Free ROAS Calculator With Attributed Revenue, Ad Spend, Return on Ad Spend, Gross Margin, Variable Costs, Contribution Profit, Break-Even, and Target ROAS
Calculate ROAS from attributed revenue and ad spend. Compare gross-margin contribution, profit after variable costs, break-even ROAS and target scenarios.
Calculate, compare, visualize, and export
Local scenario history
Eight microlearning boxes
Separate cost, markup, and margin
Markup uses cost as its denominator; margin uses selling price or revenue. They are related but not interchangeable.
Inventory cost is a rate applied to value
Carrying cost combines capital, storage, service and risk assumptions. The selected average inventory value strongly affects the result.
Working capital measures short-term balance-sheet liquidity
Positive net working capital can still coexist with slow collections, excess stock or timing pressure, so ratios and components matter.
Project economics need complete costs
Labor, materials, subcontractors, overhead and contingency should be modeled consistently before a target margin is trusted.
Break-even ROAS depends on contribution margin
A business with lower gross margin or higher variable costs generally needs a higher ROAS to break even on advertising.
CAC should use matched periods and cohorts
Acquisition costs and newly acquired customers should belong to comparable time windows and attribution rules.
Marketing RPM means revenue per thousand
On this page RPM is Revenue Per Mille—revenue per 1,000 views or impressions—not mechanical revolutions per minute.
Scenario tools support planning, not certainty
Costs, demand, auction prices, returns, collection timing and real conversion behavior can differ from planning assumptions.
Knowledge challenge
Online checklist
Related ready pages
Frequently asked questions
Is this tool free?
Yes. No email, phone number, signup or payment is required.
Does the calculation run locally?
Yes. The interactive calculation is designed to run in your browser.
Can I load a worked example?
Yes. Every page includes a Load worked example control.
Can I export the result?
Yes. You can download the primary result and a CSV report.
Should I treat these outputs as accounting, tax or investment advice?
No. Verify accounting policy, contracts, tax treatment, attribution and business assumptions where they matter.
Method, scope, and limitations
These browser calculations are planning and learning aids. Verify accounting classifications, tax treatment, contracts, cost allocation, attribution rules, and current operating assumptions where they matter.