Print Calculators

EDDM size checker for USPS routes

Confirm EDDM postcard sizes, mailing indicia placement, and bundle counts so every drop is compliant. Use it free online — or upload files for free Human + AI review by our prepress team.

EDDM postcard sizesUSPS templatesretail vs bmeuflat and lettersize thresholdsmailing indiciabundle countspaper weightprepress checklistmail ready files

Artwork width (in)

Artwork height (in)

Free Human + AI option

Not ready to trust the tool alone?

This EDDM utility is 100% free in your browser. If you want our prepress team to run the same job manually — with AI assistance — upload your files and we will review and email you back at no charge.

Upload PDFs, images, spreadsheets, or screenshots of your results
Ask for Human + AI help with this exact task in the notes
Get a manual check plus AI-assisted fixes before you print

Request Human + AI help with this task Free Human + AI design services

How to use this tool

Pick your route type Select USPS retail or BMEU to see allowed size thresholds.
Enter dimensions Check flat and letter specs using official USPS templates.
Export mail ready files Download a prepress checklist and bundle counts for drop-off.
Optional: request free Human + AI help Prefer a real prepress review? Upload your files and note “EDDM” — our team will run the same task manually with AI assistance and email you back at no charge.

Every step above can also be handled by our team — use the Human + AI upload button if you prefer personal assistance.

Stay inside USPS rules

The EDDM size checker compares EDDM postcard sizes against size thresholds for retail vs BMEU, keeping you inside flat and letter limits.

It flags mailing indicia placement and paper weight suggestions so mail ready files move through acceptance quickly.

Plan bundles and routes

Calculate bundle counts and print labels, then use the address list formatter to clean your delivery data.

Pair with the cost per piece calculator to confirm budgets.

Hand off to production

Add results to your prepress checklist, send art through the file uploader, or order EDDM postcards right away.

Free online — or free Human + AI assistance

This page runs entirely in your browser at no cost. If you prefer a second set of eyes, email or upload your files through our complimentary file uploader and ask for Human + AI help with EDDM. Our team will perform the same task manually, use AI where it helps, and send proof-ready feedback — also free.

Need broader design support? See our free Human + AI design services.

Frequently asked questions

What sizes qualify for EDDM?

The tool lists allowed flats and letters and warns if you fall outside USPS thresholds.

Do I need a mailing indicia?

Yes, place the indicia correctly; the checker shows the safe zone for it.

How many pieces per bundle?

Most routes need 50-piece bundles; the calculator shows exact bundle counts.

Should I adjust paper weight?

Heavier paper weight can boost response; verify it still meets USPS thickness rules.

Can your team do this for me instead of using the online tool?

Yes. The browser tool is free and private, but if you would rather not rely on it alone, upload your files via our complimentary file uploader and request Human + AI help with “EDDM”. Our prepress team will review manually — with AI assistance — and reply for free.

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