24 pt is equal to 1.5 rem.
The conversion from points (pt) to rem units involves converting the point size to pixels, then dividing by the root element font size in pixels. Since 1 pt equals 1.3333 pixels and the default browser font size is 16 pixels, 24 pt converts to 32 pixels, which is 1.5 rem.
Conversion Tool
Result in rem:
Conversion Formula
The formula to convert pt to rem is based on two conversions: points to pixels and pixels to rem. Points are a print measurement, where 1 pt equals 1/72 inch, and on screens, it’s standardized as 1 pt = 1.3333 pixels. Rem units are relative to the root font size, which browsers set to 16 pixels by default.
So, the formula is:
rem = (pt × 1.3333) / 16
This works because you first convert points to pixels, then divide by the root font size in pixels to get rem. For example, converting 24 pt:
- 24 pt × 1.3333 = 32 pixels
- 32 pixels ÷ 16 pixels (root font size) = 1.5 rem
Conversion Example
- Convert 18 pt to rem:
- 18 pt × 1.3333 = 24 pixels
- 24 pixels ÷ 16 = 1.5 rem
- Convert 12 pt to rem:
- 12 pt × 1.3333 = 16 pixels
- 16 pixels ÷ 16 = 1 rem
- Convert 36 pt to rem:
- 36 pt × 1.3333 = 48 pixels
- 48 pixels ÷ 16 = 3 rem
- Convert 9 pt to rem:
- 9 pt × 1.3333 = 12 pixels
- 12 pixels ÷ 16 = 0.75 rem
- Convert 48 pt to rem:
- 48 pt × 1.3333 = 64 pixels
- 64 pixels ÷ 16 = 4 rem
Conversion Chart
This chart shows values from -1.0 pt to 49.0 pt converted to rem units. Negative values can occur in some rare design adjustments or calculations. To use the chart, find the pt value on the left, then read across to see the equivalent rem value on the right.
| pt | rem |
|---|---|
| -1.0 | -0.0833 |
| 0.0 | 0.0000 |
| 1.0 | 0.0833 |
| 2.0 | 0.1667 |
| 3.0 | 0.2500 |
| 4.0 | 0.3333 |
| 5.0 | 0.4167 |
| 6.0 | 0.5000 |
| 7.0 | 0.5833 |
| 8.0 | 0.6667 |
| 9.0 | 0.7500 |
| 10.0 | 0.8333 |
| 11.0 | 0.9167 |
| 12.0 | 1.0000 |
| 13.0 | 1.0833 |
| 14.0 | 1.1667 |
| 15.0 | 1.2500 |
| 16.0 | 1.3333 |
| 17.0 | 1.4167 |
| 18.0 | 1.5000 |
| 19.0 | 1.5833 |
| 20.0 | 1.6667 |
| 21.0 | 1.7500 |
| 22.0 | 1.8333 |
| 23.0 | 1.9167 |
| 24.0 | 2.0000 |
| 25.0 | 2.0833 |
| 26.0 | 2.1667 |
| 27.0 | 2.2500 |
| 28.0 | 2.3333 |
| 29.0 | 2.4167 |
| 30.0 | 2.5000 |
| 31.0 | 2.5833 |
| 32.0 | 2.6667 |
| 33.0 | 2.7500 |
| 34.0 | 2.8333 |
| 35.0 | 2.9167 |
| 36.0 | 3.0000 |
| 37.0 | 3.0833 |
| 38.0 | 3.1667 |
| 39.0 | 3.2500 |
| 40.0 | 3.3333 |
| 41.0 | 3.4167 |
| 42.0 | 3.5000 |
| 43.0 | 3.5833 |
| 44.0 | 3.6667 |
| 45.0 | 3.7500 |
| 46.0 | 3.8333 |
| 47.0 | 3.9167 |
| 48.0 | 4.0000 |
| 49.0 | 4.0833 |
Related Conversion Questions
- How many rem units equals 24 pt in CSS?
- What is the step-by-step way to convert 24 pt to rem?
- Is 24 pt equal to 1.5 rem or 2 rem?
- How does the browser root font size affect 24 pt to rem conversion?
- Can 24 pt be converted to rem without using pixels as intermediate?
- Why 24 pt corresponds to 1.5 rem in web design?
- What is the difference between pt and rem when converting 24 pt?
Conversion Definitions
pt: Pt stands for point, a unit of measurement mainly used in print and typography. One point equals 1/72 of an inch and is used to specify font sizes, spacing, and other layout dimensions. On screens, 1 pt is standardized as 1.3333 pixels to maintain visual consistency.
rem: Rem means root em, a CSS unit relative to the font size of the root element (usually the HTML tag). One rem equals the computed font size of the root, often 16 pixels by default. Rem units allow scalable and accessible sizing across different devices and user settings.
Conversion FAQs
Can the root font size be changed, affecting 24 pt to rem conversion?
Yes, changing the root font size in CSS modifies how rem units calculate. If root font size is changed from 16 pixels to another value, the rem equivalent for 24 pt changes because rem depends on the root font size. For example, with 20 pixels root, 24 pt equals (24 × 1.3333) / 20 = 1.6 rem.
Why do we convert pt to rem instead of pixels in web design?
Rem units offer better scalability and accessibility compared to pixels. Pixels are fixed, but rem scales with user settings or browser defaults. This means designs using rem better adapt to different devices and user preferences, improving readability and responsiveness.
Is the 1.3333 multiplier for pt to pixels always accurate?
The 1.3333 multiplier comes from the standard 96 dots per inch (DPI) screen measurement, where 1 pt equals 1/72 inch, so 1 pt = 96/72 pixels = 1.3333 pixels. However, on some devices or displays with different DPI, this can vary slightly, but browsers usually apply this standard for consistency.
What happens if negative pt values are converted to rem?
Negative pt values convert to negative rem values by the same formula. While negative font sizes don’t make sense visually, negative numbers may be used in calculations or animations. The conversion formula applies mathematically without restrictions.
Can rem units be fractional, like 1.5 rem from 24 pt?
Yes, rem units can be fractional values with decimals. Browsers accept fractional rems like 1.5 rem for precise sizing. This allows designs to use exact scaling rather than only whole number sizes, enhancing design flexibility.
Last Updated : 24 June, 2025
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Sandeep Bhandari holds a Bachelor of Engineering in Computers from Thapar University (2006). He has 20 years of experience in the technology field. He has a keen interest in various technical fields, including database systems, computer networks, and programming. You can read more about him on his bio page.