ROI Calculator
Calculate return on investment (ROI) as a percentage based on cost and return for campaigns, projects, or purchases.
Cost & return
What you spent on the project, campaign, tool, or investment (fees and taxes included if you like).
The total value you earned back (for example revenue from a campaign or final value of an investment).
This ROI calculator is a simple snapshot and doesn't adjust for time, compounding, or risk. For more advanced analysis, use additional financial tools or professional advice.
Results
ROI = (Return − Cost) ÷ Cost. Positive ROI means you made more than you spent; negative ROI means the project or investment lost money.
Related Tools
See how your savings grow over time with compound interest and optional monthly contributions.
Calculate profit, margin percentage, and markup for your products or services and test different price points.
Rough tax estimate for freelancers and self‑employed people based on annual profit and simple deductions. Not tax advice.
Compare rough effective tax rates and estimated net income for freelancers and individuals across multiple countries.
Frequently Asked Questions
How is ROI calculated?
ROI is calculated as (Return − Cost) ÷ Cost, expressed as a percentage. For example, spending $100 and earning $140 gives a 40% ROI.
Can I use this for both business and personal investments?
Yes. It works for marketing campaigns, projects, tools, or simple personal investments. It is a basic planning aid, not financial advice.
How to Use This ROI Calculator
ROI (Return on Investment) helps you understand how much you earned relative to what you spent. It's a quick way to compare campaigns, projects, or purchases that have different costs and returns.
This calculator is intentionally simple: it shows net gain or loss and ROI percentage from just two numbers — cost and return. It works well for marketing campaigns, freelance projects, software tools, or straightforward investments.
Example: Marketing Campaign ROI
If you spend $1,000 on ads and the campaign generates $1,600 in tracked revenue, your net gain is $600 and your ROI is 60% (600 ÷ 1,000). You can then compare that to other campaigns or channels.
Limitations to Keep in Mind
ROI is great for
- • Comparing different projects or campaigns
- • Making quick, high‑level decisions
- • Communicating results to non‑finance stakeholders
But it doesn't show
- • How long it took to get the return
- • Risk or volatility over time
- • The exact impact of taxes, fees, or inflation
Treat this ROI calculator as a quick planning and communication aid, not as detailed financial or investment advice. For complex decisions, combine it with more in‑depth analysis or professional guidance.