Break-Even Solver • Real Net Profit v2.6 • 100% Client-Side RAM
AD SPEND & ECOMMERCE ECONOMICS

Free ROAS Calculator (Break-Even & Ad Profit)

Determine true campaign profitability accounting for product COGS, payment merchant cuts, shipping expenses, and real break-even ad return thresholds.

$
Retail price paid by the customer per order.
$
Supplier manufacturing, raw materials, or wholesale cost.
$
Postage courier delivery, boxes, and 3PL fulfillment.
%
Expected returns, chargebacks, and damaged replacements.
Deduct merchant fee from contribution margin.
18%
Desired real profit margin retained after all ad spend.
Break-Even ROAS
1.67x
Zero Loss Threshold
Target ROAS
2.39x
For 18% Net Margin
Max Cost Per Customer (CAC)
$47.31
Top CPA Limit
Net Profit / Order
+$14.22
18.0% Net Margin
Contribution Margin (pre-ads): $47.31 (59.9%)
Payment Gateway Cut: -$2.59
Return & Refund Allowance: -$1.78
Target Blended MER: 1.75x
Customer Revenue Allocation Waterfall 100% Accounted
Net Profit (18.0%) Allowable Ads (41.9%) COGS (26.6%) Shipping (10.8%)
REAL PROFIT ATTRIBUTION

Spot True Net Profit, Stop Ad Spend Leaks

Ad dashboard metrics often hide net loss. Subtract COGS, gateway fees, packaging, and shipping to discover true break-even ad targets.

THE FALSE ROAS PARADOX 2.0X MAY BE LOSING
Order Selling Price: $79.00
- Wholesale COGS: -$21.00
- Courier & Fulfillment: -$8.50
- Gateway Cut (2.9% + $0.30): -$2.59
Contribution Margin: $47.31 (59.9%)
BREAK-EVEN REALITY

Why High Ad Dashboard ROAS Can Still Lose Money

E-commerce operators often scale unprofitable campaigns because their dashboard shows 2.5x ROAS. If product margins and shipping eat 60% of revenue, your break-even ROAS threshold is actually 2.5x — meaning zero dollars in real corporate profit.

Exact mathematical break-even ROAS formula factoring all unit cost deductions.
Simultaneous calculation of target ROAS to hit your desired 20% or 30% net margin.
Real-time revenue waterfall bar visualizing exactly where every customer dollar goes.
REAL AD PROFIT BREAKDOWN

Subtract Product Cost, Packaging, Shipping & Fees

Generic ROAS calculators only compare sales to ad spend. Our complete profit calculator accounts for product costs, courier postage, warehouse fees, and payment processor fees.

Includes wholesale supplier costs, custom packaging, and factory production fees.
Incorporates 3PL warehouse fees, boxes, and regional courier delivery postage.
Deducts credit card interchange and merchant gateway percentages automatically.
TRUE PROFIT BREAKDOWN 100% AUDITED
Product Wholesale (COGS) 26.6%
Courier Shipping & 3PL 10.8%
Payment Gateway Fee 3.3%
Contribution Margin 59.9% ($47.31)
CAMPAIGN REPORT SCHEDULE EXCEL READY
AOV Price: $79.00
Break-Even ROAS: 1.67x
Target ROAS (18% margin): 2.39x
Net Profit / Order: +$14.22
AUDIT-READY EXPORT

Download Clean Profit Summary Spreadsheet

Need to show ad numbers to business partners, clients, or investors? Export a detailed profit report spreadsheet in a single click with complete margin numbers.

Direct CSV download with break-even threshold and net dollar profit lines.
Printable campaign audit view formatted cleanly for PDF archiving.
Transfer calculated client ad management fees directly to the Invoice Generator.
100% LOCAL PRIVACY

100% Private on Your Device — No Ad Data Tracked

Your ad spend, supplier costs, and proprietary profit margins are strictly confidential corporate data. Our calculator runs 100% locally in browser memory with zero tracking cookies or cloud transmission.

Zero server uploads, zero database storage, and zero marketing tracking pixels.
Works 100% offline without any internet or Wi-Fi connection.
Instant RAM wipe upon tab closure for maximum enterprise privacy.
AUDIT MEMORY SAFETY 100% LOCAL
1. Campaign Metrics Entered Local DOM
2. Break-Even Solved Client JavaScript
3. Cloud Transmissions 0 Bytes (Zero Tracking)
3-Step Quick Guide

How to Use ROAS & CAC Calculator

Fast, intuitive, and 100% client-side. No signups, no watermarks, no server delays.

01

Ad Spend & Revenue

Enter your total advertising budget and gross revenue generated.

02

Product Costs (COGS)

Add cost of goods sold, shipping, and payment gateway fees for true profit.

03

View Metrics

See ROAS multiplier, Break-even ROAS, CAC, and net profit margin instantly.

Zero-Server Privacy Guarantee

Your Files Never Touch Our Servers

Client ad spend, revenue, and profit margins are calculated locally with zero cloud reporting.

100% Client-Side 0 Logs Recorded
Frequently Asked Questions

Common Questions About ROAS & CAC Calculator

Clear answers about performance, browser compatibility, and our zero-data retention model.

What is the difference between ROAS and ROI?

ROAS (Return on Ad Spend) measures gross revenue earned per dollar spent on advertising (Revenue / Ad Spend). ROI (Return on Investment) accounts for all costs including ad spend, product cost (COGS), shipping, and payment fees to measure net profit.

How is Break-Even ROAS calculated?

Break-Even ROAS = 1 / Profit Margin %. For example, if your product has a 50% profit margin, your Break-Even ROAS is 1 / 0.5 = 2.0x. Any ROAS above 2.0x represents pure profit.

What is Customer Acquisition Cost (CAC)?

CAC is total marketing cost divided by total new customers acquired. Tracking CAC against Customer Lifetime Value (LTV) ensures sustainable scaling.

Can I export an audit report for my marketing clients?

Yes! ZeroTool lets you download a clean CSV audit or print summary of your ROAS and margin breakdown.

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