ROI Calculator

What is the ROI Calculator?

ROI stands for return on investment. The calculator tells you, as a percentage, how much you gained or lost relative to what you put in. Businesses use it to evaluate whether a project was worth the money. Investors use it to compare how different assets performed. Marketers track it to see if an ad campaign paid off. CalciHub's ROI calculator handles the math instantly — and if you include the time period, it also calculates annualized ROI so you can compare investments that ran for different lengths of time.

How Does It Work?

ROI measures the net gain or loss as a percentage of the original investment. The formula is the same whether you're evaluating a stock purchase, a marketing campaign, or a business decision.

Formula: ROI = [(Net Return ÷ Cost of Investment) × 100]

Net Return = final value minus initial investment

Cost of Investment = the original amount invested or spent

ROI is expressed as a percentage — positive means profit, negative means loss

How to Use CalciHub's ROI Calculator

1. Enter the initial investment amount.

2. Enter the final value or total return.

3. Optionally enter the time period in years for annualized ROI.

4. Click Calculate to see your ROI percentage and net gain or loss.

Tip: Use annualized ROI when comparing two investments that ran for different durations — a 30% gain over 4 years is very different from a 30% gain over 1 year.

A Quick Example

Mike invested $12,000 in stocks two years ago. Today, the portfolio is worth $16,800.

Initial investment: $12,000

Current value: $16,800

Net return: $4,800

Time period: 2 years

ROI: ($4,800 ÷ $12,000) × 100 = 40%

Annualized ROI: approximately 18.3% per year

40% total sounds great, but the annualized figure is what really matters for comparison — it lets Mike evaluate whether those stocks outperformed his other options over the same two years.

Frequently Asked Questions