Interest Rate Calculator for Math

Investment ROI Calculator

Calculate your total return on investment and annualized growth rate.

Calculation Results

Total ROI

0%

Total Profit/Loss

$0

Annualized ROI (CAGR)

0%

Investment Multiple

0x

Understanding Your Return on Investment (ROI)

Return on Investment (ROI) is a critical financial metric used to evaluate the efficiency or profitability of an investment. Whether you are tracking stock market performance, real estate appreciation, or business capital expenditures, knowing your ROI helps you make informed financial decisions.

How the ROI Formula Works

The basic ROI calculation is straightforward. It subtracts the cost of the investment from the final value to determine net profit, then divides that profit by the original cost.

ROI = [(Current Value – Initial Investment) / Initial Investment] x 100

Total ROI vs. Annualized ROI

While total ROI tells you how much you made in total, Annualized ROI (or Compound Annual Growth Rate – CAGR) is often more important. It shows how much the investment grew each year on average. This is vital for comparing a 50% return over 10 years versus a 50% return over 2 years.

Real-World ROI Examples

• Stock Market: If you buy shares for $5,000 and sell them for $7,500 after 3 years, your total ROI is 50%, but your annualized ROI is approximately 14.47%.
• Real Estate: An investment property purchased for $200,000 that sells for $250,000 has a 25% ROI (excluding taxes and maintenance costs).
• Business Marketing: Spending $1,000 on an ad campaign that generates $3,000 in net profit results in a 200% ROI.

Key Terms to Know

Initial Investment: The total amount of money you put into the project or asset at the start.

Final Value: The value of the asset at the end of the period, or its current market value.

Investment Multiple: How many times you "doubled" your money. A multiple of 2.0x means you doubled your original capital.

function calculateROI() { var initial = parseFloat(document.getElementById('initialInvestment').value); var final = parseFloat(document.getElementById('finalValue').value); var years = parseFloat(document.getElementById('investmentYears').value); var resultsDiv = document.getElementById('resultsArea'); var totalROIPercDisp = document.getElementById('totalROIPerc'); var totalProfitDisp = document.getElementById('totalProfitValue'); var annualROIPercDisp = document.getElementById('annualizedROIPerc'); var multipleDisp = document.getElementById('investmentMultiple'); if (isNaN(initial) || isNaN(final) || initial 0) { // Formula: ((Final / Initial) ^ (1 / years) – 1) * 100 var annualizedROI = (Math.pow((final / initial), (1 / years)) – 1) * 100; annualROIPercDisp.innerText = annualizedROI.toFixed(2) + "%"; } else { annualROIPercDisp.innerText = "N/A"; } // Styling adjustments for losses if (profit < 0) { totalROIPercDisp.style.color = "#e74c3c"; totalProfitDisp.style.color = "#e74c3c"; } else { totalROIPercDisp.style.color = "#27ae60"; totalProfitDisp.style.color = "#27ae60"; } resultsDiv.scrollIntoView({ behavior: 'smooth', block: 'nearest' }); }