Results are estimates. Real returns from banks or investments can differ, and market investments can lose value.
How to Calculate Interest
Choose the type, enter the amount, rate and time.
- Choose Simple interest, Compound interest or SIP
- Enter the amount, yearly rate and time in years
- For compound interest, choose how often interest is added
- See the total, interest earned and the year-by-year table
- Copy the result if you need it
Everything happens inside your browser, so your document is never uploaded.
Why Use This Tool?
Before you save, invest or lend money, you should know how much it will grow. Compound interest and SIP can grow much faster over many years.
This tool shows the answer and the yearly growth, so you can compare options easily.
Features
- Simple interest
- Compound interest with yearly, half-yearly, quarterly or monthly adding
- SIP future value with monthly investment
- Year-by-year table
- Principal and interest split bar
- Amounts in Indian number style
Frequently Asked Questions
What is simple interest?
Interest only on the original amount. Interest = P x R x T / 100.
What is compound interest?
Interest is added to the amount and then earns interest too. Total = P x (1 + R/(100 x n)) ^ (n x T).
How is SIP value worked out?
Each monthly payment is assumed to be made at the start of the month and to earn the same yearly rate, added monthly.
Are the results guaranteed?
No. Bank rates can change, and market investments do not give a fixed return.
Is my data saved?
No. Everything is calculated in your browser.
Is it free?
Yes, completely free.
About This Tool
A simple calculator to plan savings, deposits and investments.
It works in your browser and stores nothing.