What is the difference between real interest rate and nominal interest rate?

Introduction: The World of Interest Rates

Hello everyone! Today, we’re diving into the intriguing world of interest rates. You may have heard of terms like ‘real interest rate’ and ‘nominal interest rate.’ But what do they really mean? Let’s find out!

Defining Nominal Interest Rate

The nominal interest rate is the rate at which your money grows over a specific period, without accounting for inflation. It’s the interest rate you see on loan or deposit agreements. For instance, if you have a savings account with a 5% nominal interest rate, your money will grow by 5% annually.

Understanding Real Interest Rate

While the nominal interest rate tells you the growth rate of your money, it doesn’t consider the changing purchasing power due to inflation. That’s where the real interest rate comes in. It’s the rate at which your purchasing power increases or decreases after accounting for inflation. It reflects the ‘real’ growth of your money.

The Role of Inflation

Inflation, the general increase in prices, erodes the value of money over time. Let’s say you have a loan with a 10% nominal interest rate, but inflation is at 5%. In this case, your real interest rate would be 5%, as the 10% growth is offset by the 5% increase in prices.

Significance in Financial Decisions

Understanding the difference between real and nominal interest rates is crucial when making financial decisions. For example, when investing, you’d want your returns to exceed the inflation rate, ensuring real growth. Similarly, when borrowing, you’d consider the real interest rate to assess the actual cost of the loan.