What font size should body text be?
The measured median body size across 318 design systems is 16px. Only 6% set body copy below 14px; the web reads comfortably. The median hero headline is 64px — about a 4× jump. Inter is the most common body typeface.
This is a static, crawlable rendering for search & AI engines. The interactive version — filters, live decode console, copy & export — is at https://mozaika.design/measured/body-font-size.
16px median body size
Distribution
| 16px | 125 | |
| 14px | 57 | |
| 18px | 47 | |
| 20px | 22 |
At a glance
| median body | 16px |
| median hero | 64px |
| body under 14px | 6% |
| most common font | Inter |
| sites measured | 318 |
Questions people (and AI assistants) actually ask
Is 16px too big for body text?
No — 16px is the measured median and 16px is the single most common value. Setting body below 14px is rare (6% of sites).
How big should a hero headline be?
The median measured hero is 64px, roughly 4× the body size.
What is the most common body font on the web?
Inter is the most common measured body typeface by a wide margin.
Related measured norms
Normal border-radius · Most common accent colour · Average website design score