Interest Rate Converter

Convert between daily, monthly and annual rates (nominal / effective) in LocalKit. Compare APRs locally—inputs stay in your browser with nothing uploaded.

Interactive controls load with JavaScript. Processing stays in your browser—nothing is uploaded.

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How to use

  1. Open the tool — Open this LocalKit page and wait for the interactive controls to load.
  2. Provide input — Paste or type your content (or set options). Data stays in the browser.
  3. Run the action — Use the primary button or live controls to generate the result.
  4. Copy the result — Copy the output into your editor, terminal, or documents.

Limits

Requires JavaScript. Extremely large inputs may slow the browser tab. Results depend on your browser APIs; there is no server-side processing quota because nothing is uploaded.

When to use

When you want a quick, free utility without creating an account or sending content to an online converter.

When not to use

When you need server-side integration, batch automation at scale, or certified compliance tooling.

Privacy note

Tool inputs are processed in your browser only. Theme, language and favorites may use localStorage; hosting may keep standard access logs (IP, UA, URL) without tool payloads.

FAQ（5）

Nominal vs effective?

Nominal scales by period count; effective compounds within the year (EAR).

Day count?

Daily uses 365 for a simple estimate.

APR vs EAR?

APR is often quoted nominally; EAR reflects compounding.

For savings or loans?

Both — verify the product’s compounding convention.

Uploaded?

No.