HTML TUTORIALS
Online Tools: PX, PT, Percent & REM Unit Calculator
The Font Size Conversion Calculator makes it easy to convert font sizes between pixels (px), points (pt), ems (em), rems (rem), and percentages (%). The calculator uses common CSS conversion standards in which 16px equals 12pt, 1rem, or 100% when the browser’s default font size is 16px.
An em value is relative to the font size of its parent element, while a rem value is relative to the root <html> element. Because these relative units depend on a base font size, you can adjust the base value when calculating sizes for your website or responsive design project.
See Also:
Color Selector
Color Format Converter
HTML Editor
Color Tint & Shade Generator
Color Palette Generator
CSS Gradient Tool