ROI Calculator

Free ROI calculator for investors. Enter initial investment and final value to see ROI percentage, annualized return, and total gain. Compare multiple investments side by side, see growth projections, and calculate time to double using the Rule of 72.

Share Y

Investment Amount ($)

Final Value ($)

Time Period

Period Unit

Return on Investment

+50.00%

Annualized ROI

+14.47%

Total Return

+$5,000.00

Final Value

$15,000.00

ROI = ($15,000.00 - $10,000.00) / $10,000.00 = 50.00%

Break-Even & Rule of 72

Years to Double (Rule of 72)

5.0years

72 / 14.5 = 5.0 years

Rule of 72 Explained

Divide 72 by the annual return rate to estimate how many years it takes to double your investment. This is a quick approximation that works best for rates between 6% and 10%.

Investment Growth Over Time

$0$7.5K$15.0K

Initial investment: $10,000.00

What If? ROI Comparison (3 years)

Annual Rate	Final Value	Profit	Total ROI
2%	$10,612.08	+$612.08	+6.12%
5%	$11,576.25	+$1,576.25	+15.76%
7%	$12,250.43	+$2,250.43	+22.50%
10%	$13,310.00	+$3,310.00	+33.10%
12%	$14,049.28	+$4,049.28	+40.49%
15%closest	$15,208.75	+$5,208.75	+52.09%
20%	$17,280.00	+$7,280.00	+72.80%
25%	$19,531.25	+$9,531.25	+95.31%

Based on an initial investment of $10,000.00 over 3 years, compounded annually.

Compare Multiple Investments

Name

Invested ($)

Final Value ($)

Name

Invested ($)

Final Value ($)

Investment A+40.00%

Invested: $10,000.00Return: +$4,000.00Annualized: +11.87%

Investment B+65.00%

Invested: $10,000.00Return: +$6,500.00Annualized: +18.17%

Investment B has the highest ROI at 65.00% (18.17% annualized)

Annualized returns are calculated using the time period above (3 years).

How ROI is Calculated

Basic ROI Formula

ROI = (Final Value - Investment Cost) / Investment Cost x 100%

Annualized ROI

Annualized ROI = ((Final / Initial) ^ (1 / Years) - 1) x 100%

Accounts for compounding and allows comparison of investments with different time horizons.

Rule of 72

Years to Double = 72 / Annual Return Rate

A quick way to estimate doubling time. At 8% annual return, it takes approximately 72/8 = 9 years to double.

Save your results

AI Analysis PRO

AI analysis detected patterns in your calculation. Personalized insights and recommendations available with Pro...

Unlock AI Insights — Free 7-Day Trial

Download PDF Report

Get detailed breakdowns, charts, and shareable PDF reports with Pro

PRO

Share your result

Share Y

Estimate Mortgage Generate Passwords Format JSON

Rate this tool

Unlock 8 AI-powered analysis tools

Resume scanner, contract analyzer & more — Pro $9/mo

Learn more

Want more? Unlock the full experience

Pro members get the most out of ROI Calculator

PDF Reports

Download detailed reports with charts and breakdowns

AI Analysis

Get personalized insights and recommendations

Unlimited Access

No daily limits on any tool or calculator

Try Pro Free for 7 DaysThen $9.00/mo · Cancel anytime

Open a Brokerage Account

Start investing with $0 commissions on stocks and ETFs.

Open Account

Sponsored · We may earn a commission at no cost to you

How to Use ROI Calculator

1Enter initial investment amount.
2Enter final value or total gain/loss.
3Set the time period in years.
4View ROI, annualized return, and time to double.

Frequently Asked Questions

ROI = (Final Value - Initial Investment) ÷ Initial Investment × 100. E.g., invest $10,000, sell for $13,000 → ROI = 30%.

Annualized ROI adjusts the return to a per-year basis, useful for comparing investments held for different durations.

Divide 72 by the annual return rate to estimate years to double. At 8% return, money doubles in ~9 years (72÷8=9).

Yes, the ROI Calculator is 100% free to use with no limitations. There is no registration required, no daily usage caps, and no hidden fees. You can use it as many times as you need.

The ROI Calculator uses industry-standard formulas and algorithms to deliver reliable results. While the tool is designed for accuracy, results should be used as estimates and guidance. For critical decisions, always consult a qualified professional.

Yes, the ROI Calculator is fully responsive and works perfectly on smartphones, tablets, and desktop computers. Simply open NexTool in your mobile browser and navigate to the tool — no app download required.

Get weekly tips for ROI Calculator & more

No spam. Unsubscribe anytime.

About ROI Calculator

NexTool's ROI Calculator is completely free to use with no sign-up required. Your data is processed directly in your browser and never sent to our servers, ensuring complete privacy and instant results.

Embed This Tool

Add ROI Calculator to your website. Paste the code below into your HTML. The iframe auto-resizes to fit the tool content.

Width

Height

px or %

<iframe src="https://getnextool.com/embed/roi-calculator" width="100%" height="600" frameborder="0" style="border:0;border-radius:12px;" loading="lazy" title="ROI Calculator - NexTool"></iframe>
<script>window.addEventListener('message',function(e){if(e.data&&e.data.type==='nextool-embed-resize'){var iframes=document.querySelectorAll('iframe[src*="getnextool.com/embed/"]');iframes.forEach(function(f){if(e.source===f.contentWindow)f.style.height=e.data.height+'px'})}});</script>

Open embed in new tab