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How to Hem Jeans with the Original Hem

Written by Carmen Barkley · This post may contain affiliate links · 1 Comment

1.7K shares

Learn how to hem jeans like a pro while preserving the original, faded hem with this step-by-step sewing tutorial.

Knowing how to hem jeans is a useful skill for anyone to have, whether you're into sewing or not. Being able to hem your own jeans is an absolute lifesaver (and money-saver) if you're short and can never find jeans that fit your legs properly. No more shopping for specialty jeans or spending money at a tailor!

how to hem a pair of jeans with the original hem

But honestly, it's a great skill for anyone to learn, short or not! If you know how to easily hem jeans, you have more options while shopping for pants. Plus, if you have kids, you can hem their pants to fit perfectly and keep those hems from dragging in the dirt!

Table of Contents

  • Why Keep the Original Hem when Hemming Jeans?
  • The 3 Main Jean Leg Styles
  • Supplies to Hem Jeans with Original Hem
  • Step 1: Pin and Mark the New Hem
  • Step 2a: Stitch the New Hem (Straight Leg Jeans)
  • Step 2b: Stitch the New Hem (Flared Jeans)
  • Step 2c: Stitch the New Hem (Skinny/Tapered Jeans)
  • Step 3: Finish the Raw Edges

Why Keep the Original Hem when Hemming Jeans?

The key to achieving a professional, it-looks-like-you-bought-them-this-way look when hemming jeans is to preserve the original hem.

The hem of jeans is different from other pants because it usually has some fading and a worn, distressed look even when the jeans are brand new. Removing this unique feature of your jeans when shortening the pantlegs will make the jeans appear "off" and draw attention to your new hems.

In this tutorial, I'll be showing you how to professionally hem your jeans while maintaining the original hem.

The 3 Main Jean Leg Styles

While it would be nice if all jeans could be hemmed using the exact same method, the different leg cuts make that impossible! These three primary leg styles each require a slightly different hemming technique:

  • Straight leg jeans: In straight leg jeans, the width of the lower leg of the pants is the same all the way down (from the knee to the hem). This style includes standard straight leg pants and wide leg pants with a straight cut.
  • Flared jeans: Flared jeans are wider at the hem than at the knee. The pantlegs of this style get gradually wider from the knee to the hem.
  • Tapered jeans: Tapered jeans are just the opposite of flared jeans. The pantlegs get narrower from the knee to the hem, meaning that the hem is narrower than the width at the knee. Skinny jeans also fall into this category.
the three jean leg styles are straight, flared, and tapered

Below, I've separated Step 2 (Sewing the New Hem) into 3 sections, each corresponding to one of the 3 jean leg styles. Steps 1 (Marking the Hem) and 3 (Finishing the Raw Edges) are the same for all three styles.

Supplies to Hem Jeans with Original Hem

First, here are the supplies you'll need to hem your jeans (regardless of the leg style).

  • Jeans that Need Hemmed
  • Scissors
  • Quilting Ruler
  • Fabric Pen or Marker
  • All-Purpose Thread Matching the Color of Your Jeans
  • Topstitching Thread Matching the Topstitching on Your Jeans
  • Denim/Jeans Sewing Machine Needle
  • Topstitching Sewing Machine Needle
  • Seam Ripper
  • Sewing Pins
  • Iron & Ironing Board
  • Tape Measure
supplies needed to hem jeans with the original hem

Step 1: Pin and Mark the New Hem

Start by trying on the jeans that you plan to hem. On one of the legs, fold the hem up to the right side to the height you want your finished hem at.

Make sure to stand up straight and evaluate the hem before deciding you're happy with it - the hem will look different when bent over than when you're standing straight!

Once you like the location of the folded hem, pin it in place with a couple of sewing pins. Then, take the pants off and bring them to your sewing table.

pin the hem in place

Using a fabric pen or chalk, mark the right side of the pantleg at the center of the fold. I find it easiest to simply make one mark near the center front of the pant.

mark the hem length

Next, lay the marked pantleg flat, carefully aligning the back and front hems and the side seams.

the jeans hem is marked

On the marked pantleg, measure how far up from the current hem your mark is at. Then, mark around the entire pantleg at that same height. Use your ruler to measure up from the hem to get your line at the right height.

draw a line at the desired hem length
hem length is fully marked

Next, draw another straight line around the pantleg 1/2 inch above your first line.

draw a line 1/2 inch above the desired hem length
first pantleg hem is marked

Use your ruler to draw in 2 lines on the second pantleg that are the exact same distance from the hem as the first pantleg. It's critical to make sure that these lines are identical - you don't want your two hems at different heights!

repeat to mark the other leg's hem

Step 2a: Stitch the New Hem (Straight Leg Jeans)

For straight leg jeans, start by folding the hem of each pantleg up to the right side, matching the folded topstitched edge of the hem with the upper marked line on the pant. Pin the hem in place on both pantlegs.

pin straight leg jeans hem

Now it's time to start sewing! Put a zipper foot on your sewing machine so that the needle is to the left of the foot. Thread your machine with all-purpose thread and use a denim needle.

put a zipper foot on your sewing machine

If your sewing machine has this capability, move the needle to the far left edge of the foot. The closer you can get the stitching to the original hem, the more professional your hem will look.

move the needle to the left of the zipper foot

Next, place the first hem under the foot, lining up the original hem along the left edge of the zipper foot.

stitch along the original faded jeans hem

Sew around the entire hem, stitching as close to the original hem as possible and making sure to backstitch at the beginning and end.

how to hem jeans with original hem

Trim your thread tails, then repeat the process to sew the second hem in place.

trim thread tails

*PRO TIP: If these jeans are for a child, I highly recommend that instead of trimming and finishing the excess fabric, leave it intact so it can be let out later. Press the excess fold of fabric up away from the hem, pin it in place, then hand sew the fold to the pantleg with a whipstitch. This allows you to easily release the hem to lengthen the jeans as your kid grows! Note that this only works for straight leg jeans.

press folded fabric up and whipstitch for a hem that can be lengthened later

However, if you prefer to get rid of the big folds of fabric inside the pantlegs, trim the excess fabric to 1/2 inch, then head on to Step 3!

trim away excess seam allowance

Step 2b: Stitch the New Hem (Flared Jeans)

For flared leg jeans, start by cutting along the lower marked line on each pantleg to remove the lower portion of the legs.

cut off bottom of flared jean legs

Then, measure 1/2 inch above the top folded edge of the finished original hem and draw a straight line across each lower pantleg.

mark 1/2 inch above the original hem of flared jeans

Cut the original hem off of each lower pantleg, cutting along the lines you just drew.

cut off the original hem of flared jeans

Set aside the middle piece that you cut out of each pantleg.

set aside excess fabric

Measure the circumference of the original hem with a tape measure. In my case it was 16.5 inches.

measure the original flared jeans hem

Then, measure the circumference of the cut bottom edge of the pantleg. Mine was 15.5 inches.

Find the difference between these two measurements by subtracting the circumference of the pantleg edge from the circumference of the original hem. For example, my hem is 1 inch wider than the pantleg that I need to attach it to.

find the difference between the width of the original hem and the pantleg

We need to take this excess width out of the original hem at the inseam or the outer leg seam - whichever is more inconspicuous. In my case, I chose the outer leg seam because it didn't have the topstitching detail that the inseam did.

To do this, seam rip the topstitching around the outer leg seam or the inseam of the original hem to open up the hem around the seam.

seam rip around the outseam

Open up the folds of the hem around the seam, then pin the seam flat with right sides together.

pin the outseam flat

Stitch a new seam that is 1/2 of your circumference difference to the inside of the original seam.

stitch a new outseam

For example - I needed to take 1 inch total out of my hem, so I sewed my new seam 1/2 inch in from the original outer leg seam. You have to use half of the total measurement since there are 2 layers of fabric in the seam. So, 1/2 inch will be taken out of each layer of fabric, for a total of 1 inch.

stitch 1/2 the circumference difference over from the original seam

Trim the seam allowance to 1/4 inch.

reduce bulk by trimming the seam allowances

Press the seam allowance to one side.

press the seam allowance to one side

Then, pin each hem to the corresponding pantleg with right sides together, lining up the cut raw edge of the hem with the cut edge of the pantleg.

pin the original hem to the cut pantleg of flared jeans

Put a zipper foot on your sewing machine so that the needle is to the left of the foot. If your machine allows, move the needle to the far left edge of the foot. The closer you can get to the original hem, the more professional your finished jeans will look!

Using matching all-purpose thread and a denim needle, stitch each hem to each pantleg, making sure to backstitch at the beginning and end.

stitch the original hem to the pantleg of flared jeans

As you sew, keep your stitching as close to the folded top edge of the original hem as possible.

Trim those thread tails and head to Step 3 to learn how to deal with the seam allowances and finish the hem!

Step 2c: Stitch the New Hem (Skinny/Tapered Jeans)

To hem skinny jeans or tapered leg jeans, first cut the lower portion of each pantleg off, cutting along the lower marker line on each leg.

cut the bottom of the legs off of tapered jeans

Next, measure 1/2 inch up from the original hem on the removed portion of each pantleg and draw a line.

mark 1/2 inch above the original hem of tapered jeans

Cut each original hem off 1/2 inch above the folded upper edge of the hem, using your marked line as a guide.

cut the original hem off of tapered jeans

Then, measure the circumference of the original hem with a tape measure. Mine measured 12 inches.

measure the width of the original hem

Measure the circumference of the cut lower edge of the pantleg as well. My jeans pantleg measured 12.5 inches.

measure the distance around the cut pantleg

Take the difference between these two measurements by subtracting the circumference of the original hem from that of the pantleg. For example, my hem was 1/2 inch smaller than the pantleg edge.

find the circumference difference between the original hem and the pantleg

We now need to add a bit of fabric to the inseam of the hem to make it wide enough to fit to the pant.

Using the excess fabric cut away from the pantlegs, cut 2 pieces of denim that are 2 inches tall by the length of the circumference difference + 1/2 inch. This extra 1/2 inch is added for seam allowance. So, mine were cut 2" x 1".

cut 2 extension pieces from extra denim

Next, seam rip the topstitching around the inseam of one of the hems to open it up.

seam rip the topstitching around the inseam of the original hem

Then remove the stitches of the inseam to free the two edges of fabric.

open up the inseam of the original hem
the original hem of tapered leg jeans is opened up at the inseam

Pin one of your cut pieces of extra fabric to one of the raw edges of the opened up inseam with right sides together. The two-inch side of the piece should be vertical with the hem.

pin the extension piece to one side of the original hem

Stitch the piece of fabric to the hem with a 1/4 inch seam allowance.

stitch the extension piece to the original hem on one side

Next, pin the other 2-inch side of the small fabric rectangle to the other end of the hem with right sides together. Make sure the hem is not twisted!

pin the second side of the extension piece to the original hem

Stitch this second side of the fabric piece to the original hem with a 1/4 inch seam allowance. The hem will now once again be a loop of fabric. Basically, this small piece of denim is acting as an extension of the hem.

stitch the second side of the extension to the original hem

Press the seam allowances of the extension piece away from each other.

press seam allowances away from each other

Then, refold and press the hem along the original folds, pressing the new extension to match the original hem.

refold and press the original jeans hem

Repeat this process to add the other extension piece to the other hem.

the tapered leg jeans hems are extended to fit the pantlegs

Next, pin each hem to the corresponding pantleg with right sides together. Match up the upper cut edge of the hem with the lower cut edge of the pant.

pin the original hem to the pantlegs right sides together

Then, put a zipper foot on your sewing machine so that the needle is to the left of the foot. If your machine has this capability, move the needle to the far left edge of the foot. The closer you're able to sew to the original hem, the more professional your results will be.

put a zipper foot on your sewing machine

Using matching thread and a denim needle, line up the first hem under the sewing machine foot, keeping the upper folded edge of the original hem right along the left edge of the foot.

stitch the original hem to the pantleg

Stitch around the entire hem, making sure to backstitch at the beginning and end.

stitch close to the original hem for a professional look

Repeat this process to stitch the other hem onto the other pantleg.

Step 3: Finish the Raw Edges

Your hem is now sewn! But there's still excess fabric inside the pantleg that needs to be dealt with before you can wear your freshly hemmed jeans.

Trim the top layer of the seam allowance to 1/4 inch.

grade the seams attaching the hem to the jeans

Then, seam rip all of the original topstitching from the hem to completely open up the folds of the hem. If you're sewing wide or tapered leg jeans, some of the topstitching will already be removed around the inseam or outer leg seam.

remove the topstitching of the original hem
unfold the original jeans hem

Press both layers of the seam allowance down into the unfolded hem with your iron.

press the seam allowances down towards the hem
the seam allowances are pressed into the unfolded hem

To remove bulk, trim the side seam and inseam out of the seam allowance, trimming close to your stitching, but being careful not to cut through your seam.

remove bulk by cutting the inseam and outer leg seams out of the seam allowances

Fold the original hem back into place, folding it over your trimmed seam allowance to enclose the raw edges inside. Pin the it in place on both pantlegs.

pin the original hem over the raw seam allowances
refold and pin the original jeans hem

Then, stitch around the hems, sewing within the original topstitching lines. I like to use topstitching thread for this to make it look really professional.

topstitch the original jeans hem by following the original topstitching line

*PRO TIP: For most home sewing machines, topstitching works best when using a topstitching needle and using topstitching thread in the needle only. I use regular all-purpose thread in the bobbin. I also like to slightly increase my stitch length to around 3mm and increase my thread tension to around 7 for topstitching thread.

Also, note that your topstitching will need to be sewn from the right side of the fabric!

how to hem jeans while preserving the original hem

Give your freshly hemmed jeans a final pressing with lots of steam and you're done! Enjoy a perfectly fitting pair of jeans!

press your newly hemmed jeans well

What's your favorite method of hemming jeans? Let me know in the comments below!

favorite method to hem jeans

Want to learn more great sewing techniques? Check out one of the tutorials below!

  • How to Sew a Ladder Stitch
  • What is Bias Tape and How to Use It
  • Zipper 101: All About Zippers
how to hem jeans professionally

Don't forget to join my Facebook group where you can show us what you're making, ask questions, and learn from others.

Don’t want to forget this technique? Click here to save this tutorial on Pinterest!

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Comments

  1. Sarah Wale says

    July 02, 2022 at 11:01 pm

    Thanks for this useful tip, especially for the flared jeans.
    May I suggest that when trying on jeans, or any pants of any style, you should always wear the shoes you will mostly wear with that particular pair, e.g. sneakers or boots with jeans, dress shoes with business wear and heels with evening pants. I learnt this the hard way!
    All the best to you and our Sweet Red Poppy community!
    Sarah

    Reply

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