---
type: faq
title: "What size is an A8 envelope?"
description: "An A8 envelope measures 5 1/2 x 8 1/8 inches (5.5 x 8.125), with the flap on the 8 1/8 inch side. A8 fits invitations and cards up to roughly 5 1/4 x 7 7/8"
resource: https://www.4over4.com/faqs/business-stationery/what-size-is-an-a8-envelope
tags: ["Business Stationery", "faq"]
timestamp: 2026-07-20T18:54:40.856Z
---

# What size is an A8 envelope?

An A8 envelope measures 5 1/2 x 8 1/8 inches (5.5 x 8.125), with the flap on the 8 1/8 inch side. A8 fits invitations and cards up to roughly 5 1/4 x 7 7/8

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

- Page type: faq
- Hub: Business Stationery
- URL: https://www.4over4.com/faqs/business-stationery/what-size-is-an-a8-envelope