Free ROI Calculator

What is ROI?

Return on investment (ROI) is a simple way to measure how much value an investment generated compared with what it cost.

It is usually expressed as a percentage.

A positive ROI means the investment produced more value than it cost. A negative ROI means the investment returned less value than the amount invested.

ROI can be used to evaluate many types of investments, including:

• Marketing campaigns
• Software and SaaS tools
• Business projects
• Equipment purchases
• Hiring and training
• Advertising spend
• Real estate
• Technology investments
• Process improvements

Because ROI uses a percentage, it can also make it easier to compare investments of different sizes.

ROI Formula

The standard ROI formula is:

ROI = (Net Return ÷ Total Investment) × 100

Where:

Net Return = Total Return − Total Investment

You can also write the complete formula as:

ROI = ((Total Return − Total Investment) ÷ Total Investment) × 100

How to Use the ROI Calculator

1. Enter Your Total Investment

Include all relevant costs associated with the investment.

For example, if you are calculating the ROI of a software project, your investment could include the software subscription, implementation costs, employee time, training, and other direct expenses.

2. Enter Your Total Return

Enter the total measurable value generated by the investment.

Depending on what you are measuring, this could be revenue, cost savings, increased profit, recovered expenses, or another financial benefit.

3. Calculate Your ROI

The calculator will show your:

• ROI percentage
• Net return
• Return multiple

Use these numbers to evaluate the performance of the investment or compare it with other opportunities.

What Is a Good ROI?

There is no single ROI percentage that is considered “good” for every investment.

A good ROI depends on factors such as:

• The type of investment
• The amount of risk involved
• How long the investment takes to generate a return
• Your industry
• Available alternatives
• The cost of capital
• Your company's objectives

For example, a lower-risk investment may be attractive with a lower return, while a higher-risk project may need a significantly higher expected ROI to justify the risk.

Instead of evaluating ROI in isolation, compare it with your alternatives and consider how quickly the return was generated.

Positive vs. Negative ROI

Positive ROI

A positive ROI means the investment generated more value than it cost.

For example:

Investment: $10,000
Return: $12,000
ROI: 20%

The investment generated $2,000 more than it cost.

Break-Even ROI

An ROI of 0% means the investment generated exactly enough value to recover its cost.

Negative ROI

A negative ROI means the investment returned less than its total cost.

For example:

Investment: $10,000
Return: $8,000
ROI: -20%

The investment resulted in a $2,000 loss.

ROI vs. Profit: What's the Difference?

Profit tells you how much money an investment generated after costs.

ROI tells you how large that profit or loss was relative to the amount invested.

For example, two projects could each generate $10,000 in profit.

If Project A required a $20,000 investment while Project B required a $100,000 investment, their profitability in dollar terms is identical—but their ROI is very different.

ROI therefore makes it easier to compare the efficiency of different investments.

ROI vs. ROAS

ROI and ROAS are related, but they measure different things.

ROI compares your net return with the total cost of an investment.

ROAS (Return on Ad Spend) typically compares advertising revenue directly with advertising spend.

For example:

ROAS = Revenue from Ads ÷ Advertising Cost

ROI usually accounts for the cost of the investment when calculating the final gain or loss, while ROAS focuses specifically on revenue generated by advertising spend.

If you are evaluating the overall profitability of an investment, ROI is usually more useful. If you are evaluating advertising efficiency specifically, ROAS may be the better metric.

What Costs Should You Include in an ROI Calculation?

Your ROI is only as useful as the numbers you put into it. Try to include all costs that directly relate to the investment.

Depending on the investment, these could include:

• Purchase price
• Subscription fees
• Advertising spend
• Implementation costs
• Employee time
• Contractor costs
• Training
• Maintenance
• Transaction fees
• Equipment
• Consulting
• Additional operating expenses

Avoid excluding important costs simply to make the ROI appear higher. At the same time, be careful not to count the same expense twice.

What Should You Include as a Return?

Return can include more than direct revenue when the financial value can be measured reasonably.

Examples include:

• Additional revenue
• Increased profit
• Cost savings
• Reduced operating expenses
• Lower labor costs
• Increased productivity with measurable financial value
• Reduced customer acquisition costs
• Avoided expenses

When estimating non-revenue benefits, document your assumptions so the calculation can be reviewed later.

Limitations of ROI

ROI is useful because it is simple, but that simplicity also creates limitations.

Roi does not Automatically Account for Time

A 30% return generated in six months is very different from a 30% return generated over five years. Basic ROI treats both results as 30%.

Roi does not Measure Risk

Two investments may have the same expected ROI while having very different levels of uncertainty.

ROI Depends on Accurate Inputs

Leaving out costs or overestimating returns can significantly distort the result.

ROI may not Capture Every Benefit

Some investments create benefits that are difficult to assign a precise financial value to, such as employee satisfaction, brand awareness, customer experience, or reduced business risk.

For more complex investment decisions, ROI may be used alongside metrics such as payback period, net present value (NPV), internal rate of return (IRR), or annualized return.

How to Improve ROI

Improving ROI generally means increasing the value produced by an investment, reducing its cost, or doing both.

Consider:

• Reducing unnecessary expenses
• Increasing conversion rates
• Improving operational efficiency
• Automating repetitive work
• Increasing customer retention
• Improving pricing
• Focusing spending on higher-performing channels
• Reducing implementation time
• Eliminating underperforming activities
• Measuring results continuously instead of only after a project ends

The biggest opportunities often become clearer when ROI is tracked over time instead of calculated only once.