Free Tools Rate of Return Calculator

A Rate of Return (ROR) Calculator is a tool used to calculate the profit or loss on an investment as a percentage of the original amount invested.

It helps investors evaluate how well an investment has performed over a specific period.

Basic Formula

$$\text{Rate of Return} = \frac{\text{Ending Value} – \text{Beginning Value}}{\text{Beginning Value}} \times 100\%$$Rate of Return=Beginning ValueEnding Value−Beginning Value​×100%

Example

Suppose you invest $10,000 in a stock.

After one year, the investment is worth $11,500.$$\text{ROR} = \frac{11,500 – 10,000}{10,000} \times 100\% = 15\%$$ROR=10,00011,500−10,000​×100%=15%

Your investment earned a 15% rate of return.

Visualizing Investment Growth

$FV = PV(1+r)^n$FV=PV(1+r)n

$FV=PV(1+r)^n=1000(1+0.05)^{20}=\text{\$2,653.30}$FV=PV(1+r)n=1000(1+0.05)20=$2,653.30

$\mathrm{PV}$PV

$

$r$r

%

$n$n

This illustrates how an investment can grow over time when returns are reinvested.

Example of a Negative Return

If your $10,000 investment falls to $9,000:$$\text{ROR} = \frac{9,000 – 10,000}{10,000} \times 100\% = -10\%$$ROR=10,0009,000−10,000​×100%=−10%

A negative result indicates a loss.

Types of Rate of Return

• Simple Rate of Return – Measures gain or loss without considering time.
• Annualized Return – Converts returns into a yearly rate for easier comparison.
• Total Return – Includes capital gains plus dividends or interest received.
• Real Return – Adjusts for inflation.

Why Use a Rate of Return Calculator?

It helps you:

• Measure investment performance
• Compare different investments
• Track portfolio growth
• Evaluate stocks, bonds, real estate, and businesses
• Make informed financial decisions

Interpreting Results

Rate of Return	Meaning
Positive	Investment gained value
Zero	Broke even
Negative	Investment lost value

In short, a Rate of Return Calculator shows the percentage gain or loss on an investment, helping you assess how effectively your money has grown over time.