Is the envelope size & postage helper free?
Yes. You can use it without creating an account or entering payment information.
Envelope Size & Postage Helper — No Signup Needed
Compare common envelope sizes and mailing basics. It works directly in this browser, with no account and nothing to install.
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Private by design: this tool works on your device. Your information is not uploaded.
How to use this envelope size & postage helper
- Enter or choose the information requested in the tool.
- Select the main button to create or calculate your result.
- Review, copy, download, or print the result as needed.
Common questions
Do I need to install anything?
No. The tool works in a modern web browser on a phone, tablet, or computer.
Is my information saved?
No. Your entries are handled in your browser and are not saved by this site.