Interest Calculator

Calculate simple and compound interest with detailed breakdown

Simple Interest Calculator

Principal Amount ($)

Annual Interest Rate (%)

Time Period

Compound Interest Calculator

Principal Amount ($)

Annual Interest Rate (%)

Time Period (Years)

Compounding Frequency

Simple vs Compound Interest Comparison

Principal Amount ($)

Annual Interest Rate (%)

Time Period (Years)

Compounding Frequency

Interest Calculator Information

Simple Interest

Simple interest is calculated only on the principal amount. Formula: I = P × R × T

I = Principal × Rate × Time

Compound Interest

Compound interest is calculated on principal plus previously earned interest. Formula: A = P(1 + r/n)^(nt)

A = P(1 + r/n)^(nt)

Compounding Frequency

More frequent compounding results in higher returns. Daily compounding typically yields the best results.

Investment Tip

The power of compound interest increases significantly over longer time periods. Start investing early!