What does it mean to have a fixed interest rate?

Having a fixed interest rate means that the rate will remain constant over the life of the loan or investment, regardless of market fluctuations or changes in interest rates by financial institutions. This provides borrowers with predictable monthly payments, making it easier to budget and plan for the future. With a fixed rate, the interest charged on the principal amount does not change, giving the borrower stability as they can rely on that rate throughout the duration of the loan. This contrasts with variable or adjustable rates, which can change periodically based on market conditions, leading to potentially higher payments over time.