Are you tired of scratching your head and struggling to understand how interest rates on loans are calculated in AED? Well, fret no more! In this comprehensive guide, we’ll break down the process of calculating interest rates on loans, step-by-step, using real-life examples. 

Whether you’re a beginner or just need a refresher, this article will help you make sense of those elusive numbers.

Understanding the Basics

Interest Rate


To calculate the interest rate on a loan, it’s essential to grasp a few fundamental concepts. Let’s start with the basics:

  • Principal Amount: The principal amount refers to the initial sum of money you borrow from a lender. It represents the original loan amount before any interest or fees are added. For example, let’s say you borrow AED 10,000 from a lender
  • Interest Rate: The interest rate is the cost of borrowing money, typically represented as a percentage. It determines how much extra you’ll have to pay back to the lender. For instance, if the interest rate is 5%, you’ll need to pay an additional 5% of the principal amount.
  • Loan Tenure: The loan tenure refers to the duration or length of time over which you will be repaying the loan. It is usually measured in years, but it can also be in months or any other agreed-upon time frame. The loan tenure plays a crucial role in determining the total interest paid and the monthly repayment amount.
  • Repayment Frequency: The repayment frequency specifies how often you make loan repayments to the lender. It can be monthly, quarterly, annually, or any other agreed-upon schedule. The repayment frequency affects the calculation of interest and the overall repayment structure.
  • Amortization Schedule: An amortization schedule outlines the repayment plan for the loan, including principal and interest portions. It helps you understand how each payment contributes to reducing the outstanding balance over time.

Different Types of Interest Rates

Types of Interest Rates


Fixed Interest Rate

A fixed interest rate remains constant throughout the loan term. This means that the interest rate you agree to at the beginning of the loan will remain unchanged, regardless of any fluctuations in the market.

Variable Interest Rate

Also known as adjustable or floating interest rates, variable interest rates can change over time based on market conditions. These rates are typically tied to a benchmark, such as the Central Bank rate or the Emirates Interbank Offered Rate (EIBOR).

Flat Interest Rate

Flat interest rates are commonly used in personal loans and car loans in the UAE. With flat interest rates, the interest is calculated on the original principal amount for the entire loan tenure without considering the reduced balance. It’s important to note that flat interest rates may appear lower than other rates, but they can be more expensive in the long run.

How to Calculate Interest Rate on a Loan

Calculate Interest Rate


Simple Interest Calculation

Now that we’ve covered the basics, let’s dive into the calculations. The first method we’ll explore is calculating simple interest:

  • Formula: The formula for calculating simple interest is straightforward: 

Simple Interest = (Principal Amount × Interest Rate × Time in Years) / 100.

Example: Let’s say you want to borrow AED 10,000 from a lender for a period of 2 years at a simple interest rate of 5%. To calculate the simple interest, plug the values into the formula:

  • Principal Amount = AED 10,000
  • Interest Rate = 5%
  • Time in Years = 2

Substituting these values into the formula, we get:

  • Simple Interest = (10,000 × 5 × 2) / 100
  • Simple Interest = (10,000 × 5 × 2) / 100
  • Simple Interest = 100,000 / 100
  • Simple Interest = AED 1,000

So, in this example, the simple interest on a loan of AED 10,000 at a 5% interest rate for 2 years would be AED 1,000. This means that you would need to repay AED 11,000 at the end of the loan term (AED 10,000 principal + AED 1,000 interest).

Remember, simple interest calculations are relatively straightforward and are commonly used for short-term loans or loans with fixed interest rates.

Compound Interest Calculation

While simple interest is relatively easy to calculate, most loans involve compound interest. Let’s see how it works:

  • Formula: The formula for calculating compound interest is:
    Compound Interest = Principal Amount × [(1 + Interest Rate)^Number of Compounding Periods – 1].

Example: Let’s say you take out a loan of AED 10,000 from a lender at an annual interest rate of 5% compounded annually for a period of 3 years. To calculate the compound interest, we can apply the formula:

  • Principal Amount = AED 10,000
  • Interest Rate = 5%
  • Number of Compounding Periods = 3 (since it’s compounded annually for 3 years)

Substituting these values into the formula, we get:

  • Compound Interest = 10,000 × [(1 + 0.05)^3 – 1]
  • Compound Interest = 10,000 × [(1.05)^3 – 1]
  • Compound Interest = 10,000 × [1.157625 – 1]
  • Compound Interest = 10,000 × 0.157625
  • Compound Interest = AED 1,576.25

In this example, the compound interest on a loan of AED 10,000 at an annual interest rate of 5% compounded annually for 3 years would be AED 1,576.25. This means that at the end of the loan term, you would need to repay a total of AED 11,576.25 (AED 10,000 principal + AED 1,576.25 interest).

Compound interest calculations take into account the compounding effect, where interest is added to the principal and interest is earned on the accumulated amount over time. This method is commonly used for long-term loans or investments.

Effective Interest Rate Calculation

The effective interest rate takes into account compounding and provides a more accurate representation of the actual interest paid over time. Let’s explore this calculation:

  • Formula: The formula for calculating the effective interest rate is: 
  • Effective Interest Rate = (1 + (Interest Rate / Number of Compounding Periods))^(Number of Compounding Periods) – 1.

Example: Let’s consider a loan with an annual interest rate of 6% compounded quarterly. To calculate the effective interest rate, we can use the formula:

  • Interest Rate = 6%
  • Number of Compounding Periods = 4 (since it’s compounded quarterly)

Substituting these values into the formula, we get:

  • Effective Interest Rate = (1 + (0.06 / 4))^4 – 1
  • Effective Interest Rate = (1 + 0.015)^4 – 1
  • Effective Interest Rate = (1.015)^4 – 1
  • Effective Interest Rate = 1.0614 – 1
  • Effective Interest Rate = 0.0614 or 6.14%

In this example, the effective interest rate on the loan with an annual interest rate of 6% compounded quarterly is 6.14%. This means that over a year, the interest compounds quarterly, resulting in an effective interest rate of 6.14% rather than the stated nominal rate of 6%.

Calculating the effective interest rate is particularly useful when comparing different loan offers or investment opportunities, as it provides a standardised measure for evaluating the true cost or return. It takes into account the compounding frequency and reflects the actual interest paid or earned over time.

Seeking Professional Advice

Professional Advice


If you find the process of calculating interest rates on loans overwhelming or if you have complex loan structures, it’s always a good idea to seek professional advice from financial experts or loan officers. They can guide you through the calculations and provide personalised insights based on your specific circumstances.


In conclusion, understanding how to calculate interest rates on loans in AED is essential for managing your finances effectively. You can easily calculate simple interest by grasping the basics, such as the principal amount and interest rate. Additionally, learning about compound and effective interest rates will give you a more accurate picture of the total amount you’ll have to repay. With this knowledge, you can make informed decisions about borrowing and plan your finances accordingly.

So, remember the steps covered in this guide the next time you come across a loan. Calculate interest rates like a pro and take control of your financial future!

Remember, calculating interest rates on loans doesn’t have to be daunting. With a little practice, it can become second nature to you. So go ahead, crunch those numbers, and make smart financial choices!

About Author

Hanna Rico

About Author

Hanna Mae Rico is a skilled content writer. With a bachelor's degree in English Language Studies, Hanna has spent over three years working in the digital marketing industry. Her versatility shines through her ability to captivate audiences with lifestyle, travel, and other engaging topics. Her love of written words and her innate ability to transport readers to different places make her a true wordsmith.