Choose a pair of jeans that fits well at the waist and hips
Wash and dry the jeans before cutting
Put on the jeans and mark the desired skirt length
Measure and mark a straight line across both legs below the crotch area
Cut off both pant legs along the marked line
Open the inner leg seams from the cut edge up to the crotch
Open the front and back center seams if needed for extra flare
Lay the jeans flat and arrange the opened panels into a skirt shape
Pin the front and back panels together
Add a triangular or rectangular fabric insert if there is a gap
Sew the opened seams together securely
Trim excess fabric and finish raw edges
Hem the bottom edge to the desired length
Topstitch seams for a neat finish
Try on the skirt and adjust fit if needed