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Subscript generator

Type your text to lower it into subscript: small numbers, signs and letters that sit below the line, as in H₂O. Unicode has fewer subscript letters than raised ones, so check the chart for the letters that stay normal.

How to use it

  1. Type your text

    Type or paste the words you want to style. Every style below changes as you type.

  2. Pick a style

    Look through the styles and choose the one that suits your bio, caption or message.

  3. Copy and paste

    Select Copy next to the style, then paste the text where you want it and check how it looks there.

Which letters have a subscript

Each pair shows the character you type on top and the character you get underneath. Characters in grey have no subscript form, so they stay as typed. Capital letters have none at all.

  • aₐ
  • bb
  • cc
  • dd
  • eₑ
  • ff
  • gg
  • hₕ
  • iᵢ
  • jⱼ
  • kₖ
  • lₗ
  • mₘ
  • nₙ
  • oₒ
  • pₚ
  • qq
  • rᵣ
  • sₛ
  • tₜ
  • uᵤ
  • vᵥ
  • ww
  • xₓ
  • yy
  • zz
  • 0₀
  • 1₁
  • 2₂
  • 3₃
  • 4₄
  • 5₅
  • 6₆
  • 7₇
  • 8₈
  • 9₉
  • +₊
  • -₋
  • =₌
  • (₍
  • )₎

What subscript is

Subscript letters and numbers sit below the baseline, as in the formulas H₂O and CO₂ and in the small index of a variable. In Unicode they are separate characters, so the lowered look stays when you paste them into apps that offer no formatting.

Letters Unicode does not have

Every digit and the signs + - = ( ) have a subscript form. Letters are different: Unicode has subscripts for only 17 small letters (a, e, h, i, j, k, l, m, n, o, p, r, s, t, u, v and x) and for no capitals. The nine small letters that stay as typed are b, c, d, f, g, q, w, y and z.

Using subscript

Because capitals stay as typed, you can type a formula such as H2O or C6H12O6 and only the digits drop. Every character you type is converted, so for a formula with small letters or brackets, such as Ca(OH)2, convert just the digit and put it in place yourself. Subscript suits:

  • Chemical formulas such as H₂O and CO₂.
  • The small index of a variable in a message.
  • A footnote number below a word.

Frequently asked questions

How do I type a subscript number on my phone?

Phone keyboards usually have no subscript keys. Type your digits above, copy the subscript version and paste it where you need it, for example the 2 in H2O.

How do I write H2O with a subscript 2?

Type H2O above. Capital letters stay as typed and the digit drops, so you get H₂O. Copy it and paste it into your document, caption or message.

Which letters have a subscript?

Every digit, the signs + - = ( ) and 17 small letters: a, e, h, i, j, k, l, m, n, o, p, r, s, t, u, v and x. There are no subscript capitals. The chart above shows every character.

Why do some of my letters stay normal size?

Unicode has no subscript for b, c, d, f, g, q, w, y and z, or for any capital letter, so those characters stay as you typed them.

Can I use subscript in a chemistry document or a spreadsheet?

These are display characters. They look right in a caption or a message, but a spreadsheet, a calculator or a chemistry program will not treat them as indexes. In a document, the subscript setting of your word processor is the better choice.

Is the subscript generator free?

Yes. It runs in your browser with no account and nothing to install. Your text is converted on your device and is never uploaded or saved, so you can try as many versions as you like.

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