UK Passport Photo Size & Requirements: The Complete 2026 Guide

Navigating the HM Passport Office (HMPO) requirements can be tricky. Whether you are renewing your British passport online or via post, the photo must meet exact biometric standards. In 2026, the digital upload system is more sophisticated than ever, making precise cropping essential.

1. UK Passport Photo Measurements (mm & cm)

The standard size for a UK passport photo is 35mm wide by 45mm high. In centimeters, this is 3.5cm x 4.5cm. Unlike the US square format, the UK uses a rectangular portrait orientation. If you are using a digital photo for an online application, it must be at least 600 pixels wide by 750 pixels tall, and the file size must be between 50KB and 10MB.

2. Background: Cream or Light Grey

One of the most unique aspects of the UK requirement is the background color. While many countries demand pure white, the UK government specifies a plain, light-colored background—ideally cream or light grey. Pure white is often accepted but can sometimes cause issues with contrast if your hair or clothing is too light.

3. Biometric Positioning

Your head must be between 29mm and 34mm from the top of the head to the chin. You must face forward and look straight at the camera with a neutral expression. While the UK is slightly more lenient than others regarding 'natural' expressions, it is highly recommended not to show teeth.

Summary of UK Specifications

• •Size: 35x45 mm (3.5x4.5 cm)
• •Background: Cream or Light Grey
• •Head Height: 29mm - 34mm
• •Eyes: Open and clearly visible
• •Glasses: No glare, eyes must be visible (removal recommended)
• •Digital Format: JPEG or PNG