How to Draw Block Letter O
Block letter O is a circle. In strict geometric styles (like Futura), it's a true circle with uniform stroke weight all the way around. In humanist styles, it's a slight oval, narrower at the sides than at top and bottom — this counteracts the optical illusion that makes a true circle look horizontally squashed at headline size. O is also a kerning reference: round-to-flat pairs (OH, OL) need different spacing than round-to-round (OO, OQ).
Letter O in Block-Letter Styles
Block lettering covers a range of sans-serif styles — from heavy poster blocks to condensed industrial faces. Here's how the letter “O” looks across the most common block variants.
Heavy Block
Bold Italic
Industrial
Poster
Condensed Bold
Stencil Lite
How to Draw Uppercase Block “O”
Block O is a single closed curve — either a true circle (geometric style) or a slight vertical oval (humanist style). Draw in two halves if needed and join cleanly so the seam is invisible.
- ✗ Visible join where the two halves meet
- ✗ Inconsistent stroke weight around the circle
- ✗ Drawing as an egg shape — wider at top or bottom than the other
How to Draw Lowercase Block “o”
Lowercase 'o' is the same shape as the capital, sized to x-height. One closed circular curve.
- ✗ Drawing as an oval when style calls for a circle
- ✗ Stroke weight thinner at the sides (or top/bottom) than elsewhere
- ✗ Closing the curve with a visible 'seam'
Letters Often Confused with Block “O”
Spacing & Kerning Companions for “O”
O's curved sides create extra optical white space against vertical neighbours. Always nudge round-to-flat pairs slightly tighter than the standard side-bearings would suggest.
Words Starting with “O” in Block Lettering
These uppercase words look particularly strong in block lettering. Click any word to preview it in our cursive generator for a script comparison.
Practice Tips for Block Letter “O”
- 1Decide between true circle (geometric) and slight oval (humanist) and stay consistent.
- 2Practise drawing in one continuous motion to avoid a visible seam.
- 3Keep stroke weight identical all the way around — uneven thickness is the giveaway of an amateur block O.
- 4Use O as your reference for round-to-flat kerning across the whole alphabet.
- 5Test OO at headline size — if they look like one fat sausage, add air.
Frequently Asked Questions about Block Letter O
Frequently Asked Questions
Should block O be a true circle or an oval?
Why does block O often look squashed at headline size?
Learn More
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