Ctrl K

★ My Tools

📘 Step-by-step guide

How to Use Interest Calculator – Complete Guide

Find simple interest, compound interest or the value of a monthly SIP, with a year-wise table.

⏱ 2 min read🛠 Utility Tools🔒 Free · Works on your device
🚀 Open Interest Calculator

⚡ Quick answer

Choose the type, enter the amount, rate and time.

Open Interest Calculator, follow the steps below, and you are done in a minute or two. No sign-in is needed.

📋 How to use Interest Calculator – step by step

  1. Choose Simple interest, Compound interest or SIP
  2. Enter the amount, yearly rate and time in years
  3. For compound interest, choose how often interest is added
  4. See the total, interest earned and the year-by-year table
  5. Copy the result if you need it

💡 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 at a glance

  • 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

🎯 Helpful tips

  • Double-check the values you type, because the result is only as good as the input.
  • For important matters such as money, land or legal papers, confirm the result with an official source.
  • Use the Copy button to move the result into your notes or messages.

❓ 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.

Ready to try it?

Interest Calculator is free and your files stay on your device.

🚀 Open Interest Calculator