How to Do Subscript in Microsoft Excel

Updated on:

May 12, 2026

By:

Use this interactive demo to learn how to apply subscript formatting in Microsoft Excel.

Quick summary

Subscript formatting in Microsoft Excel lets you display characters below the baseline, which is essential for writing chemical formulas, mathematical notation, and scientific data. You can apply subscript in Excel in three quick steps using the Format Cells dialog box.

Steps

Highlight the text or number you want to format as a subscript.
Click the small arrow in the bottom-right corner of the Font group on the Home tab to open the formatting options.
In the Format Cells dialog box, go to the Effects tab, check the Subscript option, then click OK.

📌 Why this matters

Knowing how to apply subscript formatting in Microsoft Excel is essential for anyone working with scientific data, chemical equations, or mathematical expressions in spreadsheets. Excel does not expose a dedicated subscript button on the ribbon, so understanding the Format Cells dialog workflow saves time and prevents formatting errors. This skill is especially valuable for researchers, educators, and data analysts who need precise character-level formatting without leaving their spreadsheet environment. Mastering this feature ensures your Excel documents meet professional and academic presentation standards.

Your product deserves an interactive demo

Start free

How to Organize Dates by Week in Excel

How to Make Cells Fit Text Microsoft Excel

How to Make a Bar Graph in Microsoft Excel