Font Size Converter
Convert between px, pt, em, rem, and % font sizes.
Frequently Asked Questions
How many px in a pt?
1pt = 1.333px (at 96 DPI).
What is em?
Em is relative to the parent font size. 1em = parent font size.
Is this free?
Yes, completely free with no signup.
How to Use
- Copy the result or try another value
- View the result and reference table
- Select source and target units if applicable
- Use the swap button to reverse direction
FAQ
Can I convert multiple values?
Enter multiple values separated by commas or newlines to convert them all at once.
Is the conversion formula shown?
Yes, the formula is displayed with each result so you can verify the math.
Does it work offline?
Once loaded, all conversions happen in your browser. Bookmark it for offline use.
How accurate is this converter?
Uses IEEE 754 double-precision arithmetic with up to 15 significant digits. Formulas based on international standards.
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