Font Type and Size
Superscripts and subscripts (e.g., formulas, or footnote or endnote numbers) should be no more than 2 points smaller than the font size used for the body of the text.
What size text should footnotes be?
You may use the default text size for your notes. The preferred method is to use the same font and font size as your text (12 pt font Times New Roman) Footnotes should be placed at the end of all punctuation except the dash.
Should footnotes be the same font size MLA?
Footnote format
Footnotes are formatted with superscript numbers that usually appear at the end of the sentence after the punctuation. ... For the note itself, use the same font as the rest of your paper but in a smaller size. For example, if your paper is written in 12 pt. font, then your footnote should be in 10 pt.