Enter a font size (in points or pixels) to convert it to inches. If you use pixels, you can optionally enter the screen resolution (PPI) to estimate the physical size on a specific display.
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Font Size To Inches Formula
The following formulas are used to convert a font size to inches, depending on the units.
\begin{aligned}
I &= \frac{F}{72}\quad (\text{F in points (pt)})\\
I &= \frac{P}{R}\quad (\text{P in pixels (px), R in pixels per inch (PPI)})
\end{aligned}Variables:
- I is the size in inches
- F is the font size in points (pt)
- P is the font size in pixels (px)
- R is the screen resolution in pixels per inch (PPI) (if not known, CSS commonly uses 96 PPI as a reference)
To calculate the size in inches from points, divide the font size in points by 72. To estimate the size in inches from pixels on a specific display, divide the font size in pixels by the display’s PPI.
| Points (pt) | Pixels (px) | Inches (in) | Centimeters (cm) | Millimeters (mm) |
|---|---|---|---|---|
| 6 | 8.0 | 0.083 | 0.212 | 2.117 |
| 7 | 9.3 | 0.097 | 0.247 | 2.469 |
| 8 | 10.7 | 0.111 | 0.282 | 2.822 |
| 9 | 12.0 | 0.125 | 0.318 | 3.175 |
| 10 | 13.3 | 0.139 | 0.353 | 3.528 |
| 11 | 14.7 | 0.153 | 0.388 | 3.881 |
| 12 | 16.0 | 0.167 | 0.423 | 4.233 |
| 14 | 18.7 | 0.194 | 0.494 | 4.944 |
| 16 | 21.3 | 0.222 | 0.564 | 5.644 |
| 18 | 24.0 | 0.250 | 0.635 | 6.350 |
| 20 | 26.7 | 0.278 | 0.706 | 7.056 |
| 22 | 29.3 | 0.306 | 0.776 | 7.761 |
| 24 | 32.0 | 0.333 | 0.847 | 8.467 |
| 28 | 37.3 | 0.389 | 0.988 | 9.878 |
| 32 | 42.7 | 0.444 | 1.129 | 11.289 |
| 36 | 48.0 | 0.500 | 1.270 | 12.700 |
| 40 | 53.3 | 0.556 | 1.411 | 14.111 |
| 48 | 64.0 | 0.667 | 1.693 | 16.933 |
| 60 | 80.0 | 0.833 | 2.117 | 21.167 |
| 72 | 96.0 | 1.000 | 2.540 | 25.400 |
| *Assumes CSS reference mapping: 1 inch = 72 points = 96 CSS pixels. Physical size on screen may vary with actual display PPI and OS/browser scaling. | ||||
What is a Font Size To Inches?
Font size to inches is a way to express the height of text as a physical length. In typography, font size is often measured in points, where 1 point (pt) equals 1/72 of an inch (in). On screens, font sizes are commonly specified in pixels (px), and converting pixels to inches requires knowing the display’s pixel density (PPI).
How to Calculate Font Size To Inches?
The following steps outline how to calculate the Font Size To Inches.
- First, determine the font size in points (pt) or pixels (px).
- If your font size is in points, use inches = points / 72.
- If your font size is in pixels, determine the screen resolution in pixels per inch (PPI), then use inches = pixels / PPI.
- If needed, convert inches to other units (1 in = 2.54 cm = 25.4 mm).
- After calculating, check your answer with the calculator above.
Example Problem :
Use the following variables as an example problem to test your knowledge.
font size = 12 points (pt)
Using I = F / 72: I = 12 / 72 = 0.1667 inches (≈ 0.167 in).
For comparison, 16 px at 96 PPI (CSS reference) is also 16 / 96 = 0.1667 inches.
