Waist and hip circumference
Waist controls the top opening and waistband. Hip controls the widest lower-body area and affects the side seam, crotch curve, and ease through the seat.
Sewing pattern guide
Pants measurements guide
Basic pants patterns depend on a small set of measurements that must work together. This guide explains what each measurement controls and what to verify after generation.
Rise and crotch depth
Rise defines how high the pants sit from crotch to waist. If rise is too short, the garment pulls vertically; if it is too long, extra fabric appears below the seat.
Inseam and outseam
Inseam runs from crotch to hem along the inner leg. Outseam runs from waist to hem along the side. These two values define overall leg length and help balance the crotch position.
Knee and hem width
Knee and hem settings control the leg silhouette. A narrow hem creates a tapered look, while a wider hem produces relaxed or wide-leg pants.
Front and back darts
Darts remove waist excess while preserving room at the hip. A back dart is common; a front dart can be useful when the waist is much smaller than the hip.
Wearing ease
Ease is extra space beyond body measurements. Woven pants usually need enough ease for sitting, walking, and fabric behavior.
Before cutting fabric
After generating the pants block, compare the front and back inseam lengths, side seams, waistline, waistband length, hem allowance, and print scale. The generated file is a drafting guide and may still need fitting corrections.