What is the best font size for TikTok captions?
56–72px on a 1080×1920 canvas — about 6–8% of frame width. Use heavier fonts at the smaller end of the range and thinner fonts at the larger end.
Detail
TikTok plays muted by default and the For You feed is scrolled at speed. Captions need to be readable inside about a 0.6-second glance. The sweet spot on a 1080×1920 vertical export is 56–72 pixels, depending on font weight. Heavy sans-serifs like Inter Black, Anton, or Montserrat Black hit legibility at 56px; mid-weight fonts (Inter Medium, Poppins SemiBold) need 64–72px to stay readable at the same distance. Pair the size with a 4–6px black stroke or a solid background plate so captions hold against bright backgrounds.
- Heavy weight (Inter Black, Anton): 56–60px
- Mid-weight (Inter SemiBold): 64–68px
- Light weight (avoid for short-form): 72px+ if you must
- Always render on a 1080×1920 canvas to keep size predictable
Place captions between 50% and 60% from the top of the frame. Avoid the bottom 22% (Reels UI) and the top 14% (close button and AR badge).
A heavy sans-serif. Inter Black, Montserrat Black, and Anton are reliable defaults. Avoid thin fonts — they break apart on compressed video.