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An ROI calculator tells you the return on investment as a percentage, based on how much you put in versus what you got back. It works for any kind of investment — stocks, a small business, real estate, or even a marketing campaign — as long as you know the initial cost and the final value or profit.
Raw profit numbers don't tell the whole story without context — making $5,000 profit sounds great until you realize it took a $50,000 investment to get there. This tool exists to turn profit into a percentage you can actually compare across different investments or opportunities.
ROI is calculated as (Net Profit ÷ Cost of Investment) × 100. If you invested $2,000 and it grew to $2,600, your net profit is $600, and dividing that by your original $2,000 gives an ROI of 30%. This simple percentage makes it much easier to compare a stock that returned 30% against a business venture that returned 15%, even if the raw dollar amounts involved were completely different.
ROI = (Net Profit ÷ Cost of Investment) × 100, giving you a percentage that represents your return relative to what you originally invested.
Generally yes, but it's also worth considering the time period and risk involved — a 20% ROI over 1 year is very different from 20% over 5 years.
No, basic ROI doesn't factor in how long the investment took to generate that return; for time-adjusted comparisons, annualized return metrics are more appropriate.
Yes, if your final value is lower than your initial investment, this calculator will show a negative ROI representing your loss.
No, ROI measures return relative to investment cost, while profit margin measures profit relative to revenue — they're different metrics.