Simple interest

I = P × r × t, plus the total amount due.

Runs on your deviceFreeNo account

How to use Simple interest

Open Simple interest. I = P × r × t, plus the total amount due. Set the options, then copy or download. Files and text stay on your device. Built for phones and desktops.

Open the tool

Use the workspace below — no signup is required.

Enter your input

Open Simple interest. I = P × r × t, plus the total amount due. Set the options, then copy or download. Files and text stay on your device. Built for phones and desktops.

Copy the result

Copy text or download a file when the tool offers an export. Local tools keep processing in this tab.

Direct share: Install Omnipus as an app on Android to share files and links into this tool from other apps.

About this tool

I = P × r × t, plus the total amount due. For short loans that do not compound. Simple interest on Omnipus runs in this tab with no upload. No account, watermark, or daily cap.

#simple interest calculator

Related guides

Reading a privacy badge on Omnipus
What “Runs on your device”, “Fetches a public URL”, and “Uses a public rates API” mean in practice.

Frequently Asked Questions

Is Simple interest free?

Yes. Omnipus tools have no signup, watermark, or conversion quota.

Do you upload my data?

No. Processing stays in your browser.

Will this work on my phone?

Yes. Controls are stacked, tap targets are large, and the search header stays on one row.

Is Simple interest completely free to use?

Yes. Simple interest on Omnipus is free to use with no subscription paywall for the tool itself.

Are my files or data uploaded to any servers?

No. Simple interest processes your input locally in this browser tab. Your files and text are not sent to Omnipus. Some tools download an engine or model file the first time you use them; that is a download, not an upload.

Can I use Simple interest on my mobile phone?

Yes. Omnipus has touch-friendly controls and can be installed as an app. On Android you can also share files or links into tools from other apps.

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