Pixel to CM Converter Online - Image Resolution Calculator
Welcome to the Photocopywale Pixel to CM Converter. Converting digital image pixels (px) into physical printing units like centimeters (cm), millimeters (mm), and inches (in) has never been easier. Whether you are cropping a passport-size photo for an online government job application form (SSC, UPSC, State PSC, Banking, Railways) or setting up canvas dimensions in Photoshop, our calculator delivers 100% precise conversions based on your required DPI/PPI resolution.
Privacy First: Your document safety is guaranteed. All dimension conversions execute client-side directly within your web browser. None of your entered values or photo specs are ever saved or uploaded to our servers.
Key Features
- Two-Way Conversion: Convert Pixels (PX) to Centimeters (CM) or Centimeters (CM) to Pixels (PX) with one click.
- Multi-Unit Output: View simultaneous converted measurements in CM, MM, Inches, and Pixels.
- DPI Resolution Presets: Instant buttons for 300 DPI (Print Quality), 200 DPI (Online Govt Forms), 96 DPI (Web Display), and custom DPI.
- Indian Govt Photo Presets: Pre-configured dimensions for Passport Photos (3.5x4.5 cm), Signatures (4.5x1.5 cm), Stamp Size, and PVC Cards.
- Visual Dimension Preview Box: Interactive aspect ratio preview box displaying the proportional size of your selected dimensions.
How to Convert Pixels to CM
- Step 1: Select Conversion Mode. Choose "Pixels to CM" or "CM to Pixels".
- Step 2: Input Width and Height. Type your image width and height values into the respective fields.
- Step 3: Choose DPI. Click on 300 DPI for printing, 200 DPI for form uploads, or type a custom DPI.
- Step 4: Copy or Print Specs. Copy the calculated pixel dimensions directly to your photo editor or print out a specification slip.
Common Image Sizes & Pixel Dimensions Table (at 300 DPI)
Quick reference guide for common document photo sizes and pixel measurements:
| Photo / Document Category |
Dimensions in CM / Inches |
Dimensions in Pixels (at 300 DPI) |
Common Usage |
| Indian Passport Photo |
3.5 cm x 4.5 cm (1.38 x 1.77 in) |
413 px x 531 px |
SSC, UPSC, Bank, Passport, Visa Forms |
| Stamp Size Photo |
2.5 cm x 3.0 cm (0.98 x 1.18 in) |
295 px x 354 px |
Service Books, Identity Cards, Admission Forms |
| Standard Signature Scan |
4.5 cm x 1.5 cm (1.77 x 0.59 in) |
531 px x 177 px |
Online Exam Portals, Form Signatures |
| Postcard Size Photo |
10.0 cm x 15.0 cm (4 x 6 inches) |
1181 px x 1772 px |
NEET Admit Card Photo, Photo Albums |
| PVC ID / Aadhaar Card |
8.5 cm x 5.4 cm (3.35 x 2.13 in) |
1004 px x 638 px |
Standard PVC Plastic Card Printing |
Frequently Asked Questions
1. How many pixels are in 1 cm at 300 DPI?
At 300 DPI print quality, 1 cm equals approximately 118.11 pixels.
2. What is the formula to convert Pixels to CM?
Formula: Centimeters = (Pixels * 2.54) / DPI.
3. What is the formula to convert CM to Pixels?
Formula: Pixels = (Centimeters * DPI) / 2.54.
4. What is the pixel size for a 3.5 x 4.5 cm passport photo?
At 300 DPI, a 3.5 cm x 4.5 cm photo equals 413 pixels width by 531 pixels height.
5. Which DPI should I use for online government job uploads?
200 DPI or 300 DPI is standard for Indian government job portals (SSC, UPSC, Banking, Railways).
6. Is this Pixel to CM Converter free?
Yes, 100% free with no daily limits or signups required.
