Guide type: Compare options

APR vs APY in Plain English

APR is the simple yearly quote you hear for loans; APY tells you what you effectively earn or pay when compounding is included. Learn when each label shows up and how to compare products fairly.

Updated 2026-04-05 • Author: CalcDock Team • Reviewed by: CalcDock Team

This guide is for educational purposes and is not financial, legal, or medical advice.

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APR (loans and simple annual quotes)

APR often describes the yearly cost of borrowing without assuming intra-year compounding in the headline number. For loans, APR may also bundle certain fees — read disclosures.

APY (savings and compounded growth)

APY answers: “What do I end up with after a year if interest compounds?” It is higher than the nominal APR when compounding happens more than once per year (for positive rates).

Quick comparison rule

For deposits, compare APY to APY. For loans, compare APR to APR from the same regulatory definition. Mixing APY from a savings account with APR from a loan is not apples-to-apples.

Frequently Asked Questions

Which is “bigger,” APR or APY?

For the same positive nominal rate, APY ≥ APR when compounding exists. They can match when compounding is annual only.

Does my credit card use APR or APY?

Cards usually quote APR, but balances can compound daily — effective cost can resemble an APY-style effect.

Related Calculators

Compound Interest Loan Calculator Mortgage Calculator

Related guides

Understanding Compound Interest (APR, APY, Compounding Frequency) — Learn how compound interest grows your money, how APR differs from APY, and why compounding frequency matters less than time and rate.
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Compounding Frequency: When It Matters (and When It Doesn’t) — Monthly vs daily compounding provides small differences compared to time and rate. Know when the frequency choice is material.
Savings Goal Planning: How Much Per Month to Reach Your Target — Translate a future savings target into a realistic monthly contribution using compound growth assumptions.
Inflation and Real Return: See Your Money in Today’s Terms — Nominal returns ignore inflation. Estimate purchasing-power growth by subtracting expected inflation to get a real rate.
Debt-to-Income (DTI): What Lenders Look At Beyond the Payment — Understand how monthly debt payments compare to income, why DTI matters for mortgages and loans, and how it differs from a simple payment calculator result.
How Your Loan Payment Is Actually Calculated (Step by Step) — See how a fixed monthly payment splits into interest vs principal each month, why early payments are interest-heavy, and how the standard amortization formula fits together.
Loan Repayment Methods: Equal Payment vs. Equal Principal — Compare amortization methods, interest impact, and monthly payment profiles to pick a plan that fits your cash flow.
Mortgage Total Cost: Beyond Principal and Interest — Understand the full monthly cost of home ownership: taxes, insurance, PMI, and how they affect affordability.
Early Repayment Effects: Save Interest and Shorten Term — See how extra principal payments reduce total interest and loan term, and when prepayment penalties apply.
Variable Rate Risks: What Changes When Rates Move — Understand how variable-rate loans can increase payments and total cost, and ways to stress-test scenarios.
Loan Comparison Checklist: Apples-to-Apples Evaluation — A simple list to compare loans fairly: APR, fees, term, compounding, and early repayment terms.

Sources & References

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