ROI & ROAS Calculator
Calculate ROI for investments or ROAS for ad campaigns in seconds. Two modes in one calculator: for marketing and for business projects.
Calculation currency
Currency affects only how amounts are displayed; the ROI and ROAS formulas do not change.
How much money you invested in the project
Net income after subtracting the investment
Formula
ROI = Net profit ÷ Investment × 100%
For example, with an investment of $1000 and a return of $1500, net profit is $500 and ROI is 50%.
How to use the calculator
A universal calculator: for investment projects and for measuring advertising effectiveness.
Choose the mode
ROI — for business projects, investments, crypto and stocks. ROAS — for measuring ad spend efficiency.
Enter investment and return
Specify the invested amount and the result. In ROI mode you can enter either net profit or total revenue.
Get the profitability percentage
The calculator shows ROI or ROAS as a percentage, a multiplier, and the monetary result with a formula explanation.
Calculator benefits
Two modes in one
ROI for business projects and ROAS for advertising revenue — switch with one click, no need to open another page.
Transparent formulas
Every result shows the formula and an explanation — you understand how the number came up, not just the answer.
No registration
Works in your browser, no data is stored anywhere. Calculate as many scenarios as you want for free.
FAQ about ROI and ROAS
What is ROI?
ROI (Return on Investment) is a profitability metric: net profit divided by the invested amount, expressed as a percentage. ROI = Net profit ÷ Investment × 100%. For example, an ROI of 50% means 0.5 units of net profit for every unit invested.
How is ROAS different from ROI?
ROAS (Return on Ad Spend) compares ad revenue with ad spend: ROAS = Revenue ÷ Ad spend × 100%. ROI compares net profit with the investment: ROI = Net profit ÷ Investment × 100%. ROAS measures the revenue efficiency of advertising, while ROI measures overall profitability after costs.
What ROI is considered good?
There is no universally “good” ROI. The benchmark depends on the industry, risk, investment period, inflation, and alternative returns. Compare projects over the same period and include all costs. A positive ROI means a profit, but ROI alone does not show how quickly it was earned.
Can it be used for crypto or stocks?
Yes, the ROI formula is universal for any asset. Enter the purchase amount (investment) and the current value or sale revenue (income). The calculator will return the profitability percentage. For long-term investments, also factor in inflation and broker fees — they reduce real ROI.