Bugl — code interview practice that feels like a game

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Flash cards

Review the key moves

1/3

Core idea

What is the main idea behind Pixels to Ems Conversion?

Lesson checks

Practice each idea before moving on

Short Mimo-style checks built from this lesson's code, terms, and sequence.

1Quick choice

Which statement best captures the main point of this lesson?

2Order

Put the learning moves in the order that makes the concept easiest to apply.

- Set a default pixel size for body (usually 16px) - Then, convert a pixel value to em, based on the default pixel size - Or, convert an em value to pixels, based on the default pixel size

The tool below allows you to work out the em sizes from pixels (or vice versa).

Pixel to Em Converter

The tool below allows you to work out the em sizes from pixels (or vice versa).

Set a default pixel size for body (usually 16px)
Then, convert a pixel value to em, based on the default pixel size
Or, convert an em value to pixels, based on the default pixel size

Body Font Size

In the table below, select a body font size in pixels (px) to display a complete "px to em and percent" conversion table.

Tip

The default font size is usually 16px.

What is the difference between PX, EM and Percent?

Pixel is a static measurement, while percent and EM are relative measurements. The size of an EM or percent depends on its parent. If the text size of body is 16 pixels, then 150% or 1.5 EM will be 24 pixels (1.5 * 16). Look at CSS Units for more measurement units.