---
type: faq
title: "What's the difference between US Letter and A4 flyer sizes?"
description: "US Letter and A4 are the two most common flyer sizes, and they are close but not identical. US Letter measures 8.5' x 11' while A4 measures 8.27' x 11.7',"
resource: https://www.4over4.com/faqs/flyers/what-s-the-difference-between-us-letter-and-a4-flyer-sizes
tags: ["Marketing Materials", "faq"]
timestamp: 2026-07-20T18:54:40.856Z
---

# What's the difference between US Letter and A4 flyer sizes?

US Letter and A4 are the two most common flyer sizes, and they are close but not identical. US Letter measures 8.5' x 11' while A4 measures 8.27' x 11.7',

Part of the **Marketing Materials** hub. See [all faq concepts](index.md).

- Page type: faq
- Hub: Marketing Materials
- URL: https://www.4over4.com/faqs/flyers/what-s-the-difference-between-us-letter-and-a4-flyer-sizes