About the Font Size Converter
Convert font sizes between px, pt, em, rem and percent for web and print.
Also known as: pt to px, px to pt, font unit converter, point to pixel.
How to use this calculator
- Enter size, unit, root font size.
- The result updates instantly as you type — press Calculate (or Enter) at any time.
- Review the breakdown shown under the main result.
- Use Copy result or Share to save the answer or send a link with your inputs.
Formula
px = pt × 96 ÷ 72 · rem = px ÷ root font size
Worked example
Using the values pre-filled in the calculator above:
- Size = 16
- Unit: Pixels
- Root font size = 16 px
the calculator returns:
- Pixels: 16 px
- Points: 12 pt
- REM: 1 rem
- EM (at the root size): 1 em