Pixel (px)
Definition: A pixel (short for picture element) is the smallest unit of a digital image or graphic that can be displayed and represented on a digital display device.
History/origin: The concept of pixels dates back to the early days of television and computer monitors. In modern web standards (CSS), a pixel is defined as 1/96th of an inch.
Current use: Pixels are the absolute standard for web design, screen resolution, and digital photography.
Point (pt)
Definition: A point is a physical unit of measurement in typography, traditionally defined as 1/72 of an inch.
History/origin: The point system was established in the 18th century by Pierre-Simon Fournier and later refined by François-Ambroise Didot. It was the standard for metal typecasting for centuries.
Current use: Points are primarily used in print media (newspapers, books) and software like Microsoft Word or Adobe InDesign.
Pixel (px) to Point (pt) Conversion Table
| Pixel (px) [px] | Point (pt) [pt] |
|---|---|
| 0.01 px | 0.0075 pt |
| 0.1 px | 0.075 pt |
| 1 px | 0.75 pt |
| 2 px | 1.5 pt |
| 3 px | 2.25000001 pt |
| 5 px | 3.75000001 pt |
| 10 px | 7.50000002 pt |
| 20 px | 15.00000004 pt |
| 50 px | 37.50000009 pt |
| 100 px | 75.00000019 pt |
| 1000 px | 750.00000187 pt |
How to Convert Pixel (px) to Point (pt)
1 px = 0.75 pt
1 pt = 1.33333333 px
Example: convert 15 px to pt:
15 px = 15 × 0.75 pt = 11.25000003 pt
Did You Know?
- Did you know? In web design, a "Pixel" (px) is actually a relative unit. On modern high-resolution screens (like Retina displays), one CSS pixel can actually consist of multiple physical device pixels!
- The "Point" (pt) is a physical unit from the world of print. In the digital world (specifically CSS), exactly 72 points make up one physical inch.