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Calculators4 min readMarch 4, 2026

ROI Calculator: Measure Your Investment Returns & Marketing Performance

Calculate return on investment with our free ROI calculator. Simple ROI, annualized returns, and marketing ROI with lead tracking.

Understanding your Return on Investment (ROI) is crucial for making smart financial and business decisions. Our free ROI Calculator offers three powerful modes to analyze different types of investments.

What is ROI?

ROI measures the profitability of an investment relative to its cost. The basic formula is: ROI = ((Final Value - Initial Cost) / Initial Cost) × 100%. A positive ROI means profit; negative means loss.

Three Calculation Modes

Simple ROI calculates the basic return percentage between initial investment and final value. Annualized ROI normalizes returns to a yearly basis with visual projections, perfect for comparing investments of different durations. Marketing ROI tracks campaign performance including cost per lead, conversion rates, and customer acquisition costs.

Why ROI Matters

Investors use ROI to compare stocks, real estate, and business ventures. Marketers use it to evaluate campaign effectiveness. The stock market averages 7-10% annual ROI. A good marketing campaign aims for a 5:1 revenue-to-cost ratio.

Use Our Free ROI Calculator

No signup required. Works on any device with instant calculations and visual charts.

Try ROI Calculator Now

Use our free ROI Calculator tool — no signup required, works on any device.

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