Free · No login · Calculated in your browser
How can a competitor afford a $5 click
and still make money?
Because they don't bid on the first sale. They bid on the customer's lifetime. Enter your product and see the real break-even ACOS your repeat customers let you afford.
Your contribution after Amazon fees & COGS, before ad spend.
🔒 Calculated in your browser. Nothing is uploaded.
Trusted by 1,000+ top Amazon brands
Tell us your product
Category, price and your margin before advertising.
We project the lifetime value
How much a customer is worth at 1, 3, 6 and 12 months, by category.
See your break-even ACOS
The most you can spend on ads and still profit, plus the financial proof.
What you'll get
Everything you need to outbid your competition
Your break-even ACOS at 1, 3, 6 and 12 months, plus a live model to stress-test it with your own ad costs.
Stop advertising on first-order math
Most sellers set their ACOS target on a single sale. The brands beating you set it on the whole customer. Here's what you'll see:
- Your break-even ACOS at 1, 3, 6 and 12 months of customer value
- Why a 12-month break-even ACOS can top 100% and still profit
- The exact financial model behind it, on your own price and margin
- Calculated in your browser, so nothing is ever uploaded
Break-even ACOS by customer lifetime. The longer the horizon, the more you can spend and still profit.
And a live financial model
Toggle your cost-per-click and conversion rate, and watch your real ACOS, sales, profit and margin rebuild across 1,000 customers, on your own price and margin.
- Drag the cost-per-click and conversion-rate sliders to model your own ads
- See the ACOS your repeat customers actually let you afford
- Sales, profit, margin and ACOS at 1, 3, 6 and 12 months
Interactive financial model
| Horizon | Sales | Profit | ACOS |
|---|---|---|---|
| 1 mo | $43,989 | −$7,418 | 67% |
| 6 mo | $67,983 | +$4,571 | 43% |
| 12 mo | $87,978 | +$14,577 | 33% |
Toggle the sliders and every number rebuilds across 1,000 customers.
Trusted by Amazon's best brands
“The holy grail of analytics for CPG brands”
Ivan Tsvilik · CEO at True Sea Moss Questions, answered
Is it really free?
Yes. Enter your product, get your break-even ACOS, no credit card and no login required.
How is my break-even ACOS calculated?
Break-even ACOS = your margin before ads × how much more a customer is worth over time (their lifetime value multiple). The longer the horizon, the more repeat purchases count, and the higher the ACOS you can afford.
Can a break-even ACOS really be over 100%?
Yes. If customers reorder, their lifetime contribution can exceed the first sale. So you can spend more than the first order is worth to acquire them and still profit across the year. That is exactly how a competitor "affords" a higher CPC than you.
Where do the lifetime-value numbers come from?
They are directional benchmarks by category, not your account data. For your real, account-level lifetime value and break-even targets, connect your account to My Real Profit.
Is my data safe?
Completely. Everything is calculated inside your browser. Nothing is uploaded, and there is no login.
See the ACOS your repeat customers let you afford
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Calculate my break-even ACOS