Whether you are applying for a visa, submitting a resume, or registering for an exam, getting the ID photo size right is the detail that trips people up most often. One-inch, two-inch, small one-inch, large one-inch — what is the actual difference, and how many pixels do you need? This guide brings together the most up-to-date 2024 ID photo dimensions in a single reference table.
Common ID Photo Size Reference Table
The most widely used ID photos fall into four sizes, each with distinct millimeter dimensions, pixel resolutions, and intended use cases. Save the table below and check it before your next application:
| Name | Dimensions (mm) | Pixels (300 DPI) | Common Use Cases |
|---|---|---|---|
| One-inch | 25×35mm | 295×413px | Driver license, graduation cert, work badge |
| Two-inch | 35×49mm | 413×579px | Resume, passport application, degree cert |
| Small one-inch | 22×32mm | 260×378px | Driver license, ID card, travel permit |
| Large one-inch | 33×48mm | 390×567px | Passport, visa, social security card |
Tip: Pixel values are calculated at 300 DPI (300 pixels per inch), the standard print resolution used by photo studios. For electronic uploads, some systems accept 72 or 96 DPI, but the file dimensions should stay the same.
One-Inch Photo (25×35mm)
The one-inch photo is the most frequently used ID photo specification, covering nearly all everyday documents. It measures 295×413px and typically uses a blue or white background. It is common for driver licenses, graduation certificates, work badges, and medical insurance cards. The “standard” one-inch usually means a blue background, though some documents require red or white — always confirm before you apply.
Two-Inch Photo (35×49mm)
Slightly larger than the one-inch, the two-inch photo is used when clearer facial detail is required. At 413×579px, it appears on resumes, passport applications, degree certificates, and marriage certificates. For job applications, white or blue backgrounds look the most professional.
Pixel Requirements by Document Type
Different documents have specific pixel and resolution requirements. Too few pixels and your photo fails review; too many and the file is too large to upload. Here are the mainstream standards:
Chinese ID Photo Pixel Standards
- National ID card: 358×441px, 350 DPI, white background
- Social security card: 358×441px, 350 DPI, white background
- Passport: 390×567px, 300 DPI, white background
- Driver license: 260×378px (small one-inch), white or blue background
Visa Photo Pixel Standards (Popular Countries)
- US visa (DS-160): 600×600px, square, white background, 51×51mm
- Japan visa: 413×531px, white background, 35×45mm
- Schengen visa: 413×531px, white background, 35×45mm
- South Korea visa: 413×531px, white background, 35×45mm
For country-specific details, see our Japan visa photo guide and US visa photo guide.
How to Make a Compliant ID Photo Online
The traditional approach — visiting a photo studio — costs time and money. With AI tools you can produce a compliant ID photo at home in about 3 seconds. Here is the full workflow:
Online Creation Steps
- Upload a photo: Choose a front-facing, well-lit selfie. The background does not matter — AI removes it automatically.
- Pick a size: Select one-inch, two-inch, small one-inch, large one-inch, or any country-specific visa spec. The system crops to the exact pixel count.
- Choose a background: Switch freely between white, blue, and red to match different document requirements.
- Download the result: Export a high-definition, watermark-free electronic file. A print layout (8 one-inch photos on a 6-inch sheet) is also available for printing at a shop.
Advantages of AI ID Photo Tools
- Free trial: 3 free generations per day, no payment required to get started
- Privacy safe: Images are processed locally in your browser, never uploaded to a server, and discarded after use
- Multi-spec output: One upload generates multiple sizes from one-inch to visa photos
- Smart retouching: AI auto-adjusts face position, lighting, and background more consistently than manual editing
Frequently Asked Questions
Q: Can I take my own ID photo? Yes. Use your phone’s rear camera in natural light for a front-facing shot, then run it through the AI ID photo tool for automatic background removal, cropping, and replacement. The result rivals a studio photo.
Q: What should I wear for an ID photo? Wear dark, collared clothing. Avoid white (it blends into a white background) and busy patterns. Do not wear uniforms such as military or police attire.
Q: Is there a file size limit for electronic ID photos? Most registration systems require JPG format between 30KB and 200KB. Use the image compressor to shrink file size while keeping the image sharp.
Q: Can I convert between one-inch and two-inch photos? You cannot simply scale one into the other because the crop ratios differ. The correct approach is to upload the original photo and select each size separately in the AI tool — it re-crops according to each standard.
If you need an ID photo, try the AI ID photo tool now. It generates compliant photos in 3 seconds, supports one-inch, two-inch, and 500+ visa specs, and is free to try.
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