ROAS Calculator

Calculate return on ad spend and campaign profitability.

Return on Ad Spend

Presets:

Campaign Metrics

Instant calculationTop-line ad yield

Ad Efficiency

Return on Ad Spend

4.00x

Every $1.00 of advertising generates $4.00 in attributed sales revenue.

ROAS percentage400.00%

Gross revenue after ad spend$9,000.00

Advertising cost of sales (ACoS)25.00%

Formulas & Logic

Transparent mathematical formulas behind this calculation engine.

Return on Ad Spend (Multiple)

ROAS Multiple = Attributed Ad Revenue ÷ Total Ad Spend

Indicates the gross dollars of revenue generated per single dollar spent on media.

ROAS Percentage (%)

ROAS (%) = (Attributed Ad Revenue ÷ Total Ad Spend) × 100

Percentage representation of advertising revenue efficiency.

Advertising Cost of Sales (ACoS %)

ACoS (%) = (Total Ad Spend ÷ Attributed Ad Revenue) × 100

Measures what percentage of generated revenue was spent on media buying.

Worked Example

Paid Ads Campaign ($15k Revenue / $3k Ad Spend)

An ecommerce brand spends $3,000.00 across search and social media campaigns, generating $15,000.00 in directly attributed customer sales.

Given

Attributed Revenue: $15,000.00
Total Ad Spend: $3,000.00

Calculated

ROAS Multiple: 5.00x
ROAS Percentage: 500.00%
ACoS: 20.00%
Net Return: $12,000.00

Calculation

ROAS Multiple = $15,000.00 ÷ $3,000.00 = 5.00x
ROAS Percentage = 5.00 × 100 = 500.00%
Net Revenue after Ads = $15,000.00 - $3,000.00 = $12,000.00
ACoS = ($3,000.00 ÷ $15,000.00) × 100 = 20.00%

Takeaway: Every $1.00 invested into media buying produced $5.00 in top-line revenue, leaving a 20.00% advertising cost of sales ratio.

Methodology & Assumptions

Underlying definitions and operational accounting principles.

Attribution Fidelity: Assumes analytics tracking accurately ties purchases to the measured ad campaigns.
Top-Line Measure: ROAS reflects top-line sales turnover, not net profit after product manufacturing and shipping costs.

Frequently Asked Questions

Practical answers regarding margins, markups, and pricing strategy.

How is ROAS different from ROI?

ROAS measures gross revenue generated per dollar of ad spend (a top-line marketing efficiency metric). ROI measures net profit relative to total investment costs after deducting product manufacturing, shipping, operational, and media expenses.

What is a good ROAS?

A 4.00x–5.00x ROAS ($4–$5 revenue per $1 spent) is a common benchmark for ecommerce. High-margin SaaS businesses can often operate profitably at 2.0x–3.0x, while low-margin retail may require 5.0x+.

What is break-even ROAS?

Break-even ROAS equals 1 ÷ Gross Margin. If your gross margin is 50%, break-even ROAS is 1 ÷ 0.50 = 2.00x. Any ROAS above 2.00x delivers net profit after direct product costs.