🏦 Savings Interest Rate Calculator
Calculate how much interest your savings will earn over time, based on your balance, interest rate, and compounding frequency.
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How savings interest is calculated
Savings accounts typically earn compound interest, meaning interest is calculated on both the original balance and any interest already earned.
The formula
Final Balance = P × (1 + r/n)n×t, where P is the principal, r is the annual interest rate, n is the compounding frequency per year, and t is time in years.
This calculator is for general savings-planning education; actual bank rates and compounding methods vary.
Last reviewed August 2026