# APY Calculator

> Convert an Annual Percentage Rate (APR) to Annual Percentage Yield (APY) based on compounding frequency.

Page: https://askcalculators.com/calculator/apy-calculator/
Definition: https://askcalculators.com/calculator/apy-calculator/definition.json
JSON Schema: https://askcalculators.com/calculator/apy-calculator/schema.json
Version: 7.0.0
Maintained by: AskCalculators (software project; not a credentialed reviewer)
Qualified review: pending. Automated checks do not establish professional approval.
Page status: Live
Review status: Pending

## Use
Open the calculator page and enter values. Query-string parameters can restore and bookmark a calculation.
Example: https://askcalculators.com/calculator/apy-calculator/?rate=5&frequency=monthly

## Inputs
- rate: Interest Rate (APR); type=number; optional; default=5
- frequency: Frequency; type=text; optional; default=monthly

## Outputs
- result: Result; format=text; primary

## Formula
APY = (1 + nominal annual rate ÷ compounds per year)^(compounds per year) − 1.

## Rules
- Empty optional inputs are undefined, not zero.
- Hidden conditional inputs are ignored.
- Do not invent missing required inputs.