Free Online Exam & Passport Photo Resizer (cm, mm, in, px)
Resize photos for competitive exams (UPSC, SSC, Banking, NEET, Visa) to exact cm, mm, inch, or pixel dimensions (3.5x4.5cm, 200x230px) with target KB control.
1. Select Exam Preset or Custom Size
2. Upload & Crop Photo
Key Features & Specifications
- Multi-Unit Support: switch between Centimeters (cm), Millimeters (mm), Inches (in), and Pixels (px)
- 1-Click Exam Presets: UPSC, SSC CGL, IBPS Bank, NEET/JEE, and US/Schengen Visa
- Target KB Compression: strictly constrain output to 20KB–50KB or custom limit
- Face Guide Crop Overlay: align head and shoulders to official biometric standards
- 100% In-Browser Privacy: your personal photos never leave your device
Official Exam Photo Dimensions & Guidelines (UPSC, SSC, IBPS, NEET)
Online application portals for competitive exams enforce strict biometric photo upload specifications. Automated server-side screening scripts immediately reject submissions that deviate in dimension, file size (KB), or aspect ratio. OmniTools Exam Photo Resizer lets you convert any camera photo to exact centimeters, millimeters, inches, or pixels with official presets for all major national exams.
| Examination / Portal | Official Dimensions | File Size Limit | Format / DPI |
|---|---|---|---|
| UPSC Civil Services / NDA | 3.5 cm × 4.5 cm (200 × 230 px) | 20 KB – 50 KB | JPG (200 DPI minimum) |
| SSC CGL / CHSL / MTS | 3.5 cm × 4.5 cm (200 × 230 px) | 20 KB – 50 KB | JPG with Name & DOP Banner |
| IBPS / SBI Bank PO & Clerk | 200 × 230 pixels | 20 KB – 50 KB | JPG (200 DPI recommended) |
| NTA NEET / JEE Main | 3.5 cm × 4.5 cm (100 × 120 px min) | 10 KB – 200 KB | JPG with 80% face coverage |
| US / International Visa | 2 × 2 inches (51 × 51 mm) | 600 × 600 px min | JPG (300 DPI, white background) |
Converting Real-World Units (cm, mm, in) to Digital Pixels
Physical measurements on paper (like 3.5 cm × 4.5 cm) translate to digital pixels based on the resolution DPI. At standard 200 DPI resolution, 3.5 cm = 276 pixels and 4.5 cm = 354 pixels. OmniTools calculates exact pixel matrices across all unit systems automatically.
Guaranteed Target KB File Size Without Quality Loss
Instead of manually guessing compression percentages, our binary-search optimizer automatically tests multiple quality levels to generate an output strictly below your required KB ceiling.
- Ensure 70% to 80% of the image frame is occupied by your face and shoulders.
- Use a plain white or light-colored background for passport and visa uploads.
- Set the Target KB slider to 40 KB for guaranteed acceptance on 20–50 KB portals.
How to Use Exam & Passport Photo Resizer
Follow these easy steps to process your files in seconds.
Step 1
Upload your photo or passport scan from your device.
Step 2
Select your exam preset (e.g. UPSC 3.5x4.5 cm) or enter custom width, height, and unit.
Step 3
Adjust the crop box using the face guide overlay and set your target file size in KB.
Step 4
Click "Generate & Download" to get your exam-compliant JPG instantly.
Frequently Asked Questions
Common questions about usage, privacy, and file limits.
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