Tool

Interest Calculator

Calculate simple and compound interest growth with optional monthly contributions.

Inputs

$
$

Results

Final Amount (Compound)
$0.00
Total Interest Earned
$0.00
Simple Interest Total
$0.00
Compound Interest Total
$0.00

Visualization

Growth and Comparison Charts

Growth Chart

Simple vs Compound

Year-by-Year Breakdown

Year Simple Total Compound Total Total Contributions Interest Earned

Cross-Tool Navigation

Loan Tool FAQ

How should I compare calculator outputs?

Compare monthly payment, total interest, and payoff speed together.

Can this tool help with planning extra payments?

Yes. Test baseline and accelerated scenarios to estimate savings.

Comparison section

Compare this calculator with related tools for different borrowing scenarios.