Interest Calculator

Calculate the monthly interest payable effortlessly and plan your loan repayments.

What is an interest rate calculator?

An interest rate calculator is a tool used to determine the amount of interest earned or paid on a financial transaction. It allows users to input variables such as principal amount, interest rate, time, and compounding frequency to calculate the accrued interest accurately. With the help of our loan interest calculator, your monthly interest calculation can be done effortlessly. You get to know exactly how much you are liable to pay as interest throughout the personal loan tenure. Enter a few relevant details about the credit you need and acquire in-depth information regarding EMI, total interest payable and more.

Our online calculator acts as a reliable financial calculator, enabling you to quickly calculate interest rates, EMIs, and repayment amounts for better loan planning and management..

How to calculate interest on loan using Bajaj Finserv interest calculator?

The online monthly interest calculator ensures quick computation on how to calculate interest and EMIs from the comfort of your home, without needing to manually input the interest calculator formula. Using a Bajaj Finance loan interest rate calculator is simple, with the interface being user-friendly. Here is how to use an interest rate calculator in three simple steps:

Step 1: Enter the loan amount you want to avail.
Step 2: Next, enter the rate of interest on your loan.
Step 3: Select the repayment period you wish to opt for and get accurate results instantly.

Using the manual formula reverse calculation is also possible, i.e., you can calculate rate of interest from EMI amount, tenure, and total amount.

Methods of calculating interest

The two primary methods of calculating the interest are simple interest rates and compound interest rates.

1. Simple interest

Simple interest is a straightforward method of calculating interest earned or paid on a principal amount. It remains constant throughout the period and is calculated solely on the initial principal. A higher simple interest rate on the principal amount can provide better returns on investments and vice versa. Unlike compound interest, there's no consideration of interest earned or paid in previous periods. It's commonly used for short-term loans or investments where interest doesn't compound over time.

Simple interest formula

Here is the mathematical formula, on which a simple interest calculator works to compute the loan amount:

A = P (1+RT)

To calculate Interest Paid on a loan, the formula is

Interest = A – P.

Where,

  • A = Total Amount Paid
  • P = Principal Amount
  • R = Rate of Interest
  • T = Number of years

Simple interest example

Suppose you borrow Rs. 100,000 at a simple interest rate of 10% per annum for five years. Using the interest rate formula, the simple interest amounts to Rs. 50,000, making the total repayment Rs. 150,000. Unlike compound interest, simple interest remains fixed over the loan term, providing a clear and easy repayment structure. This example highlights how the interest rate formula simplifies loan calculations, helping borrowers plan repayments without the complexity of compounding.

2. Compound interest

Compound interest is a method of calculating interest on an initial principal amount, including interest accumulated from previous periods. As time progresses, the interest is added to the principal, leading to exponential growth. Compound interest is commonly used in long-term investments, savings accounts, and loans, maximising returns over time.

Compound interest formula

Here is the mathematical formula, on which a compound interest calculator works to compute loan amount:

A = P (1 + r/n) ^ nt

To calculate Interest Paid on a loan, the formula is

Interest = A – P.

  • A = Total Amount Paid
  • P = Principal Amount
  • R = Rate of Interest
  • N = number of times interest is compounded per year
  • T = Number of years

Compound interest example

Let's say you borrow Rs. 100,000 at an annual interest rate of 10% with quarterly compounding. Over five years, the compound interest formula yields Rs. 61,051.02 in interest, resulting in a total repayment of Rs. 161,051.02. Compound interest in India, as elsewhere, amplifies the total repayment due to the effect of interest compounding periodically, demonstrating the significance of understanding compound interest in financial planning.

Difference between simple interest and compound interest

Aspect

Simple interest

Compound interest

Calculation method

Calculated solely on the principal amount invested or borrowed.

Calculated on both the principal amount and the accumulated interest over time, resulting in interest on interest.

Formula

Simple Interest = Principal × Rate × Time

Compound Interest = Principal × (1 + Rate)^Time - Principal

Growth pattern

Linear growth pattern; interest remains constant throughout the investment or loan period.

Exponential growth pattern; interest accumulates over time, leading to a larger amount than simple interest for the same principal.

Impact on returns

Generally results in lower returns compared to compound interest, especially over longer periods.

Typically leads to higher returns compared to simple interest, particularly over extended durations, due to compounding effects.

Frequency of interest

Interest is calculated only once at the end of the investment or loan period.

Interest is calculated periodically, such as annually, semi-annually, quarterly, or monthly, and added to the principal for future calculations.


Read more: Difference between simple interest and compound interest

Advantages of using a loan interest rate calculator

Using an interest calculator to compute EMIs offers quick, accurate results, helping you plan your finances better before you apply for personal loan. It allows you to compare loan options and choose the most affordable one. Interest calculator for loan is a helpful tool to understand the total cost of borrowing. Here are some benefits of utilising our interest calculator:

  • Accuracy: Our interest calculator ensures precise calculations, offering accurate figures for interest and repayments, eliminating errors and providing reliable financial insights.
  • Time efficiency: With swift result generation, borrowers save time, enabling them to make informed decisions promptly without delays in their financial planning or loan application processes.
  • Financial planning: By providing accurate repayment estimates, our calculator assists borrowers in planning budgets effectively, ensuring they can manage their finances efficiently and meet their repayment obligations.
  • Comparison tool: Borrowers can easily compare loan offers from different lenders using our calculator, facilitating informed decisions based on interest rates, repayment terms, and overall borrowing costs, optimizing their loan selection process.
  • Cost-effectiveness: Our interest calculator and personal loan calculator helps borrowers minimise overall borrowing costs by allowing them to evaluate various loan options and choose the most cost-effective solution tailored to their financial needs and capabilities.
  • Informed decisions: Empowering borrowers with comprehensive information, our calculator equips them to make informed decisions regarding loans, enabling them to choose the most suitable options aligned with their financial goals and circumstance. Interest amount calculators help in understanding the total cost of borrowing and enables in better decision-making.

Disclaimer

Results generated by the calculator(s) are indicative in nature. The interest rate applied on the loan will depend on the prevailing rates at the time of loan booking.

The calculator(s) are not intended to provide its users/ customers with results that are either certified by Bajaj Finance Limited (“BFL”) or are an obligation, assurance, warranty, undertaking or commitment, financial and professional advice by BFL, under any circumstances. The calculator(s) is only a tool that assists the users/ customers arrive at results of various illustrative scenarios generated from data input by the user/ customer. The use of the calculator is entirely at the risk of the user/ customer, BFL is not responsible for any reason, for any errors in any outcome resulting from the use of the calculator.

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Frequently asked questions

How to use an interest calculator?

Using the Bajaj Finserv Interest Calculator is easy. To use an interest calculator, enter the loan amount you want to avail. Next, enter the rate of interest on your loan charged by the lender followed by the repayment period you wish to opt for and get accurate results instantly.

How do you calculate simple interest on 11% interest rate?

To calculate simple interest at an 11% rate, multiply the principal amount by the interest rate and the time period (in years). The formula is: Simple Interest = Principal × Rate × Time.

What are the factors that affect personal loan interest rates?

There are several factors that influence the personal loan interest rate that an individual gets. These include the borrowers' monthly income, credit score, repayment history, debt-to-income ratio, and lender-borrower relationship. In order to gain a good interest rate on your personal loan, and thereby reduce the cost of borrowing, it is advisable to ensure that all of these parameters are healthy.

How can an interest calculator help you?

An interest calculator is an online tool that makes your interest calculations easy. Manually calculating interest based on the interest rate on a loan of different amounts can be a tedious task. Moreover, the chances of errors while making these calculations manually are higher as well. With an interest calculator, you can check the interest payable for different loans amount within just a few seconds. The output from the interest calculator, helps you to decide the loan terms with ease.

How can I calculate interest rates?

To calculate interest rates, use the formula: Interest = Principal × Rate × Tenure. This equation helps determine the interest rate on investments or loans.

What is the meaning of real interest rate?

The real interest rate is the nominal interest rate adjusted for inflation, reflecting the true cost of borrowing.

How to calculate interest amount per month?

Divide the annual interest rate by 12 and multiply by the loan principal: Monthly Interest = (Annual Rate / 12) * Principal.

How to calculate fixed interest rate?

Use the agreed-upon rate from the loan agreement, applying it consistently to the principal over the loan term.

What is difference between fixed vs. floating interest rate?

A fixed interest rate remains constant throughout the loan tenure, providing stability, while a floating rate varies based on market conditions. Use an interest calculator to compare and choose the best option for your needs.

What is a return calculator?

A return calculator helps you estimate the profit or loss on an investment by considering factors like initial amount, duration, and returns, aiding better financial planning.

How is CAGR calculated?

A CAGR calculator computes the Compound Annual Growth Rate by measuring the mean annual growth rate of an investment over a specified period, smoothing out volatility.

How is FV calculated?

A future value calculator determines the value of an investment after compounding interest over time, considering the principal, rate, and duration.

What is the power of compounding?

The magic of compounding refers to earning interest on both the initial principal and accumulated interest, significantly boosting investment growth over time.

How do I convert to percentage?

A percentage calculator converts a number into its percentage form, making it easier to understand proportions and compare values.

How do you calculate interest for half yearly?

A half yearly interest calculator computes interest by applying the annual rate twice a year, calculating interest on the principal plus accrued interest every six months.

What uncontrollable economic factors affect interest rates?

Interest rates are influenced by uncontrollable factors like inflation, economic growth, central bank policies, global economic conditions, government borrowing, and currency exchange rate fluctuations.

What controllable factors determine the interest rate on loans?

Controllable factors include credit score, income level, debt-to-income ratio, loan amount and tenure, collateral, and borrower’s relationship with the lender.

How can I secure better interest rates on my loan?

Improve your credit score, increase stable income, reduce debt-to-income ratio, opt for shorter loan tenures, and build a strong relationship with lenders to secure better interest rates.

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