ID Photo Size Lookup

ID Photo Size Lookup: Core Features & Principles

Do you often struggle with exact photo size requirements when applying for various documents? The ID Photo Size Lookup provides a comprehensive reference chart for standard ID photo dimensions. It covers common specifications such as 1-inch, 2-inch, small 1-inch, large 1-inch, passport, visa, and national ID photos. By accurately displaying width, height, and pixel parameters, it helps you easily create compliant ID photos and avoid rejections due to incorrect sizing.

Why Choose Our ID Photo Size Lookup?

• Comprehensive Size Coverage: Includes dozens of domestic and international ID photo specifications, such as national IDs, passports, driver's licenses, travel permits, and various country visas.
• Detailed Parameters: Each size provides dimensions in millimeters, centimeters, and pixels (based on 300 DPI), along with applicable scenarios at a glance.
• Instant Lookup, No Calculations Needed: Simply select the document type or browse the size list to view all information instantly with zero learning curve.

How to Use This Tool

1. Open the ID Photo Size Lookup page.
2. Browse the "Common ID Photo Size Reference Chart" or use the filter to select your required document type (e.g., "Passport" or "1-inch").
3. Check the corresponding width (mm), height (mm), and pixel resolution (px) for the required photo. For example: A standard 1-inch photo measures 25mm × 35mm, with a pixel size of 295px × 413px (at 300 DPI).
4. Record the size parameters based on your needs for photo creation or cropping.

Example Input: Select "Chinese Passport". Output: Photo size 33mm × 48mm, pixels 390px × 567px.

Frequently Asked Questions (FAQ)

• Q: What is the pixel size of a 1-inch photo?
  A: A standard 1-inch photo (25mm × 35mm) at 300 DPI resolution is 295px × 413px.
• Q: Why do pixel sizes vary for the same 1-inch photo?
  A: Pixel size depends on the print or display resolution. While 300 DPI is the standard baseline, different agencies may have slight variations in their requirements. This tool provides universal standard values, but we recommend verifying with the specific issuing agency.

Important Notes

The ID photo dimensions provided by this tool are based on common public standards and are for reference only. For actual applications, please refer to the latest requirements from the official issuing agency. When processing photos, pay attention to other regulations such as background color and portrait proportions. This tool is strictly for size lookup and does not involve uploading any private user data, so you can use it with confidence. If the size display appears abnormal, please refresh the page or check your browser's zoom settings.

Technical Notes & Pro Tips

The digital pixel calculation for ID photos is based on physical dimensions and print DPI (Dots Per Inch). The formula is: Pixels = (Size in mm ÷ 25.4) × DPI. The common standard is 300 DPI, where 1 centimeter ≈ 118 pixels. For example, a 2-inch photo measuring 3.5cm × 5.3cm translates to 413px × 626px. When using this tool, you can directly set your canvas size in software like Photoshop based on the output data. We recommend saving presets for frequently used sizes to improve your workflow efficiency.