2026 Amazon ROAS & ACoS Converter: Calculate Return on Ad Spend multipliers, revenue generated per $1 spent, and perform instant bidirectional ACoS % $\leftrightarrow$ ROAS conversions.
ROAS Tool Mode
Mode A: Spend & Revenue Calculator
Campaign Spend & Sales Revenue
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ROAS Performance OutputReturn Multiplier
Return on Ad Spend (ROAS)
4.50x
ACoS = 22.2% | Revenue per $1 = $4.50
Revenue Generated Per $1 Ad Spend(PPC Yield)
$4.50For every $1.00 spent on Amazon ads
ROAS ↔ ACoS Equivalents Reference Table
Standard BenchmarksROAS (Multiplier)
ACoS (%)
1.00x
100.0%
1.25x
80.0%
1.50x
66.7%
2.00x
50.0%
2.50x
40.0%
3.00x
33.3%
3.50x
28.6%
4.00x
25.0%
5.00x
20.0%
6.00x
16.7%
7.00x
14.3%
8.00x
12.5%
10.00x
10.0%
Frequently Asked Questions — Amazon ROAS & ACoS Conversion
Key facts regarding ROAS multipliers, revenue per dollar, and conversion benchmarks
What is Amazon ROAS (Return on Ad Spend)?▼
ROAS (Return on Ad Spend) measures how much ad revenue you generate for every $1 spent on Amazon PPC ads. It is calculated as Total Ad Revenue ÷ Total Ad Spend.
How do I convert ACoS to ROAS and vice versa?▼
ACoS and ROAS are inverse formulas: ROAS = 1 ÷ (ACoS ÷ 100). ACoS % = (1 ÷ ROAS) × 100. For example, a 25% ACoS equals a 4.0× ROAS, and a 20% ACoS equals a 5.0× ROAS.
What is a good ROAS on Amazon?▼
A good ROAS depends on your profit margin. If your pre-ad profit margin is 25%, a ROAS of 4.0× is break-even. Anything above 4.0× yields net profit.
What does 'Revenue per $1 Spent' mean?▼
Revenue per $1 spent is identical to your ROAS multiplier. A ROAS of 3.5× means that for every $1 you spend on PPC, you generate $3.50 in total ad sales.
Why should I track both ACoS and ROAS?▼
ACoS expresses ad efficiency as a percentage (useful for margin comparison), while ROAS expresses efficiency as a multiplier (useful for return on investment comparisons across ad channels).
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