Lowered · Formulas
Subscript generator
Lower just the numbers for chemical formulas and math indices, or make tiny letter text for bio accents. Type once and copy the result you need.
2 styles · tap to copy
Ready-made subscripts
Just need one symbol? Tap to copy — no typing required.
Formulas, pre-lowered
The everyday chemistry set — tap any formula to copy it whole.
Subscript letters & numbers
Every lowered character Unicode defines — faded tiles have no true subscript form and copy as a normal-size letter instead.
Subscript
Capitals
Numbers
Frequently asked questions
Why are some subscript letters missing?+
Unicode only encoded lowered forms for the letters that phonetic notation and mathematics actually use — about half the alphabet, plus every digit. Letters like b, c, d, f and g simply have no subscript character; the generator leaves them full-size rather than faking it.
How do I write CO₂ or H₂O?+
Type it with normal numbers — "CO2" or "H2O" — in the generator above, then copy the Subscript Numbers result. It lowers the digits while keeping chemical element letters unchanged. Use the Subscript result for tiny letter text, or the formula chips below for common molecules.
Subscript characters vs. smaller font size — which should I use?+
In Word or Docs, native formatting is better because any letter can be lowered. Unicode subscripts exist so formulas can travel through places with no formatting at all — chat apps, social posts, plain-text files — at the cost of only working for letters Unicode has defined.
Do subscript characters work on Instagram and TikTok?+
Mostly yes — the digits and common vowels render reliably in bios and captions. Coverage varies by app font, so glance at your post after pasting; if a character shows as a box, that platform's font is missing it.