APY Calculator

Frequently Asked Questions

What is APY and how does it differ from APR?

APY (Annual Percentage Yield) reflects the actual return earned in a year, accounting for compounding. APR (Annual Percentage Rate) is the nominal rate without compounding. For savings accounts, APY is the number that matters. For loans, APR is used and does not include compounding within the year.

Why does compounding frequency affect APY?

More frequent compounding means interest is calculated on a growing balance more often. Daily compounding earns slightly more than monthly compounding at the same nominal rate. The difference is small at low rates but grows at higher rates.

How do I calculate APY from a nominal rate?

APY = (1 + r/n)^n − 1, where r is the nominal annual rate (as a decimal) and n is the number of compounding periods per year. For a 5% rate compounded monthly: APY = (1 + 0.05/12)^12 − 1 ≈ 5.116%.

What APY should I expect on a high-yield savings account?

As of early 2026, competitive high-yield savings accounts offer 4.0–5.0% APY. Online banks typically offer higher rates than traditional brick-and-mortar banks due to lower overhead. Always compare APY (not just advertised rate) when choosing between accounts.

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