ROI Calculator

Calculate your Return on Investment (ROI) and annualized return (CAGR) with interactive visual models.

Math Audited
Initial Investment Cost$10,000.00
$
$100$1M
Final Value of Investment$15,000.00
$
$0$2M
Additional Expenses / Fees$0.00
$
$0$100K
Holding Period (years)2 years
0.1 yrs50 yrs
Simple ROI
+50.00%
Annualized ROI (CAGR)
+22.47%
Investment Split
Profit+50%
Holding Period Timeline
Day 02 years
Total Cost Basis$10,000.00
Net Profit / Loss$5,000.00
S&P 500 Historical Benchmark~10.00% annualized
How is this calculated?
1. Total Investment Cost (Cost Basis):
Total Cost = Initial Investment + Expenses
Total Cost = $10,000.00 + $0.00 = $10,000.00
2. Net Profit:
Net Profit = Final Value - Total Cost Basis
Net Profit = $15,000.00 - $10,000.00 = $5,000.00
3. Simple ROI:
ROI = (Net Profit / Total Cost Basis) × 100
ROI = ($5,000.00 / $10,000.00) × 100 = 50.00%
4. Annualized ROI (CAGR):
Years = 2 years = 2.0000 years
Annualized ROI = [(Final Value / Total Cost)(1 / Years) - 1] × 100
Annualized ROI = [($15,000.00 / $10,000.00)(1 / 2.0000) - 1] × 100 = 22.47%
Mathematical Audit LogVerified against standard geometric compounding and cost basis formulas used by Investopedia and the Corporate Finance Institute.Last Verified: 2026-07-12
Mathematical Formulas
Simple ROI:
ROI = (Net Profit / Total Cost) × 100
Annualized ROI (CAGR):
Annualized ROI = [(Final Value / Total Cost)(1 / Years) - 1] × 100
Core Assumptions
  • Assumes a lump-sum initial investment with no subsequent cash additions or partial liquidations.
  • Assumes continuous annual compounding of returns.
Limitations & Exclusions
  • Does not adjust for inflation; high nominal return might lead to real purchasing power loss.
  • Does not consider relative investment risk profiles.

How to Use the ROI Calculator

The ROI Calculator is a free, easy-to-use tool that helps you get accurate results instantly. Simply enter your values in the input fields above and the results will update in real time.

Step-by-Step Guide

  1. Enter the required values in the input fields provided above.
  2. Adjust the inputs using the sliders or type directly for precision.
  3. View the calculated results displayed below the inputs.
  4. Use the detailed breakdown to understand the numbers better.

Why Use This Calculator?

Manual calculations can be tedious and error-prone. Our roi calculator uses precise mathematical formulas to give you reliable results in milliseconds. Whether you are planning, comparing options, or just curious, this tool saves you time and effort.

Results are calculated using industry-standard formulas with full floating-point precision.

Frequently Asked Questions

Yes! All calculators on NumAtlas are completely free to use with no registration required. Use them as many times as you like.
Our calculators use precise mathematical formulas and compute results with full floating-point accuracy. All calculations are performed locally in your browser for instant results.
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