CALCIDA

ROI Calculator: Return on Investment

Written by Calcida Team
Reviewed by Financial Review Process
Last updated: April 2026

Calculations are rooted in standard financial formulas and are provided as educational estimates only. They do not constitute professional financial advice. Results may vary based on actual interest rates and fees. You should verify all numbers with a certified financial professional prior to making significant financial commitments. Read our editorial commitment

Calculate the Return on Investment (ROI) for any project or purchase. See your total profit and percentage gain.

Built specifically for Anyone comparing the profitability of an investment or project., this engine analyzes Initial cost, Final value to output roi percentage and net profit..

Your Return on Investment

50.00%
Net Profit: $5,000

ROI Calculation Breakdown

Final Value:$15,000
Initial Cost:$10,000
ROI Percentage:50.00%
Formula: ROI = ((Final Value - Initial Cost) / Initial Cost) x 100
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How This Calculator Works

ROI (Return on Investment) is a measure used to evaluate the efficiency or profitability of an investment or compare the efficiency of a number of different investments.

The ROI Formula:

ROI = ((Final Value - Initial Cost) / Initial Cost) x 100

Example Calculation:

If you bought a stock for $10,000 and sold it for $15,000, your ROI would be:
(($15,000 - $10,000) / $10,000) x 100 = 50%

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Formula

ROI (%) = ((Final Value − Initial Cost) / Initial Cost) × 100
Final Value
value when you exit or sell Description
Initial Cost
total cost to acquire or invest Description

Example Calculation

Initial cost$10,000
Final value$15,000
Calculated Outcome
ROI
50%
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How to Evaluate Your ROI

ROI is one of the most important metrics in finance. It helps you understand whether an investment is worth the risk and allows you to compare different opportunities on an equal footing.

Annualized ROI: The Real Picture

A 50% ROI might sound great, but it's very different if it took 1 year versus 10 years to achieve. For long-term investments, always look at the annualized ROI (also known as CAGR):

  • 1 Year: 50% ROI = 50% Annualized.
  • 5 Years: 50% ROI = 8.45% Annualized.
  • 10 Years: 50% ROI = 4.14% Annualized.

Use our compound interest calculator to see how your returns grow over time.

What is a Good ROI?

A "good" ROI depends on the risk and the asset class. For example:

  • Stocks: Historically, the S&P 500 has returned about 10% per year.
  • Real Estate: Often 5-10% depending on the market and leverage.
  • Business Ventures: Usually require a much higher ROI (20%+) to justify the increased risk and time commitment.
  • Savings Accounts: Low risk, low ROI (often 1-5%).

ROI vs. ROE

ROI measures the return on the *total cost* of an investment. ROE (Return on Equity) measures the return on the *cash you personally invested*. For example, if you buy a house with 20% down, your ROE will be much higher than your ROI if the house increases in value.

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