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Savings Interest Calculator - APY & Growth

Free savings interest calculator. Calculate how your savings will grow with compound interest. Compare APY rates and compounding frequencies.

Calculate your savings growth

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Savings Interest Calculator

See how your savings grow with compound interest. Compare different rates and compounding frequencies to maximize returns.

A = P(1 + r/n)^(nt) + PMT × [((1 + r/n)^(nt) - 1) / (r/n)]

Where P = principal, r = rate, n = compounds/year, t = years, PMT = monthly payment. More frequent compounding = more growth.

What's the difference between APR and APY?

APR is the stated rate. APY includes compounding effect. APY is always equal or higher. Compare accounts using APY.

Which compounding frequency is best?

Daily compounding yields the most. At 4% APR: Daily APY = 4.08%, Monthly APY = 4.07%, Annual APY = 4.00%.

Compound Interest Calculator

General compound interest

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