Finance

Instant, private, and free

Online Marketing ROI Calculator.

Calculate marketing return on investment from revenue and campaign costs.

On-device calculationNo signup
01

Set your values

Results update as you type.

Marketing ROI: 200.00%

Marketing ROI

200.00%
Net return: $10,000.00

Net return

$10,000.00

FAQs

How does the online marketing roi calculator work?

Enter the requested values to receive a deterministic result. No live market, tax, or jurisdiction data is inferred.

Cite this calculator

Canonical URL: https://mathify.one/zh/finance/online-marketing-roi

Cite as: Mathify. (2026). Online Marketing ROI Calculator. https://mathify.one/zh/finance/online-marketing-roi

Use Cases

Evaluate campaign performance

Use this calculator to quickly assess whether a specific marketing campaign is profitable by comparing the revenue it generated to its total cost.

Example: A social media ad campaign with $2,000 in attributed revenue and $500 in spend yields a 300% ROI.

Compare marketing channels

Calculate ROI for different channels (e.g., email, PPC, social) to see which one delivers the best return on investment.

Example: Compare ROI of email marketing (revenue $1,000, spend $200) vs. PPC (revenue $800, spend $300).

Frequently Asked Questions

How is ROI calculated in this calculator?
ROI is calculated by subtracting marketing spend from attributed revenue, dividing by marketing spend, and then multiplying by 100 to get a percentage. The formula is: ((Attributed Revenue - Marketing Spend) / Marketing Spend) * 100.
What does a negative ROI mean?
A negative ROI means your marketing campaign cost more than the revenue it attributed. For example, if you spent $500 and earned $400, your ROI is -20%, indicating a loss on that spend.
What is 'attributed revenue'?
Attributed revenue is the sales or revenue directly credited to your marketing campaign. It should include only the revenue that can be traced back to the campaign's efforts, not overall company revenue.

Tips & Common Mistakes

Tips

  • Ensure you include all campaign costs in 'Marketing Spend'—ad spend, software fees, and labor—to get an accurate ROI.
  • Use consistent time periods for revenue and spend, such as monthly or quarterly, to avoid skewed results.
  • Track attributed revenue accurately using analytics tools or UTM parameters to avoid overestimating ROI.
  • Use ROI as a relative metric—compare it across campaigns or time periods rather than in isolation.

Common Mistakes to Avoid

  • Including revenue that isn't directly attributed to the campaign, which inflates ROI.
  • Forgetting to include all marketing costs, like agency fees or ad management tools, leading to an overstated ROI.
  • Using different time frames for revenue and spend, such as comparing monthly revenue to annual spend.

Last updated: August 13, 2026