Need the lowered 2 for a formula?
Quick answer: Need subscript 2 for H₂O or CO₂? Tap ₂ below. It copies as Unicode U+2082, not a smaller font. Paste into chat, Docs, or slides and the digit stays below the line. Word Format → Subscript often dies after paste; this character does not.
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Tap to copy
Then paste into Word, Docs, or WhatsApp. The button flashes Copied.
Why Word’s lowered 2 dies in chat
In Word or Google Docs you can highlight a 2 and pick Format → Subscript. It looks right on that page. Paste the same sentence into WhatsApp and the 2 jumps back to normal size. That style never left the document.
₂ is a different character. Once it is on the clipboard, most phones and browsers keep it below the line. If a very old font shows a box, the device is missing the digit block. Switch to a common system font, not a smaller point size.
On a phone: tap ₂, switch to the chat or Notes, long-press, Paste. You should see a 2 sitting under the line, the same shape as the 2 in H₂O. If you still see a full-size 2, you copied a normal digit by mistake. Tap the large ₂ button again.
On a computer: click ₂, then Ctrl + V (Windows) or Cmd + V (Mac). The same glyph works in Gmail and most slide text boxes. Spreadsheet formulas still want H2O or CO2 as plain ASCII if you are calculating; use ₂ in labels and titles.
Subscript numbers copy paste: full ₀–₉ board
Each cell is a button. These subscript numbers match the digits teachers use for H₂O, CO₂, and C₆H₁₂O₆. Unicode maps digits 0 through 9 to U+2080 through U+2089 (see the U2070 chart PDF and the names list).
| 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
|---|---|---|---|---|---|---|---|---|---|
| ₀ | ₁ | ₂ | ₃ | ₄ | ₅ | ₆ | ₇ | ₈ | ₉ |
| U+2080 | U+2081 | U+2082 | U+2083 | U+2084 | U+2085 | U+2086 | U+2087 | U+2088 | U+2089 |
Tap any glyph in the row above to copy it. U+2082 is the lowered 2 in H₂O and CO₂. U+2080 is rare in homework but shows up in physics labels like v₀.
Why Unicode misses some subscript letters
Digits 0 to 9 all exist as lowered characters. Letters do not. Unicode has no standard Latin subscript for many letters, including a plain b or f. If you need a variable index like xᵢ or a Greek lookalike, check the letter chart first.
See which lowered letters Unicode actually has before you hunt for a missing glyph.
Quick answers
What is the Unicode for the lowered 2? ₂ is U+2082. Tap it on this page to copy. It is the 2 in H₂O and CO₂.
Why did my Word subscript vanish in WhatsApp? Word Format → Subscript is a font style. Chat apps drop that style. Unicode ₂ is a different character, so it stays below the line after paste.
How do I copy all digits 0 to 9? Tap each digit in the board on this page, or type 0123456789 in the homepage converter with Subscript selected.
After you copy one digit
Need more than subscript 2? Type the full formula on the homepage formula converter, choose Subscript + Formula, and copy once.