Marketing

How to Calculate Marketing ROI (With Real Campaign Examples)

Marketing ROI is the single most-cited number in any marketing review — and one of the most miscalculated. Surveys from Gartner and the CMO Council consistently find that fewer than 30% of US marketing teams calculate ROI in a way their CFO would accept. The math itself is simple. The discipline is in deciding what counts as “cost” and what counts as “return.”

The Marketing ROI Formula

ROI (%) = ((Revenue from Campaign − Cost of Campaign) ÷ Cost of Campaign) × 100

If a paid search campaign generates $48,000 in attributable revenue and costs $12,000 (ad spend + agency + tooling), ROI = (48,000 − 12,000) ÷ 12,000 × 100 = 300%.

You can run any campaign through our ROI Calculator in seconds.

Use ROAS for Ad Spend, ROI for Programs

ROAS (Return on Ad Spend) divides revenue by ad cost only. ROI divides profit by total cost. Use ROAS when you’re optimizing a single ad set; use ROI when you’re defending a quarterly budget.

The Three Mistakes That Inflate ROI

Ignoring fully-loaded costs. Add salaries, contractor fees, software, creative production, and agency retainers — not just media spend.
Counting top-line revenue instead of gross profit. A 300% ROI on a 20% margin product is a 60% return — barely above your cost of capital.
Last-click attribution. Last-click overcredits paid search and undercredits brand, content, and email. Move to a data-driven or position-based model.

2026 US Marketing ROI Benchmarks

Email marketing: 3,500–4,200% (highest channel, low cost base)
SEO / organic content: 600–1,200% over a 12-month window
Paid search (Google): 200–400% for B2C, 150–300% for B2B
Paid social (Meta, TikTok): 150–280% for DTC brands
Display & programmatic: 80–180%

Pair ROI With CAC and LTV

ROI alone doesn’t tell you whether a campaign is sustainable. A high-ROI campaign that only attracts one-time buyers will lose to a slightly lower-ROI campaign that brings in repeat customers. Always look at the trio: ROI, CAC, and LTV. The healthiest US SaaS and DTC companies maintain LTV:CAC ratios above 3:1.

Worked Example

A US Shopify brand spends $80,000 in Q1: $50k Meta ads, $15k creative, $10k team time, $5k tooling. Revenue attributed (data-driven model): $260,000. Gross margin: 55%.

Gross profit: 260,000 × 0.55 = $143,000
ROI: (143,000 − 80,000) ÷ 80,000 × 100 = 78.75%

The “300% ROAS” headline becomes a much more honest 79% margin-adjusted ROI — still strong, but a number finance will trust.

FAQs

Is a 100% marketing ROI good? For paid acquisition, yes — you’ve doubled your money. For email or SEO, it’s underperforming the benchmark.

How long should I measure ROI over? Match the buying cycle. SaaS and B2B: 12–18 months. DTC: 30–90 days.

Should I include brand spend? Yes, but split it out. Brand ROI compounds over years and shouldn’t be judged on a single quarter.