What's the difference between APR and APY?

APR is the simple annual rate without compounding. APY is the effective annual yield after compounding. A 12% APR compounded monthly yields about 12.68% APY — that extra 0.68% comes purely from compounding.

Which compounding frequency should I use?

Match the protocol's actual frequency. Most DeFi lending platforms compound per-block (effectively continuous or every few seconds). Traditional banks usually compound daily or monthly. Staking often compounds daily.

Why does my DeFi protocol show a different APY than this tool?

Some protocols quote APR (no compounding), some quote APY (compounded), and some use different rates or reward tokens. Always check the protocol's docs for the exact rate basis and frequency.

Is there a maximum rate I can enter?

No hard limit — but rates above 1,000% are usually a sign of a typo, a scam, or an extremely volatile farm. Always sanity-check inputs.

Does this account for fees or token price changes?

No. This is a pure rate conversion. Real-world returns also depend on gas fees, performance fees, impermanent loss, and the price of reward tokens.

Are my inputs stored anywhere?

No. Everything is computed locally in your browser. Refresh the page and the values reset.

APY ↔ APR Converter

Convert Annual Percentage Rate to Annual Percentage Yield and back — DeFi-grade precision.

100% private — no uploads Free & unlimited Read tutorial

See how it works

Watch a quick simulation of this tool in action — no file needed.

How to use APY ↔ APR Converter

Follow these steps — everything happens instantly in your browser.

1
Step 1. Pick the direction: APR → APY or APY → APR.
2
Step 2. Enter the source rate as a percentage (e.g. 12 for 12%).
3
Step 3. Choose the compounding frequency (daily, weekly, monthly, quarterly, annually).
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Step 4. Read the converted rate and the effective yield difference instantly.

Why use this tool

Private by design

All processing happens locally in your browser. Open DevTools → Network and you'll see zero file uploads. Ever.

Instant

No upload wait, no queue, no server round-trip. Results appear the moment you drop a file.

Free & unlimited

No accounts, no watermarks, no daily caps. Use it as many times as you like, forever.

Works everywhere

Desktop, tablet or phone — every tool is responsive and installable as a PWA for offline use.

Frequently asked questions

Everything you might want to know about apy ↔ apr converter.

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Want to learn more?

Read our complete APY ↔ APR Converter tutorial with tips, use cases, and FAQs.