ROI Calculator

Your data never leaves your browser

Calculate return on investment, net profit, monthly ROI, and payback period for any project.

Brie — Bug Reporting Tool

Found a bug while testing?

Brie captures screenshots, console logs, network data, and session replays in one click — so developers get the full context without the back-and-forth.

Install Brie — It's FreeLearn more →

About ROI Calculator

Enter your total investment, the revenue gained, and the time period in months to calculate ROI percentage, net profit, monthly ROI, and the payback period. Useful for customer success managers building business cases, evaluating tool spend, or reporting the value delivered to customers.

How to use

  1. Enter the total investment amount in the "Investment" option.
  2. Enter the total revenue or value gained in the "Revenue Gained" option.
  3. Set the time period in months and review your ROI, net profit, and payback period in the output.

More Customer Success Tools

Churn Rate Calculator

Calculate customer churn rate, retention rate, and projected annual churn for any period.

NPS Calculator

Calculate your Net Promoter Score from raw survey responses (0–10) instantly.

Customer Health Score Calculator

Calculate a weighted customer health score and risk level from usage, engagement, support, NPS, and renewal data.

Frequently Asked Questions

FAQs about ROI Calculator

How is ROI calculated?

ROI (%) = ((Revenue Gained − Investment) ÷ Investment) × 100. A positive ROI means the investment returned more than it cost.

What is payback period?

Payback period is the number of months required to recoup the original investment based on the monthly revenue rate. It is calculated as Investment ÷ (Revenue Gained ÷ Time Period).

What is monthly ROI?

Monthly ROI is the total ROI divided by the number of months, giving an average monthly return percentage.

What is a good ROI for a SaaS tool?

A commonly cited benchmark is 3× return (200% ROI) within 12 months. However, what counts as "good" depends heavily on industry, risk level, and time horizon.

Is my data safe?

All calculations run entirely in your browser. No data is sent to any server.