무료 온라인 ROI 계산기 | Fairmont AI

투자 수익률을 온라인에서 무료로 계산하세요. 비용과 수익을 입력하면 ROI를 즉시 확인.

Our free ROI Calculator helps you instantly measure the return on any investment. Whether you

How to Calculate ROI

  1. Enter Your Investment Amount: Input the total amount you invested or spent on the project, campaign, or asset.
  2. Enter Your Return Amount: Input the total amount you received back (revenue, sale price, total return). This should include your original investment.
  3. Get Your ROI: Click Calculate ROI to see your ROI percentage, net profit, and optionally your annualized ROI if you entered a time period.

Frequently Asked Questions

What is ROI?

ROI (Return on Investment) is a performance metric used to evaluate the efficiency of an investment. It's expressed as a percentage of the net profit relative to the cost.

What is the ROI formula?

ROI = (Net Profit ÷ Investment Cost) × 100. Net Profit = Return Amount − Investment Amount.

What is a good ROI?

It depends on the context. A 7-10% annual ROI is generally considered good for stock market investments. For marketing, it varies by industry but 5:1 (500% ROI) is often cited as a target.

Can ROI be negative?

Yes. A negative ROI means you lost money on the investment. For example, investing $10,000 and getting back $8,000 gives a -20% ROI.

What is annualized ROI?

Annualized ROI accounts for the time dimension by converting the total ROI into an equivalent annual rate. It allows fair comparison of investments with different durations.

Is ROI the same as profit margin?

No. Profit margin measures profit as a percentage of revenue. ROI measures profit as a percentage of investment cost. They answer different questions.

Does this calculator handle negative ROI?

Yes. If your return is less than your investment, the calculator shows a negative ROI and net loss in red.

Can I use this for marketing campaign ROI?

Absolutely. Enter your ad spend as investment and total revenue generated as return. The calculator works for any scenario.