Convertidor de Em a Píxeles
Convierte unidades em a píxeles para diseño web. Basado en el tamaño de fuente.
em
px
Pixels
24.0 px
Rem (if root = 16px)1.500 rem
Puntos18.0 pt
Fórmula
Em to Pixels
Pixels = Em x Base Font Size
What is an Em?
In CSS, 1em equals the computed font size of the parent element. If the parent is 16px, then 1em = 16px, 1.5em = 24px, 0.875em = 14px.
Em vs Rem
Default browser root font size is 16px.
Ejemplo Resuelto
1.5em with a 16px base font.
- 01Pixels = 1.5 x 16 = 24px
- 02Rem = 24 / 16 = 1.5rem
- 03Points = 24 x 0.75 = 18pt
Preguntas Frecuentes
Why use em instead of pixels?
Em units are relative and scale with the user font size preference. This makes designs more accessible and responsive. Pixel values are absolute and do not adapt.
Should I use em or rem?
Use rem for most sizing (consistent, based on root). Use em when you specifically want sizing to cascade relative to the parent, such as padding that scales with the component text size.
Aprender