Break-even ROAS, max CPA, test budget, bundle pricing, how far you can scale. Type in the numbers you already have, get the answer, and make the call on math instead of a feeling.
Example numbers. Landed cost = product + shipping + fees per order.
The problem
Not because operators are careless. Because the math is annoying to do every time, so it gets skipped.
Decision by gut
It feels profitable. Meta says it's a winner. You leave it running and add a bit of budget.
Decision by spreadsheet
Three tabs, a few hard-coded cells, a formula copied from a video. It works until the day one cell points to the wrong place.
Decision by half-remembered formula
That's your markup, not your break-even. Close enough formulas lead to close enough decisions, and ads punish close enough.
The tool is never the expensive part. The test you shouldn't have started and the budget raise that ate your profit are.
The fix
Each one answers one question. You type in the numbers you already have, and it gives you the number the decision depends on.
Plan
Test
Run
Scale
No spreadsheet to maintain, no formula to remember. The math is the same every time, so you can trust it every time.
NEWScale Ceiling
More budget always buys traffic at a worse price. The question isn't whether ROAS drops when you scale. It's how far it can drop before scaling stops paying.
Enter your break-even and today's ROAS, then pick how much you want to scale.
Your blended ROAS for the whole account can fall this low at 2× the budget and you still make the same money you make today.
That is 0.25 of room below where you are now.
Break-even 1.35, running at 1.85 today. Here is the lowest ROAS you can accept at each budget level and still take home the same profit.
Today
€100/day at 1.85
€37 profit/day
At 2× budget
€200/day at 1.60
€37 profit/day
Included in Tools, €19/mo. Checkout opens right after you create your account.
Everything in Tools
Three are free forever with a free account, no card needed, and Q4 Budget is free until 4 Dec. Tools unlocks all twelve, plus every calculator we release after this, at no extra charge.
Enter a selling price and product cost. See if the margin can carry paid ads at all.
Try it free → FreeHow much budget you need to test a new campaign or product properly.
Try it free → FreeSet a monthly income target and see what revenue each shop needs per day. Works across several shops.
Try it free → Free until 4 DecSee how much cash you need to carry your November goal through Black Friday, or what goal your cash can carry.
Try it free →Before you raise budget, see how far ROAS can fall and still make the same money. From a 20% bump up to 5×.
"How low can ROAS go if I double the budget?"Set the margin you want to keep and get the ROAS your campaigns need to hit it.
"What ROAS gives me a 20% margin?"See the ROAS your product needs to hit your target margin, and what every ROAS level leaves you per sale.
"Where does this start making money?"Optimal bundle pricing and margins across 1×, 2× and 3× offers.
"What should the 3-pack cost?"Work backwards from a target margin to the most you can pay for one sale.
"What's my max CPA?"What conversion rate a sale price or price increase needs to earn the same, then check the real result afterwards.
"Does 20% off actually pay?"Estimate profit without exact COGS. Enter any two of sales, ad spend and ROAS.
"Roughly, am I making money?"Log supplier quotes, compare bundle variants and markets, and see B/E ROAS, B/E CPA and target metrics for each.
"Which supplier and market actually wins?"Potential winners
Not in a doc, not on post-its. Add each product you find with its price and landed cost, and the list shows what it can carry before you spend a euro on ads.
Free accounts: one list of up to 10 products, and view-only on lists shared with them. Every paid plan: no limit.
| Product | Price · cost | Break-even ROAS ↑ | Profit per order | Price / cost | Ads running |
|---|---|---|---|---|---|
| Product A | €40 · €10.40 | 1.35 | €29.60 | 3.8× | 14up 40% in 30 d |
| Product B | €50 · €15 | 1.43 | €35.00 | 3.3× | 22 |
| Product C | €30 · €12 | 1.67 | €18.00 | 2.5×under 3x | 9down 25% in 30 d |
Example numbers. Cost = landed cost per order. Profit per order is before ads.
The math behind the tools
You don't need to memorise these. But once you know them, you'll spot a bad number before it costs you anything.
RULE 1
Not your AOV, not your niche, not what someone in a group says is "a good ROAS". Only how much of each sale you keep before ads.
RULE 2
A bigger order means you can pay more for each sale, in euros. The ratio you need to hit stays exactly the same.
RULE 3
The bundle discount lowers your margin, so the bar goes up. But the money you keep per order goes up more. Judge bundles on profit per order, not on ROAS.
RULE 4
At 4×, the product is a quarter of the price and there's room left for shipping, fees and ads. Go lower and your break-even ROAS climbs fast.
The calculators do the math. The rules tell you when a number looks wrong.
Who it's for
Why I built these
I run my own stores and I teach dropshipping at EM Academy. Every week the same questions come up, from me and from the people I coach: can this product carry ads, how much should I test with, what should the bundle cost, can I scale this without killing the profit?
The answers are always math. Simple math, but easy to get slightly wrong when you're doing it in your head at midnight. So I turned each question into a calculator, built on the same rules I teach, and I use them myself before a test or a budget change.
Free to watch
Calculator walkthroughs and how-tos, plus the thinking behind the numbers. Watch before you buy, or anytime you want a refresher.
Pricing
Start free with three calculators, no card needed. Unlock all twelve when you want them. Cancel anytime.
Free
For checking a product before you spend on it.
€0
Tools
For operators who want the answer to every test and scale question.
€19/month
Create your account and checkout opens when you sign in. Already have one? Log in and upgrade from the Tools tab.
Next step up: the dashboard
Your real profit per day and per store, after ad spend, product costs and fees. Every calculator is included.
Extra stores €15/mo each.
All prices excl. VAT.
FAQ
All 12 profit calculators, plus every new calculator as it's released, and AI feedback on your results (50 a month). Tools is the calculator plan, for €19 a month or €149 a year. The profit dashboard, stores and imports are on Starter and Growth.
A list for the products you find before you test them. Add the price and landed cost and it shows the break-even ROAS, the profit per order before ads and the price as a multiple of cost, and you can sort by any of them. From a row you can open the Breakeven ROAS or Bundle calculator, or start a supplier quote in the Quotation Tracker. You can share a list with a partner or a student. Free accounts get one list of up to 10 products; every paid plan has no limit.
Yes. A free account gives you Breakeven ROAS, Test Budget and Income Goal forever, and Q4 Budget until 4 Dec. Creating one takes about 30 seconds and needs no card: create your free account.
Click Get Tools and create your account. Checkout opens as soon as you sign in, and it takes about a minute. Already have a free account? Log in and upgrade from the Tools tab.
On every paid plan, each calculator can explain your result with AI: what your numbers mean together and what to do next (50, 100 or 250 times a month, depending on your plan; Tools gets 50). The app calculates every number; the AI only explains them.
You can. But a spreadsheet only answers the question you built it for, and it never tells you when a cell is wrong. These calculators are built for the questions dropshippers actually ask, like how far ROAS can drop when you double the budget, and the math is the same every time.
No. Most calculators need two or three numbers you already know, like your selling price and product cost. If you're just starting, begin with the three free ones and the walkthroughs on our YouTube channel.
Tools is the calculator plan. Starter and Growth are the profit dashboard: you see your real profit per day and per store, after ad spend, product costs and fees, and every calculator is included. Starter is €39 a month for 1 store, with a 7-day free trial. Growth is €99 a month for 3 stores and adds Shopify, Meta and Google Ads imports and AI analysis of your numbers. See the dashboard.
Yes. When your store is running, upgrade to Starter or Growth from your account. Your calculators stay included.
Yes, 30% off for as long as you're a member. Course students get 50% off for 12 months. Connect your Discord inside the app and the discount is applied.
Yes. Cancel from your account settings whenever you want and keep access until the end of the period you paid for. Prices are excl. VAT.
Your next test
Start free with three calculators. Unlock all twelve for €19 a month when you're ready.
No card needed for the free plan. Cancel Tools anytime.