3x4cm Photo Maker
Create 3×4cm ID photos for resumes, ID cards, and licenses. Free, instant, no signup.
What is a 3x4cm Photo?
A 3x4cm photo (30mm × 40mm) is a standard ID photo size used primarily in Asian countries. It's slightly smaller than the international passport photo size (35x45mm) and is commonly required for resumes, ID cards, and various official documents.
Common Uses for 3x4cm Photos
| Document | Size | Region/Use |
|---|---|---|
| Resume/CV Photo | 3×4cm | Korea, Japan |
| National ID Card | 3×4cm | Various countries |
| Driver License | 3×4cm | Korea, Japan |
| Student ID | 3×4cm | Universities, Schools |
| Membership Cards | 3×4cm | Libraries, Gyms |
| Certificate Applications | 3×4cm | Exams, Licenses |
3x4cm vs Other Photo Sizes
Related Photo Guides
| Document | Size | Guide |
|---|---|---|
| Korean Resume Photo | 3×4cm | View guide → |
| Korean Passport Photo | 35×45mm | View guide → |
| Japanese Passport Photo | 35×45mm | View guide → |
This tool only crops to 3×4cm
For official passport and visa photos, you also need:
- White or light gray background — Original background removed
- Correct head size — Face must be 70-80% of frame height
- Compliance validation — Automatic checks before submission
Frequently Asked Questions
What is a 3x4cm photo?
A 3x4cm photo (also written as 30x40mm) is a rectangular ID photo measuring 3 centimeters wide by 4 centimeters tall. This size is commonly used for resumes, ID cards, and driver licenses in many Asian countries including South Korea, Japan, and others.
How many pixels is a 3x4cm photo?
At 300 DPI (print quality), a 3x4cm photo is 354×472 pixels. For higher quality prints, 600 DPI gives you 709×945 pixels. Our tool outputs at 300 DPI which meets all standard printing requirements.
What is 3x4cm used for?
The 3x4cm size is used for: resume/CV photos in Korea and Japan, national ID cards, driver licenses, student IDs, membership cards, and various certificate applications. It's sometimes called "half business card size" in Asia.
What's the difference between 3x4cm and 35x45mm?
3x4cm (30x40mm) is slightly smaller than 35x45mm. The 3x4cm size is typically used for ID cards and resumes, while 35x45mm (3.5x4.5cm) is the international passport photo standard used by most countries.
Is this tool free?
Yes, completely free. This tool only crops your photo to 3x4cm dimensions. For official passport photos that require background removal and compliance checking, use our $1 passport photo tool.
Can I use this for passport photos?
No, passport photos typically require 35x45mm (3.5x4.5cm) dimensions, not 3x4cm. They also need white background and specific head positioning. Use our passport photo tool for those requirements.