Interest Calculator
Calculate simple interest earned or paid over time.
Enter the principal amount, annual interest rate, and duration in years.
Example
Interest rate: 4%
Time: 3 years
→ Interest earned = $600
What does this interest calculator do?
This calculator computes simple interest using a principal amount, interest rate, and time period to estimate interest earned or paid.
Why use this interest calculator?
It helps you quickly evaluate savings growth or borrowing costs without complex formulas or spreadsheets.
How does it work?
The calculator applies the simple interest formula:
Interest = Principal × Rate × Time
Frequently Asked Questions
Is this a simple or compound interest calculator?
This calculator uses the simple interest formula. It does not compound interest.
Can I use this for loans and savings?
Yes. It works for both borrowing costs and basic savings interest estimates.
Does this include fees or taxes?
No. It calculates interest only, without fees, taxes, or additional charges.