Target ROAS Calculator
Turn your order economics into a Target ROAS percentage, ready to enter into a Google Ads bid strategy.
Your numbers
What you pay, minus any shipping the customer pays.
As a % of order value, after product, fulfilment, fees and ad spend.
Your result · updates as you type
Target ROAS to enter in Google Ads
270%
Google Ads asks for Target ROAS as a percentage: revenue ÷ spend × 100%. That's 2.70x, so $1 of ad spend needs to bring back $2.70 of revenue.
- Break-even ROAS
- 1.92x
- As a multiplier
- 2.70x
- Left for ads per order at target
- $22.26
In Google Ads, set this under the campaign's bidding settings with **Maximize conversion value** and a **Target ROAS**. Search and Shopping campaigns need at least 15 conversions in the last 30 days before Target ROAS bidding has enough data to work with, so build up standard bidding history first on a new account.
Breakdown
- Order value
- $60.00
- Product cost
- −$20.00
- Shipping and fulfilment
- −$7.00
- Payment fees
- −$1.74
- Left before ads (break-even)
- $31.26
- Profit target (15% of order value)
- −$9.00
- Left for ads at your target
- $22.26
How Google Ads wants Target ROAS entered
Google Ads asks for Target ROAS as a percentage, not a multiplier: conversion value divided by ad spend, times 100%. A target of “500%” means you want $5 back for every $1 spent. This calculator does that division for you and hands back the percentage to paste straight into the bidding settings.
Example: the default numbers
- Order value
- $60.00
- Product cost + fulfilment + fees
- $20 + $7 + $1.74 = $28.74
- Left before ads
- 60 − 28.74 = $31.26
- Profit target (15% of order value)
- $9.00
Left for ads after the profit target is 31.26 − 9 = $22.26. Target ROAS is 60 ÷ 22.26 × 100% = 270%, or 2.70x.
Setting the bid strategy in Google Ads
- 01
Open bidding settings
In the campaign's settings, choose Maximize conversion value and enter your Target ROAS as the percentage from this calculator.
- 02
Check your conversion history
Search and Shopping campaigns need at least 15 conversions in the past 30 days before Target ROAS bidding has enough data to optimize against.
- 03
Revisit it
Recalculate whenever your costs, fees or profit goal change. A stale Target ROAS either starves the campaign of spend or lets it overspend.
What this leaves out
- Set it above break-even, not at it. Aiming exactly at break-even leaves no room for tracking gaps or a slow week of returns.
- Google's reported ROAS can differ from yours, especially with view-through conversions or cross-device attribution counted in.
- New campaigns need history first. Run standard bidding until you clear the conversion threshold, then switch to Target ROAS.
Questions people ask
How do I calculate Target ROAS?
Divide the revenue you want per dollar of ad spend, then multiply by 100%. If $1 of ads should bring back $2.70, Target ROAS is 270%.
Is Target ROAS a percentage or a multiplier?
Google Ads enters it as a percentage (500% means 5x), even though people often talk about it as a multiplier in conversation.
How many conversions do I need before using Target ROAS bidding?
Google recommends at least 15 conversions with values in the past 30 days for Search and Shopping campaigns before the algorithm has enough data.
Should my Target ROAS be my break-even ROAS?
No. Break-even is the floor. Set Target ROAS above it by whatever profit margin you want to keep after ads.
Related tools
Want this builtinto your store?
I'm Emmanuel, a Shopify and WooCommerce developer. If this tool pointed at something you'd rather have fixed for you (a faster store, cleaner product data, a migration, a custom feature), send me a note.
Emmanuel Asika
Shopify & WooCommerce developer, Dublin
I build and fix online stores: new builds, migrations, speed, SEO and the custom bits apps can't do.
Last reviewed 30 September 2026.