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Free Marketing ROI Calculator

A free marketing ROI calculator that measures return on investment across multiple channels simultaneously - Google Ads, Meta, email, SEO, and more. Enter your spend and revenue per channel, see per-channel and blended ROI instantly, compare against industry benchmarks, and download a client-ready PDF report. No account required.

Marketing performance

Why marketing ROI measurement matters

Most agencies track vanity metrics - impressions, clicks, follower counts. ROI is the only metric that connects marketing activity to business outcomes. Without it, you're flying blind.

How to calculate marketing ROI across channels

This calculator handles multi-channel ROI analysis in under two minutes. Here's how to get the most out of it.

1. 1

   Add your marketing channels

   The calculator starts with three pre-filled channels (Google Ads, Meta Ads, Email). Rename them to match your actual campaigns, or add new ones with the '+ Add channel' button.

2. 2

   Enter spend and revenue for each channel

   For each channel, enter the total spend over your measurement period and the total revenue attributed to that channel. Use the same time period for all channels - monthly is most common.

3. 3

   Review per-channel ROI and the blended total

   ROI calculates automatically as you type. The summary cards show total spend, total revenue, blended ROI across all channels, and your best-performing channel. The bar chart visualises ROI side-by-side.

4. 4

   Compare against industry benchmarks

   The benchmark table shows how each channel performs against industry average ROI figures. Green means you're outperforming the average; red means you're underperforming. Use this to identify channels worth optimising or cutting.

5. 5

   Model budget scenarios

   Use the scenario builder sliders to model what would happen if you shifted budget between channels. The projected blended ROI updates in real time so you can see the estimated impact of each allocation before making changes.

Frequently asked questions

What is marketing ROI?

Marketing ROI (Return on Investment) measures how much revenue you generate for every dollar spent on marketing. It's calculated as: (Revenue − Spend) ÷ Spend × 100. A 200% ROI means you earned $3 back for every $1 spent - $1 back plus $2 profit.

What is a good marketing ROI?

A common benchmark is 5:1 (a 400% ROI) - meaning $5 returned for every $1 spent. A 2:1 ratio (100% ROI) is often considered the break-even for many campaigns once overhead is factored in. Email marketing consistently outperforms with an average ROI of 4,200%. Google Ads averages around 200%. The right benchmark depends on your channel, industry, and margin.

What is blended ROI?

Blended ROI combines all your marketing channels into a single number. It's calculated using total revenue across all channels divided by total marketing spend. Blended ROI gives you a portfolio-level view of marketing performance - useful for reporting to clients or stakeholders who want a single summary metric.

How do I calculate ROI for a specific channel?

Channel ROI = (Channel Revenue − Channel Spend) ÷ Channel Spend × 100. Example: if you spent $2,000 on Google Ads and generated $6,000 in revenue, your ROI is ($6,000 − $2,000) ÷ $2,000 × 100 = 200%. This calculator does this automatically for each channel you add.

Can ROI be negative?

Yes. Negative ROI means the channel cost more than it generated in tracked revenue. This can happen with brand awareness campaigns, new channel tests, or campaigns with long attribution windows. A negative ROI doesn't always mean the channel is worthless - but it does mean you're losing money on tracked conversions, which warrants investigation.

What's the difference between ROI and ROAS?

ROAS (Return on Ad Spend) = Revenue ÷ Spend (a ratio, not a percentage). ROI = (Revenue − Spend) ÷ Spend × 100 (a percentage that accounts for the cost). A ROAS of 3:1 is the same as a 200% ROI. ROI is more useful for agency reporting because it factors in the cost of the spend, not just the multiplier.

How does the scenario builder work?

The scenario builder lets you model what your blended ROI would look like if you redistributed your total budget across channels differently. Each slider represents what percentage of your total spend would go to that channel. The projected ROI applies each channel's current ROI rate to its new hypothetical spend, giving you an estimated blended outcome.

Where do the industry benchmarks come from?

The benchmarks are drawn from publicly cited industry averages: email marketing from the DMA National Client Email Report (average 4,200% ROI), Google Ads from Google's own Economic Impact Report (average 200%), SEO from various industry studies (average 550%), and LinkedIn/Meta from platform and third-party performance reports. These are averages across industries - your results will vary.

Does this calculator store my data?

No. All calculations happen in your browser. Nothing is sent to a server, nothing is stored, and no account is required. When you close the tab, the data is gone. The PDF is generated entirely client-side.

Can I use this for client reporting?

Yes. Click 'Download PDF report' to generate a professional client-ready PDF with a channel breakdown table, blended ROI summary, and industry benchmark comparison. You can also use 'Copy summary' to paste a plain-text version into an email, Slack message, or deck.

Why does email have such a high industry ROI benchmark?

Email marketing's 4,200% average ROI is well-documented but somewhat misleading in isolation. It reflects near-zero media cost (you're not paying per send in the same way you pay per click) and the high intent of an opted-in subscriber list. For agencies, email ROI is typically calculated on list management and content creation costs - not media spend. Compare email ROI against email-specific costs for an accurate picture.