Return on ad spend, ACoS, and ad profitability from any campaign data.
Campaign data
Enter ad spend and revenue to calculate your ROAS
Amounts are in €. Amazon's fees are part of your costs on Amazon Ireland; these are the figures fba.tools uses for them.
| Size tier | Fee |
|---|---|
| Small envelope | €2.18 |
| Standard envelope | €2.65 |
| Small parcel | €3.04 |
| Standard parcel | €4.27 |
| Large parcel | €5.84 |
| Extra large | €10.07 |
| Category | Rate |
|---|---|
| Automotive | 12% |
| Baby | 15% |
| Books | 15% |
| Clothing | 15% |
| Electronics | 8% |
| Garden | 15% |
| Health & Beauty | 15% |
| Home & Kitchen | 15% |
| Jewellery | 20% |
| Kitchen | 15% |
| Music | 15% |
| Office | 15% |
| PC | 8% |
| Pet Supplies | 15% |
| Sports | 15% |
| Toys & Games | 15% |
| Video Games | 15% |
Amazon changes its fees from time to time, and some categories have tiered rates or minimum fees. Confirm the rate for your category in Seller Central before you rely on it.
ROAS (Return on Ad Spend) tells you how much revenue you generate per unit of ad spend. A ROAS of 4× means every £1 in ads generates £4 in revenue. Whether that's profitable depends on your margin — if your margin is 30%, you need at least 3.3× ROAS to break even on ads.
Track ROAS at the campaign, ad group, and keyword level. Campaigns with high ROAS are efficiently deploying budget; campaigns with low ROAS need either better targeting, better creative, or a higher bid floor. Scaling winners while cutting losers is the core of profitable PPC management.
FBA Profit Calculator
True net profit after referral fees, FBA fees, COGS, PPC, and VAT.
Fee Calculator
Full referral and FBA fulfilment fee breakdown for Amazon.ie by category and size tier.
VAT Calculator
VAT liability on Amazon.ie sales, FBA fees, and imports. Ireland and EU.
ACoS Calculator
Break-even ACoS, target ROAS, and true profit at any ad spend level.