CM to Pixels Converter
Convert physical dimensions in centimeters to pixel dimensions using resolution (PPI).
Why Convert CM to Pixels?
When preparing images for printing or digital design, it’s often necessary to know how many pixels are required for a specific physical size measured in centimeters. The conversion ensures that your image has the correct resolution and prints at the desired size without distortion.
Formula
Pixels = (Centimeters ÷ 2.54) × PPI
This formula uses the conversion 1 inch = 2.54 cm.
Example Calculation
Suppose you want to print an image that’s 25 × 20 cm at 300 PPI:
- Width = (25 ÷ 2.54) × 300 ≈ 2953 pixels
- Height = (20 ÷ 2.54) × 300 ≈ 2362 pixels
Your image should be approximately 2953 × 2362 pixels for high-quality printing.
Recommended PPI for Printing
| Print Type | Recommended PPI |
|---|---|
| Large Posters | 150 PPI |
| Standard Office Prints | 200 PPI |
| High-Quality Photos | 300 PPI |
| Fine Art Prints | 300–600 PPI |
Use Cases
- Graphic Design: Create posters, brochures, and banners with exact pixel requirements.
- Photography: Ensure your photos print at precise sizes in cm.
- Print Shops: Match customer requirements with accurate pixel dimensions.
- Education: Students preparing projects requiring both pixel and cm dimensions.
FAQs
What if I don’t know the PPI?
Use 300 PPI for high-quality prints. For posters or large banners viewed from a distance, 150 PPI may be sufficient.
Can I increase PPI to make my image sharper?
No. Increasing PPI without adding pixels won’t improve sharpness. The source image must have enough resolution.
Is there a difference between DPI and PPI?
Yes. PPI measures pixels per inch (image resolution), while DPI measures printed dots per inch. For conversions, use PPI.
Conclusion
The CM to Pixels Converter ensures your designs and images meet print requirements accurately. Simply input your dimensions in centimeters and resolution in PPI to get the required pixel size instantly.