Subscript Font Made Easy: A Complete Guide to Lowered Text

The subscript font is about far more than aesthetics. You see, all of these tiny characters below the line mean something — be it an ironic touch in a post on social media, or the index of a variable in math.

But dealing with subscript characters, like with many other formatting features, can be tedious. You never know whether the size and position of a subscript letter will actually paste into your text editor, or return a meaningless standard character.

What is a subscript? When are subscripts used? And what is the difference between a subscript and a coefficient? Discover this and more in this comprehensive guide!

According to its most basic definition, a subscript is a character that sits below the baseline and is about 60% smaller.

Most of us think that subscript letters are just normal characters that are shrunk and moved into position, but there is more going on in the background. Text editors make them heavier and proportionally wider. It’s a trick of the trade that makes the character well-visible and readable. Without it, the thinned lines would disappear into the background.

But subscript also functions outside a text editor’s subscript formatting settings as unique Unicode characters. These have their own codes that are different from regular letters and digits — for example, the code for the standard letter a is U+0061 (97 in decimal), while for its subscript version, ₐ, it’s U+2090 (8336).

So, now that we’re familiar with the general definition of the subscript font, let’s ask ourselves, when do we actually use subscripts?

Well, with a little bit of imagination and a good use of free will, you can use subscript characters anywhere you like — though the most common use is within the sciences. In a world where calculation can get pretty hectic, subscripts help restore order, and it’s pretty genius.

• In math, subscript characters add to the identity of a variable, so that you don’t get confused when dealing with long equations. For example, if you have three similar variables, you can name them $t_1$, $t_2$, and $t_3$. That way, you will always know which one is which!
• Similarly, in physics, we can name different types of the same quantity using subscript letters. For instance, given that gravity is a force, we can name it $F_g$.
• In chemistry, an atom can be accompanied by two numbers: a subscript and a coefficient. While the latter tells us the number of entire molecules that we’re dealing with, the former defines how many atoms of a specific element there are within one molecule.

Want to learn more? Head to our full guide on the scientific definition of a subscript!

The conceptual inverse of subscript font is superscript! This one is also predominantly used in the sciences, but not only:

• As you might recall from your math classes, superscripts function as exponents, providing a concise shorthand for repeated multiplication so we don’t have to write the same number over and over. So, instead of writing $5 \times 5 \times 5 \times 7 \times 7 \times 7 \times 7$, you can write $5^3 \times 7^4$!
• In chemistry, a superscript that precedes the name of an element represents its atomic mass number, while one that follows it indicates the number of electrons lost or gained.
• In everyday writing, superscripts are often used for ordinal indicators, such as 22^nd, or 146^th. However, it’s increasingly common nowadays to simply keep these suffixes in a standard font.

If you need a superscript, you can use our superscript generator.