ROAS Calculator | CalcPilot

What this calculator does

Most business & marketing tools bury the answer under ads and jargon. The roas calculator shows the number first, the breakdown next, and the assumptions in plain language.

Return on Ad Spend measures revenue per dollar of ad spend.

Purpose-built for a specific decision — not a generic template.

Result updates live as you type — no "Calculate" button needed.

Formula and worked example are shown in plain language below.

Runs entirely in your browser — no data leaves your device.

How to use the ROAS Calculator

Enter your values in the fields on the left.
Results update automatically.
Use the action buttons to copy, share or print.

The formula

ROAS = Revenue / Ad Spend

Worked example

$25k / $5k = 5.0x ROAS.

Common mistakes

Confusing ROAS with ROI
Not using LTV for subscriptions
Attribution issues

When to use it

Use for ad campaign evaluation and budgeting.

Pro tips for the ROAS Calculator

Change one input at a time to see which lever actually moves the answer the most.
Round-trip check: reverse the inputs to confirm the formula matches what you'd compute by hand.
Bookmark this page: the URL and inputs are all you need to reproduce the exact result later.

Frequently asked questions

›Good ROAS?

Depends on margins — 3x+ for most businesses.

›ROAS vs ROI?

ROAS is revenue; ROI is profit.

›Break-even ROAS?

1 / gross margin.

›iOS 14 impact?

Reporting less accurate — use MER too.

›Marketing Efficiency Ratio?

Total revenue / total marketing spend.

›Can I embed the ROAS Calculator on my site?

Embedding isn't public yet, but you can link directly to this page — the URL is stable and shareable.

›Where does the formula come from?

The formula shown in the "How it works" section is the same one you'll find in standard business & marketing references — no proprietary tweaks or hidden weightings.

Embed this calculator

Drop the ROAS Calculator into your own site or blog post. Free to use — a small “Powered by CalcPilot” link is appreciated.

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