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appkiro.comUsed for em and rem calculations
Type a value once and see it expressed in pixels, points, picas, agates, ciceros, inches, millimeters, centimeters, em, and rem at the same time. The CSS reference of 96 pixels per inch is used as the bridge between absolute units, while em and rem are computed against an adjustable base font size.
The Base Font Size at the top is only used for em and rem. It defaults to 16px, matching the browser default root size, so 1rem equals 16px out of the box. Change it to whatever your project uses if you want em and rem to reflect that.
Both are computed against the Base Font Size at the top. Changing the base immediately re-derives every em and rem value because they are relative units, not absolute lengths.
It is. The conversion uses the CSS standard of 96 pixels per inch and 72 points per inch, so 1pt equals 96/72 ≈ 1.3333px. The display rounds to a few decimals depending on magnitude.
Agate is a US newspaper unit, 14 to the inch (about 5.14pt), historically used for classifieds. Cicero is a European typographic unit of about 4.512mm, twelve Didot points, used in continental print traditions.
Yes. Click any of the converted-value cards to make that unit the source. The number is formatted with appropriate precision and the conversion runs in the opposite direction.
No. The conversions are simple JavaScript arithmetic that runs entirely in the browser; nothing is sent to a server.