How to Measure False Lashes for Your Eye Size

Buying lashes online without measuring is like ordering jeans blindfolded. You're gambling. And for some reason, nobody talks about it. So let's fix that. Here are the three numbers that actually matter.

THE 3 NUMBERS THAT MATTER

• Your eye width. The distance from inner to outer corner. Determines which lash band fits.
• Your lash length in mm. The lash hair's length. Determines the drama.
• The band's curve. How much the band matches your eye's natural shape.

Get these three right and 90% of lash problems disappear: the poking, the lifting, the andldquo;why does it look like two different eyes?andrdquo; mystery.

HOW TO MEASURE YOUR EYE IN 90 SECONDS

1. Clean your face and look straight into a mirror.
2. Measure from inner corner to outer corner of your eye — not your eyebrow, your actual lash line.
3. Write that number down. It's your eye width.
4. Measure the crease depth: the vertical distance between your lash line and the brow bone.

Common eye widths: 26–28mm (narrow), 28–30mm (average), 30–34mm (wide).

HOW TO READ A LASH SIZE CHART

Your eye width tells you the band size. Your lash length tells you the look. Deep-set and hooded eyes should stick to 8–11mm and rely on curl rather than length.

THE TRIM RULE: ALWAYS. YES, ALWAYS.

• Never trim from the outer corner. It ruins the eye-lift effect.
• Trim from the inner corner. It disappears into the natural lash line.
• Trim in small amounts. Half a millimeter at a time. Short lashes are easier to fix than over-trimmed ones.

WHAT TO LOOK FOR IN A MEASURED FIT

• The lash band matches the curve of your eye, not the other way around.
• The lash length matches your eye width so no gaps appear.
• It comes pre-sized or clearly labeled for trimming.

When your lashes fit, you feel it in every blink, every photo, every time you catch your reflection.

FREQUENTLY ASKED QUESTIONS

How do I measure my eye for fake lashes?
Use a flexible measuring tape from the inner corner of your eye to the outer corner, following the curve of your lash line, not a straight line.

What size lashes should I get for my eye size?
Narrow eyes (26–28mm) need shorter lashes (8–10mm) and a tighter curl. Wide eyes (30–34mm) can handle 10–12mm and dramatic styles.

What happens if lashes are too long for my eyes?
They hit the brow bone when you blink, won't stay in place, and can irritate the lash line. Always trim to fit.

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