Compare calculators

Both calculators run independently — change the inputs on either side to compare results.

ROI Calculator

Calculate the simple return on investment (ROI) percentage from an initial outlay and a final value. Use it for quick performance comparisons across investments where time horizon is the same or you do not need an annualized view.

Initial Investment ($)

Final Value ($)

Economics

Present Value Calculator

Discount a future cash amount back to today's value using PV = FV / (1 + r)ᵗ. The foundation of every cash-flow valuation in finance — bonds, equities, projects, real estate, insurance, and any decision that trades current money against future money.

Future Value ($)

Discount Rate (%)

Number of Periods (years)

Key differences

	ROI Calculator	Present Value Calculator
Category	Investing	Economics
Inputs required	2	3
Result	Return on Investment (%)	Present Value ($)
What it does	Calculate the simple return on investment (ROI) percentage from an initial outlay and a final value. Use it for quick performance comparisons across investments where time horizon is the same or you do not need an annualized view.	Discount a future cash amount back to today's value using PV = FV / (1 + r)ᵗ. The foundation of every cash-flow valuation in finance — bonds, equities, projects, real estate, insurance, and any decision that trades current money against future money.