How do I measure sleeve length?

With your arm slightly bent, measure from the shoulder point (top of arm where the shoulder bone ends) over the elbow to the wrist bone. For set-in sleeves, this is the measurement used.

The sleeve cap is the curved top section that fits into the armhole. Its height affects how the sleeve hangs. A higher cap gives a tailored look; a lower cap gives a more casual, comfortable fit.

How long is a three-quarter sleeve?

A three-quarter (3/4) sleeve ends approximately halfway between the elbow and wrist, which is about 75% of the full sleeve length from shoulder to wrist.

SewCalcs

Sleeve Length Calculator — Correct Sleeve Measurements

Calculate the correct sleeve length based on your arm measurements and desired sleeve style.

Shoulder to Wrist

Full arm length

Shoulder to Elbow

Sleeve Style

How We Calculate This

Sleeve length is calculated as a proportion of your shoulder-to-wrist measurement based on the desired style.

Sleeve proportions

Long: 100% of shoulder-to-wrist
Three-quarter: 75%
Elbow: shoulder-to-elbow measurement
Short: 55% of shoulder-to-elbow
Cap: 30% of shoulder-to-elbow

Frequently Asked Questions

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Last updated: February 2026

All calculations are estimates. Always verify quantities before cutting or purchasing fabric.