4 pt is equal to 5.3333 px.
The conversion from points (pt) to pixels (px) depends on the screen resolution, commonly using a standard of 1pt = 1.3333px. This means each point corresponds to 1.3333 pixels, so multiplying 4 by 1.3333 gives 5.3333 pixels.
Conversion Tool
Result in px:
Conversion Formula
To convert points (pt) to pixels (px), multiply the point value by 1.3333 because one point is equal to 1/72 inch, and the pixel depends on screen resolution, usually 96 DPI (dots per inch). So, the calculation is:
px = pt × (96 / 72)
Where 96/72 equals 1.3333. For example, converting 4 pt:
- Multiply 4 by 1.3333
- 4 × 1.3333 = 5.3333 px
- This means 4 points on screen will display as 5.3333 pixels
Conversion Example
- Convert 7 pt to px:
- Multiply 7 by 1.3333
- 7 × 1.3333 = 9.3331 px
- Convert 10 pt to px:
- 10 × 1.3333 = 13.333 px
- Convert 0.5 pt to px:
- 0.5 × 1.3333 = 0.6667 px
- Convert 15 pt to px:
- 15 × 1.3333 = 20.000 px
Conversion Chart
| pt | px |
|---|---|
| -21.0 | -28.000 |
| -15.0 | -20.000 |
| -10.0 | -13.333 |
| -5.0 | -6.667 |
| 0.0 | 0.000 |
| 5.0 | 6.667 |
| 10.0 | 13.333 |
| 15.0 | 20.000 |
| 20.0 | 26.667 |
| 25.0 | 33.333 |
| 29.0 | 38.667 |
The chart shows pt values in the first column and the corresponding pixels in the second. To find the pixel value for a point, locate the point value then read across to see pixels. Negative values indicate sizes less than zero, useful in some design contexts.
Related Conversion Questions
- How many pixels is 4 pt in CSS?
- What is the px equivalent of 4 points on a 96 DPI screen?
- Is 4 pt always 5.3333 pixels on different devices?
- How to convert 4 pt font size to px for web design?
- Does 4 pt equal the same px in print and digital?
- Why does 4 pt convert differently to pixels on various screens?
- What formula do I use to change 4 pt into pixels?
Conversion Definitions
pt: A point (pt) is a unit of measurement in typography that equals 1/72 of an inch. It’s used to specify font sizes, spacing, and other layout dimensions in print and digital media. Points provide a consistent scale independent of screen resolution.
px: A pixel (px) is the smallest unit of a digital image or display. Pixels represent individual dots on a screen, varying in size based on screen resolution and device. Pixels are used in web design and digital graphics to control precise element dimensions.
Conversion FAQs
Why does 4 pt convert to 5.3333 px, not an integer?
Because the conversion uses a ratio of 1.3333 pixels per point, the result often includes decimals. Screen pixels don’t align perfectly with points, so fractional pixel values occur. Many design tools round these values depending on rendering requirements.
Can the pt to px conversion change depending on device DPI?
Yes, pixel size depends on the device’s screen density (DPI). The standard conversion assumes 96 DPI, but higher or lower DPI screens change how many pixels represent a point, affecting the exact px value for 4 pt on different devices.
Is the conversion formula always pt × 1.3333?
This formula applies under a 96 DPI assumption, common in web design. Other contexts might use different DPI settings, which changes the multiplier. Always verify the target output device’s DPI for accurate conversions.
Why might 4 pt font look different from 5.3333 px font on screens?
Because font rendering involves anti-aliasing, hinting, and device pixel ratios, the visual size of fonts can differ despite exact numerical conversions. Screen resolution and browser settings also impact how these sizes appear.
Can I use the conversion tool for negative pt values?
Technically, yes. Negative pt values convert to negative pixels mathematically, but negative font sizes or lengths are usually invalid in CSS or design. The tool calculates them, but usage depends on the context.