Economicscalendar_todayLast updated: Apr 2026

What is Interest Rate?

/ˈɪntrɪst reɪt/

An interest rate is the cost of borrowing money, expressed as a percentage of the loan amount per year. Central banks set base rates that influence all lending in an economy.
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Everyday Example

If you borrow £1,000 at a 5% annual interest rate, you owe £50 in interest after one year on top of repaying the £1,000.

publicReal-World Application

When the Bank of England raised rates to 5.25% in 2023, millions of UK mortgage holders saw their monthly payments jump significantly.
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Did you know?

The concept of interest dates back 5,000 years to ancient Mesopotamia, where temples charged interest on grain loans.

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Key Insight

Interest rates are the lever that central banks pull to cool inflation (raise rates) or stimulate growth (cut rates). Every financial decision is affected by them.

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