Target ROAS: what it means in Google Ads and how to set one

Target ROAS is the average conversion value you ask Google Ads to get for each unit you spend, written as a percentage. Google's own example is $5 in sales for every $1 of ad spend, which is a 500% target. Google then sets bids to reach that ratio using the conversion values your tracking reports. So the target is in Google's numbers. It isn't in payments that cleared.

The target ROAS formula

Target ROAS = conversion value ÷ ad spend × 100%

Google's help page writes it as "$5 USD in sales ÷ $1 USD in ad spend x 100% = 500% target ROAS" (Google Ads help: Target ROAS). The matching report column is Conv. value / cost. Google defines it as "Conversion value per cost = Conv. value / cost" and says it "estimates your return on investment" (Google Ads help: conversion value per cost). The column shows a ratio such as 5.00. The target is the same number times 100, so 500%.

How Google uses the target

Google says it "will set maximum cost-per-interaction (max. CPC) bids to maximize your conversion value, while trying to achieve an average return on ad spend (ROAS) equal to your target." The word that matters is average. Google adds: "Some conversions may return a higher ROAS and some may return a lower ROAS, but altogether Google Ads will try to keep your conversion value per cost equal to the target ROAS you set" (Google Ads help).

In Google's example, a women's shoe store wants $5 of sales for each $1 spent on ads, so it sets 500%. Some searches will bring in more than that and some less. The bidder aims for 500% across the lot.

On r/googleads, a reply to a store owner put the difference from plain value bidding this way. Maximize conversion value "is basically saying, “Get us as much revenue as you can.” Target ROAS adds a guardrail: “Try to get that revenue while staying around this return.”" (r/googleads, August 2026)

Before you can use it

Google lists these conditions (Google Ads help):

Conversion values. "Before you can apply a Target ROAS bid strategy to your campaigns, you’ll need to set values for the conversions you're tracking."

Conversion volume. For Search and Shopping campaigns: "At least 15 conversions in the past 30 days at the conversion tracking level." Display, App, Demand Gen and other campaign types have their own thresholds on the same page.

The name. From June 2026, Google is renaming "Maximize conversion value with a Target ROAS" to "Target ROAS". Google says "the underlying bidding behavior remains exactly the same."

The August update. Google says that starting 17 August 2026 it is updating its bidding systems for campaigns limited by budget, and that campaigns using Target ROAS "may" see "temporary performance and traffic fluctuations."

Picking a starting number

Google's method: add the Conv. value/cost column, "Then, multiply conversion value per cost metric by 100 to get your Target ROAS percent." It also says to make sure "the time frame of ROAS evaluation excludes the most recent conversion delay period" (Google Ads help). Recent days look worse than they will once late conversions arrive, so leave them out.

Don't aim too high on day one. Google warns that "setting a target that's too high may limit the amount of traffic your ads may get." And when you change a target, "the bidder will react immediately but will need some time to hit the new target (give it 1-2 conversion cycles)."

One r/googleads reply to a question about managing target ROAS for an ecommerce brand: "Set one fixed target ROAS based on your break even margin and adjust it slowly in small increments only after stable conversion volume otherwise the system keeps resetting learning and performance swings" (r/googleads, February 2026).

Set it above your break-even floor

Break-even ROAS is 1 ÷ gross margin. Our break-even ROAS calculator works it out. Below that line, the ads lose money on product cost alone. The catch is that break-even is measured in money you keep, and Google's target is measured in Google's conversion value. Those two can differ, so translate before you compare.

Illustrative example. Round numbers for a made-up store, not a customer or a benchmark.

Gross margin is 40%. Break-even ROAS = 1 ÷ 0.40 = 2.5, which is 250%.

The campaign runs at a 400% target in Google's numbers. On €1,000 of spend, Google reports €4,000 of conversion value.

Payments for the same dates come to €2,800. That's 70% of Google's figure. So in payments, the campaign returns €2,800 ÷ €1,000 = 280%.

280% is above the 250% floor, so the ads still pay for their product cost. But the margin is thin: 40% of €2,800 is €1,120 of gross profit on €1,000 of spend.

Now work backwards. To stay at 250% in payments when payments run at 70% of Google's value, the target in Google's numbers has to be at least 250% ÷ 0.70, which is about 357%. That's your floor in Google's terms. A target of 340% would look fine in Google Ads and still lose money on product cost.

Target ROAS vs the ROAS in your payments

Target ROAS is a bid setting in Google's numbers. The ROAS that pays the bills is the one in your payments. Google's conversion value depends on the values you set and on Google's own counting. Payments are what cleared. Our true ROAS guide has the steps for turning one into the other. To size the gap for an account, use the platform vs payment gap calculator.

If your margin varies a lot by product, ROAS can hide it. POAS uses profit instead of revenue. And if you're mixing up the two return metrics, see ROAS vs ROI.

Avg. target ROAS and Actual ROAS

You may change the target several times in a month. Google's Avg. target ROAS column handles that: it's "the traffic-weighted average ROAS that your bid strategy optimized for," so it "may be different from the target ROAS that you set." In the bid strategy report, it sits beside "Actual ROAS", which "represents the actual ROAS that this strategy was able to achieve" (Google Ads help). Google notes the Avg. target ROAS column is supported for Performance Max, Search and Shopping campaigns.

Compare the two for the same dates before you move the target again. A poster on r/googleads did the opposite after the August update: "Since Aug 17th, although I altered my targets to align with actual ROAS, performance has plummeted to ~350% ROAS." (r/googleads, August 2026) Several replies pointed to the size of the change and a new learning period.

What's the lowest target you'd accept for your best campaign once it's in payments? Work it out before the next change.