ROI Calculator

Como calcular o ROI?

ROI (Return on Investment) é o ganho percentual de um investimento. A fórmula é: ROI = (Ganho - Investimento) / Investimento × 100.

O ROI anualizado normaliza o retorno por ano, permitindo comparar investimentos com prazos diferentes: ROI_anual = ((Final / Inicial)^(1/anos) - 1) × 100. Esse cálculo equivale ao CAGR e é o número certo para comparar fundos, ações ou imóveis com horizontes diferentes.

Tudo é calculado no seu navegador — nada é enviado a servidores.

ROI: Return on Investment

ROI (Return on Investment) measures the profitability of an investment as ROI = (gain − cost) / cost · 100%. It's a simple, time-agnostic ratio: invest R$ 10,000 and get back R$ 15,000 means a 50% ROI. The main limitation is precisely that it ignores time — two projects with the same 50% ROI but durations of 1 year vs 5 years are not equivalent. For time-sensitive comparisons, use CAGR (Compound Annual Growth Rate) or IRR (Internal Rate of Return) instead. Common variants include ROAS (Return on Ad Spend) in digital marketing, ROE (Return on Equity) for shareholders, and ROIC (Return on Invested Capital) for operating performance.

Applications and context

ROI is the default metric for evaluating marketing campaigns (Google Ads, Meta Ads — typically measured as ROAS), M&A decisions, internal projects, and real estate investments (rental yield plus appreciation). It's useful for quick screening, but pair it with payback period and CAGR whenever horizon matters.

FAQ

Is a negative ROI possible? Yes — if the gain is smaller than the cost, ROI is negative and represents a loss. ROI of −20% means you recovered only 80% of what you invested.

ROI vs ROAS — what's the difference? ROAS measures revenue divided by ad spend; ROI subtracts cost and uses profit. ROAS of 4× can still mean a negative ROI if margins are thin.

How do I compare projects with different durations? Convert ROI to an annualized rate (CAGR) before comparing. A 50% ROI over 5 years is only ~8.4% per year.