal costs.

How Target ROAS Is Calculated

The calculation mirrors break-even ROAS, then reserves your desired profit before ad spend.

Sum variable costs from product cost, shipping, processing fees and other per-order costs.
Subtract them from revenue to find the contribution before advertising.
Multiply revenue by your desired profit margin to find the profit to reserve.
Subtract that profit from the contribution to find the allowed ad spend.
Divide revenue by allowed ad spend to get the target ROAS.

The scenario table below the results shows how the target ROAS shifts across 0%, 5%, 10%, 15% and 20% margins, so you can see the trade-off between profit and ad budget at a glance.

Break-Even ROAS vs Target ROAS

Break-even ROAS is the floor: the ROAS at which contribution just covers ad spend and profit is zero. Target ROAS is the same calculation with a profit margin reserved on top, so it is always higher than break-even ROAS for any positive desired margin.

The gap between the two is the price of your profit goal. A 2.5x break-even ROAS becomes a 3.33x target at a 10% margin. Reading both together tells you how much ROAS headroom your margin actually buys. For the floor, use the break-even ROAS calculator; for evaluating whether your current ROAS is enough, see what a good ROAS means for your business.

Common Target ROAS Mistakes

Confusing the planning target with a platform bid. Target ROAS is a financial planning number; advertising platforms need their own configuration informed by history and volume.
Reserving profit before checking contribution. If the desired margin meets or exceeds the contribution margin, no ad budget remains — the calculator flags this rather than returning an infinite ROAS.
Ignoring variable costs. Shipping, processing and returns reduce contribution and raise the required ROAS.
Setting one target across products with different margins. A single target hides thin-margin products that cannot reach it profitably.
Forgetting fixed costs. Target ROAS preserves contribution after ad spend, not overall profit; fixed overhead still needs covering.

How Profit Margin Affects Target ROAS

Every point of desired margin is taken from the contribution available for ad spend, so the required ROAS rises as the margin rises. With $40 of contribution on $100 of revenue, the target ROAS moves from 2.5x at 0% margin to 3.33x at 10%, 5x at 20% and 10x at 36% — the point just before the margin consumes the whole contribution.

The relationship is not linear in ROAS terms. Near the top of the available contribution margin, small increases in desired profit push the required ROAS up sharply because allowed ad spend is shrinking toward zero. The scenario table makes this visible for your own inputs.

Target ROAS and CPA

Target CPA is the allowed ad spend per order — the most you can pay to acquire one customer and still keep the desired profit margin. It is the same number as allowed ad spend, expressed as a currency ceiling rather than a ratio.

If your target CPA is $30, any channel acquiring customers for less than $30 preserves your margin; any channel costing more erodes it. Pairing target ROAS with target CPA gives you both the ratio for platform dashboards and the per-order ceiling for budgeting.

Target ROAS for Google Ads

Google Ads offers a Target ROAS bidding strategy, but the value this calculator produces is not automatically the value to enter there. A financial planning target is built from unit economics; an advertising platform target also needs to reflect historical conversion rates, attribution windows, campaign maturity and the volume needed for the algorithm to optimize.

Use the planning target as a starting point and a sanity check. If your campaigns already deliver well above it, the target is feasible; if they deliver below it, raising the platform target will not conjure more return — it will restrict spend. Distinguish the financial planning target from the advertising platform bidding configuration, and adjust the platform value using live campaign performance.

Frequently asked questions

Break-Even ROAS Calculator
Find the minimum ROAS needed to cover your product and variable costs.
ROAS Calculator
Measure revenue generated for each unit of advertising spend.
Profit Margin Calculator
Find gross, operating or net margin from revenue and cost figures.
Customer Lifetime Value Calculator
Calculate LTV for e-commerce and subscription businesses and compare with CAC.

Related guides

What Is a Good ROAS?

Disclaimer

Results from this calculator are estimates for general information only and are not financial, accounting, tax, investment or legal advice. Verify important figures with a qualified professional. Read our full disclaimer.