How To · Fashion · Build
How to Hem Jeans Without Losing Your Mind
A proper hem transforms jeans from sloppy to sharp—and you don't need a tailor to do it. We'll walk you through both hand-stitching and machine methods so you can pick your comfort level.
5 min read · IrisJeans that drag on your shoes or pool at your ankles aren't broken—they're just waiting for a hem. Whether you've got a new pair that's slightly too long or vintage finds that need rescuing, hemming is one of the most forgiving alterations you can tackle at home. The secret? Proper measurement and patience with the fold.
We're covering two methods here: a sturdy hand-stitch that'll last years, and a machine approach for speed demons. Both produce results that hold up through countless washes. Pick whichever matches your sewing comfort level and available time.
The difference between a sloppy hem and a sharp one is usually just one extra fold and five minutes of attention.
What you'll need.
- 01Measuring tape
- 02Tailor's chalk or fabric pencil
- 03Sharp scissors
- 04Iron and ironing board
- 05Straight pins
- 06Needle and thread (or sewing machine)
- 07Thimble (optional, for hand sewing)
Step one · 2 minutes
Measure and mark the correct length
Put on the jeans with the shoes you'll actually wear them with. Stand in front of a mirror and have someone measure from the top of your shoe to where you want the hem to hit—typically a quarter-inch above the shoe. Mark this length on both legs with tailor's chalk or a fabric pencil. The key is consistency: measure from the same point on each leg. If you're working solo, use a mirror and mark as you go around each leg.
Sit down in the jeans too. Hemlines shift when you bend, so make sure the length works for your actual movements.
Step two · 1 minute
Try on and confirm the mark
Before you cut anything, put the jeans back on and check your chalk marks in the mirror. Walk around. Sit. Make sure the length feels right and looks even on both legs. This is your last chance to adjust without ripping out stitches. If one leg looks shorter, re-mark it now.
Unroll the original hem first to see how much fabric you're working with. Some jeans have a 1.5-inch hem already built in.
Step three · 2 minutes
Cut and fold the new hem
Lay the jeans flat on a clean surface. Cut along your chalk line, leaving about half an inch of extra fabric below the mark. Fold that half-inch up toward the inside of the leg, then fold the entire new hem up about an inch (or match the original hem width if you want consistency). Press with an iron on medium heat to crease the fold. This crease is your guide for stitching.
If your jeans have a visible original hem, try to match its width. A 1.5-inch hem looks more professional than a skinny half-inch one.
Step four · 3 minutes
Pin the hem in place
Working on one leg at a time, pin the folded hem every 2 inches around the circumference. Use straight pins perpendicular to the fold so they don't get in your way while stitching. Make sure the fold is even all the way around—no bunching, no gaps. This is where precision pays off.
Pin from the inside of the leg so the pins don't show on the finished jean.
Step five · 2 minutes (hand) or 1 minute (machine)
Stitch the hem: hand method
Thread a needle with thread that matches your jeans. Use a ladder stitch (also called an invisible stitch) for the cleanest look: catch a few threads on the fold of the hem, then cross over and catch a few threads on the jean leg itself, directly across from where you just stitched. Work your way around the leg with stitches about a quarter-inch apart. The thread should be nearly invisible on the outside. Knot off at the end.
If ladder stitch feels fussy, a simple running stitch 3/8 inch from the fold works fine and is actually more durable for jeans.
Step six · 1 minute (machine)
Stitch the hem: machine method
Set your sewing machine to a straight stitch and thread it with matching thread. Stitch along the fold of the hem, about 3/8 inch from the edge. Backstitch at the beginning and end to secure. Go slowly around curves and corners. Remove pins as you approach them. Repeat for the second leg.
A walking foot attachment helps feed thick denim evenly, but it's not essential. Just take your time and let the machine do the work.
How to know your hem is done right
A good hem should be invisible from the outside, sit evenly on both legs, and hold through multiple washes. Try the jeans on and walk around. The hem shouldn't pull, pucker, or create a visible line on the outside of the leg.
Questions at the mirror.
My hem came undone after one wash. What went wrong?
You likely didn't backstitch or knot securely enough at the start and end. Also check that your stitches are close enough together—they should be no more than a quarter-inch apart. For jeans, which get a lot of movement, closer stitches are stronger.
The hem looks bunched on one side. Can I fix it?
Yes. Carefully cut the stitches on that section, re-fold the hem so it's flat and even, re-pin, and re-stitch. It's tedious but worth it for a clean finish.
I cut too much fabric off. Is my hem ruined?
Not necessarily. If you have at least a half-inch of fabric left, you can still fold and stitch a narrow hem. It won't match the original width, but it'll work. If you cut closer than that, you'll need to take the jeans to a tailor.
Should I wash the jeans before hemming?
Yes, ideally. Denim shrinks slightly in the wash, especially in the length. Hem after your first wash so the length stays true through future laundering.