CalculatorFinance

Compound Interest Calculator

Estimate compound growth for a lump-sum investment.

Instant · no account

Input

Enter your values

Principal

Annual rate%

Years

Compounds per year

Method

How it works

Change any input above and the result updates instantly. The formula or method used by this tool is shown below.

A = P × (1 + r/n)^(n×t)

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Quick answers

About this tool

What does the Compound Interest Calculator do?+

Estimate compound growth for a lump-sum investment.

How does this calculator calculate the result?+

It uses this method: A = P × (1 + r/n)^(n×t)

Are my inputs saved or sent to an account?+

Core CalcForge tools require no account, and most calculations run locally in your browser. Favorites and recent-tool history, when used, stay in this browser.