Font Size Converter
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Formula
1 pt = 4/3 px. 1 em = 1 rem = 16px (default). Percentage = (px / base) × 100.
Frequently Asked Questions
What is the difference between em and rem?
Em is relative to the parent element's font size, while rem is always relative to the root (html) element's font size. Both default to 16px in most browsers.
How many pixels is 1 point?
1 point (pt) equals approximately 1.333 pixels (px) on screen at standard resolution.