Investment CalculatorsBrowse more in Investment Calculators calculators

Investment Growth Calculator

Project how an investment grows over time with recurring contributions and compound returns.

Last reviewed: July 8, 2026
Cost: Free to use
Data: Runs in your browser

Starting Investment

Monthly Contribution

Annual Return (%)

Years Invested

Ending Value

Enter valid inputs

Total Invested

Enter valid inputs

Investment Growth

Enter valid inputs

Growth on Invested Capital

Enter valid inputs

Methodology

How this calculator handles inputs

This calculator uses the values you enter above and applies the formula explained in the guide below. Results update in the browser and are intended for quick planning, comparison, and sanity-checking.

Use consistent periods, currencies, and units across inputs.
Review any assumptions before using the result in a decision.
Recalculate when rates, prices, tax rules, or business terms change.

Important note

This tool provides general planning information only. It is not tax, legal, financial, accounting, or investment advice. Check the current rules for your location and speak with a qualified professional before making a high-stakes decision.

Guide

How it works

Use this calculator to project how an investment may grow over time with recurring contributions.

What this calculator does

The investment growth calculator estimates ending value, total invested, and projected growth.

It uses:

starting investment
monthly contribution
annual return
years invested

Investment Growth Formula

FV = PV x (1 + r)^n + PMT x (((1 + r)^n - 1) / r)

Where PV is the starting investment, PMT is the recurring contribution, r is the monthly return, and n is the number of months.

Example calculation

If you start with 10,000, add 500 per month, earn 7%, and invest for 20 years, the calculator estimates the ending value and separates your contributions from growth.