Simple Interest (SI) is the interest calculated only on the original principal amount for the entire loan or investment period. It does not include interest on previously earned interest.
📌 Simple Interest Definition
Simple interest is a quick and easy method of calculating interest where the interest amount remains the same every year.
📐 Simple Interest Formula
The formula used to calculate simple interest is:
- P = Principal amount
- R = Rate of interest per year (%)
- T = Time (in years)
🧮 Simple Interest Example
Suppose you invest ₹10,000 at an interest rate of 5% per year for 3 years.
Simple Interest = ₹1,500
The total amount received after 3 years will be: ₹11,500
🏦 Where is Simple Interest Used?
- Personal loans (short-term)
- Car loans (some cases)
- Education loans (initial period)
- Fixed short-term investments
📊 Simple Interest vs Compound Interest
Unlike compound interest, simple interest does not earn interest on accumulated interest. Compound interest grows faster over time.
🧠 Advantages of Simple Interest
- Easy to calculate
- Transparent interest amount
- Lower total interest cost
⚠️ Disadvantages of Simple Interest
- No growth on earned interest
- Not suitable for long-term investments
🛠️ Calculate Simple Interest Online
Use our free calculator to instantly calculate simple interest.
👉 Learn more: What is Compound Interest?
Simple Interest Calculator