The Complete Guide to Glasses for Your Face Shape (2026)

The rule that governs everything

Contrast flatters. Angular faces look best in rounded frames; soft, rounded faces gain definition from angular frames. Everything else in eyewear styling is a footnote to this one principle.

Find your shape in 30 seconds

Pull your hair back and look straight into your phone camera. Widest at the cheekbones with a rounded chin: round face — go for rectangles, wayfarers and browlines. Strong jaw, wide forehead, similar width and length: square — try rounds, ovals and rimless. Longer than wide with balanced features: oval — nearly everything works; aviators and geometric shapes shine. Wide forehead tapering to a pointed chin: heart — cat-eyes and bottom-heavy frames balance you out.

Skip the tape measure entirely: Klarity's AR try-on puts any of 170+ frames on your face at true scale in seconds, which settles the debate faster than any chart.

Size matters more than shape

A perfect shape in the wrong width still looks off. Check the three numbers inside your current temple arm — e.g. 52-18-140 (lens width, bridge, temple length in mm) — and stay within 2mm of each when buying online. Your eyes should sit at the centre of each lens, and the frame's edge should end at your temple, never past it.