Break-Even ROAS Explained With Real Numbers

Break-even ROAS is the most important number in dropshipping ad spend — and the most miscalculated. This article walks through the exact formula with a real product, then shows the four ways beginners get it wrong. By the end, you'll know exactly how to compute break-even ROAS for any product and why the number most calculators give you is too low.

The formula, in plain English

Break-even ROAS is the ROAS at which you make exactly $0 profit per order. Above it, you profit. Below it, you lose money.

Break-even ROAS = selling price ÷ (selling price − non-ad costs per unit)

Equivalently, it's 1 ÷ gross margin %. Same thing, different form.

"Non-ad costs per unit" = COGS + shipping + payment processing fees. It does NOT include ad spend (that's the whole point — we're solving for the ad spend threshold).

Worked example: $40 dropshipping product

Let's run the math on a realistic mid-ticket product:

Input	Value
Selling price	$40.00
Product cost (COGS)	$15.00
Shipping cost	$5.00
Stripe fee (2.9% + $0.30 on $40)	$1.46
Non-ad cost per unit	$21.46
Gross margin per unit	$18.54
Gross margin %	46.35%
Break-even ROAS	2.16×

The math: 40 ÷ 18.54 = 2.158, rounded to 2.16×. Or equivalently: 1 ÷ 0.4635 = 2.16×.

Use the Break-Even ROAS Calculator to run this with your own numbers.

What this number actually means

If your actual ROAS is exactly 2.16×, you make $0 per order. You're spending $18.54 in ads per $40 in revenue, leaving $0 profit. The business is a treadmill — running hard to stay in place.

If your actual ROAS is 3×, you're spending $13.33 in ads per order, leaving $5.21 profit per order. Profitable.

If your actual ROAS is 1.5×, you're spending $26.67 in ads per order, leaving -$8.13 profit per order. Losing money on every sale.

The four mistakes that make break-even ROAS wrong

Mistake 1: Ignoring shipping

The most common simplification: break-even ROAS = selling price ÷ (selling price − COGS). On our example: 40 ÷ (40 − 15) = 1.6×. That's 0.56× lower than the correct 2.16× — meaning a campaign that looks "above break-even" at 1.8× ROAS is actually losing $0.83 per order.

Always include shipping in non-ad costs.

Mistake 2: Ignoring payment processing fees

Less common but still frequent. On our example: 40 ÷ (40 − 15 − 5) = 2.0×. That's 0.16× lower than correct. The $0.16× gap on 100 orders/month is roughly $267 in ads you can't actually afford to spend.

Always include payment fees. Stripe is 2.9% + $0.30; PayPal is 2.99% + $0.49; Shopify Payments Basic is 2.9% + $0.30. Verified July 2026.

Mistake 3: Including ad cost in non-ad costs

This is the opposite error — including too much. If you put ad cost per unit in the denominator, you're solving for "what ROAS do I need to make exactly the ad cost I'm currently spending" — which is circular. Break-even ROAS exists to tell you the maximum you can afford to spend per order, not what you're currently spending.

Mistake 4: Treating break-even ROAS as the target

Break-even ROAS is the floor, not the target. If you run ads at break-even, you make $0. That's not a business. Aim for 20–30% above break-even before calling a campaign "profitable." Read our full article on profitable ROAS for the reasoning.

Comparison to other calculators

Here's how the same $40 product breaks down across popular break-even ROAS calculators:

Calculator	Inputs taken	Result	Issue
Dropship.io BEROAS	Price + COGS only	1.6×	Ignoring shipping and fees → understates by 0.56×
Basic margin-only	Price + COGS + shipping	2.0×	Ignoring payment fees → understates by 0.16×
Playblog (this site)	Price + COGS + shipping + fees	2.16×	Correct

The 0.56× gap between the simplest and the correct calculation is the difference between a campaign that's profitable at 1.8× ROAS and one that's losing money at 1.8×. Don't trust simplified calculators.

What changes break-even ROAS over time

Break-even ROAS isn't fixed. It changes when:

• COGS changes. Cheaper supplier → lower non-ad costs → lower break-even ROAS → easier to be profitable.
• Shipping changes. Negotiate better shipping rates → lower break-even ROAS.
• Payment processor changes. Switch from PayPal (2.99% + $0.49) to Shopify Payments (2.9% + $0.30) → marginal improvement.
• Price changes. Raise price (with constant costs) → higher gross margin % → lower break-even ROAS.

Re-run the Break-Even ROAS Calculator whenever any of these change.

Putting it into practice

1. Compute break-even ROAS for your product using the calculator.
2. Add 20–30% to get your "profitable ROAS" target.
3. Run ads until you have 30–50 orders of data.
4. Compare actual ROAS to your profitable target.
5. Re-check monthly — costs change, and break-even ROAS with them.

If you're below break-even, you have two options: raise price (use the Selling Price Calculator) or cut non-ad costs (cheaper supplier, lower shipping). Don't keep losing money hoping ROAS will improve — it usually doesn't.

Written by the Playblog Dropshipping Team. Last reviewed July 19, 2026 against current payment processing rates.