Quick answer
35x45mm (India/UK/EU) vs 2x2 inch (US)
For most Indian domestic forms (Aadhaar, PAN, UPSC), the UK, and Europe, the standard size is 35mm width by 45mm height (3.5 × 4.5 cm). For US Visas and OCI cards, you need a 2×2 inch (51×51 mm) square photo. For the official India Passport Seva portal upload, you need a different format - a rectangular 630×810 pixel JPEG under 250 KB (which is the 35×45mm portrait ratio, not a square).
Standard Photo Dimensions in India
Not every form uses the same photo size. While "passport size" is a common term, the actual required dimensions can vary based on whether you are uploading a digital photo or printing a physical copy.
| Use Case | Physical Size (mm) | Ratio | Digital Pixels |
|---|---|---|---|
| Standard Indian Forms (Aadhaar, PAN, UPSC) | 35 × 45 mm | 35:45 | 413 × 531 px |
| India Passport Seva Portal (Upload) | 35 × 45 mm (portrait) | 7:9 (Portrait) | 630 × 810 px · max 250 KB |
| US Passport & Visa / OCI Card | 51 × 51 mm (2 × 2 inch) | 1:1 (Square) | 600 × 600 px |
| UK, Europe & Australia Passports | 35 × 45 mm | 35:45 | 413 × 531 px |
| Canadian Passport | 50 × 70 mm | 5:7 | 590 × 826 px |
| i7 Government e-Forms | 35 × 45 mm | 35:45 | 600 × 780 px |
If you need to quickly resize an existing picture to match these exact sizes, you can use our passport size photo maker which has presets for all common Indian dimensions.
What is the Passport Size Photo Ratio?
The aspect ratio is the relationship between the width and height of an image. For the standard 35x45mm Indian passport photo, the ratio is 35:45 (which can be simplified to approximately 7:9).
This means the photo is taller than it is wide, specifically designed to properly frame the applicant's head and upper shoulders. It is crucial to maintain this ratio when resizing a photo digitally; otherwise, the image will appear stretched or squashed, which often leads to form rejection.
Converting Dimensions to Pixels
When uploading a photo to an online portal, the instructions often give a pixel size rather than millimeters. The conversion from millimeters to pixels depends on the DPI (Dots Per Inch) or resolution.
- Print Quality (300 DPI): 35x45 mm equals 413x531 pixels. This is the minimum quality needed if the photo will eventually be printed onto an ID card.
- Web Quality (96 DPI): 35x45 mm equals 132x170 pixels. This is often too small for modern forms.
- Custom Portal Sizes: Many government websites specify their own pixel requirements, such as 350x450 pixels or 630x810 pixels.
Instead of struggling with manual math calculations or complex photo editing software, the easiest method is to use a dedicated tool like the 35x45 mm photo maker which handles the cropping and pixel conversion automatically.
Create exact passport photo dimensions
Don't risk form rejection due to incorrect photo sizes. Upload your photo and our tool will automatically crop it to the standard 35x45mm ratio.
Open Passport Photo MakerFrequently Asked Questions
What is the correct passport size photo dimension in India?
The standard passport size photo dimension in India is 35mm width by 45mm height (3.5 cm x 4.5 cm). This exact size is used for Aadhaar updates, PAN card applications, UPSC/SSC exams and most state government ID forms.
What is the passport size photo ratio?
The standard aspect ratio is 35:45, which simplifies to approximately 7:9. This means the image is taller than it is wide, so it frames the full head and upper shoulders correctly.
What are passport size photo dimensions in pixels?
At a standard print resolution of 300 DPI, a 35x45mm photo equals 413 x 531 pixels. Always check your specific online application first, though - some portals ask for custom digital dimensions like 350x450 or 630x810 pixels instead.
Is 35x45 mm the same as 2x2 inches?
No. A 35x45 mm photo is rectangular, while a 2x2 inch photo (51x51 mm) is a perfect square. 35x45 mm is the standard for Indian domestic forms. The 2x2 inch square (51x51 mm) is used for US visas and OCI cards - but NOT for India Passport Seva online applications. Passport Seva's online portal requires a rectangular 630×810 pixel JPEG, which maintains the 35x45mm portrait ratio.
How can I convert a photo to the exact passport size dimensions?
Use the free Passport Size Photo Maker. Upload a clear photo, select the 35x45mm preset from the size dropdown, and the tool crops and formats it to the exact dimensions automatically.
What DPI should a passport photo be?
A passport photo must be at least 300 DPI (dots per inch) for clean, unpixelated printing. For high-end photo studio prints, 600 DPI is ideal. Never print at 72 DPI, which is intended solely for on-screen web display.
What is 35×45 mm photo size in inches?
In inches, a 35×45 mm passport photo measures approximately 1.38 inches wide by 1.77 inches high (exact conversion: 1.378 × 1.772 inches).
What is 35×45 mm in pixels at 300 DPI vs 600 DPI?
At 300 DPI, 35×45 mm equals 413 × 531 pixels. At 600 DPI (ultra-high resolution studio print), it equals 827 × 1063 pixels.
Written by
Shrikant Yadav
Website Developer, Photocopywala
Shrikant Yadav writes practical Photocopywala guides for photo tools, PDF tools, document preparation, printable resources, government-link safety and online form help for Indian students, job seekers, shop owners and everyday users.