APY Calculator | Savings APY, APR vs APY & Comparison

Convert APR to APY with compounding frequency, project multi-year growth, and compare competing savings offers in one workflow.

When Should You Use This Calculator?

Compare different savings accounts or investment products based on their true annual yield
Understand the impact of compounding frequency on your returns (daily, monthly, quarterly)
Project principal growth over multi-year horizons using Growth mode
Compare two APR/compounding offers side-by-side in Compare mode
Make informed financial decisions by comparing APR vs APY side-by-side

Key Features:

Three modes: Simple conversion, Growth projection, and Offer comparison
APY calculation from APR with daily to annual compounding support
One-year and multi-year principal growth projections
Side-by-side offer comparison with APY delta and better-offer signal

Frequently Asked Questions

What is the difference between APR and APY?

APR (Annual Percentage Rate) is the simple interest rate. APY (Annual Percentage Yield) includes the effect of compound interest, making it a more accurate measure of actual returns.

Can I compare two APY offers and project growth?

Yes. Growth mode estimates multi-year principal growth, and Compare mode shows side-by-side APY outcomes across different APR and compounding assumptions.

Can I export my APY Calculator calculations?

Yes! In guest mode, you can export your calculations to JSON format. Sign in is required for PDF and CSV export. Click the export button to download your results. This is perfect for record-keeping, sharing with others, or importing into other tools.

Does this calculator save my history?

Yes! Your calculation history is automatically saved. Guest users can save up to 50 calculations per workspace locally. Sign in for free to save up to 100 calculations per workspace, with access from any device when logged in.

Is this calculator free to use?

Absolutely! The APY Calculator is completely free with no sign-up required. Create a free account to unlock additional features like more calculation history, multiple workspaces, and the ability to access your saved data from any device.

Related Calculators:

Savings Calculator- Project savings growth quickly in Simple mode, plan contribution or timeline goals, and tune compounding, timing, and inflation assumptions in Advanced mode
Investment Calculator- Estimate investment growth with strategy presets, switch to goal-planning workflows, and refine advanced assumptions for contribution timing, frequency, and
Present Value Calculator- Determine the current worth of future cash distributions using the Time Value of Money concept

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This calculator is part of CalcTrail's collection of professional-grade tools designed for students, professionals, and anyone who needs accurate calculations. Export your results to PDF, JSON, or CSV formats. All calculations are performed client-side for privacy and speed.

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