The tool below allows you to work out the em sizes from pixels (or vice versa).
Pixel to Em Converter
Set a default pixel size:
pxConvert PX to EM:
px
Convert EM to PX:
em
Result:
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.
| px | em | percent |
|---|---|---|
| 5px | 0.3125em | 31.25% |
| 6px | 0.3750em | 37.50% |
| 7px | 0.4375em | 43.75% |
| 8px | 0.5000em | 50.00% |
| 9px | 0.5625em | 56.25% |
| 10px | 0.6250em | 62.50% |
| 11px | 0.6875em | 68.75% |
| 12px | 0.7500em | 75.00% |
| 13px | 0.8125em | 81.25% |
| 14px | 0.8750em | 87.50% |
| 15px | 0.9375em | 93.75% |
| 16px | 1.0000em | 100.00% |
| 17px | 1.0625em | 106.25% |
| 18px | 1.1250em | 112.50% |
| 19px | 1.1875em | 118.75% |
| 20px | 1.2500em | 125.00% |
| 21px | 1.3125em | 131.25% |
| 22px | 1.3750em | 137.50% |
| 23px | 1.4375em | 143.75% |
| 24px | 1.5000em | 150.00% |
| 25px | 1.5625em | 156.25% |
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.