How to hem pants (2026)
Quick Answer
To hem trousers, first decide the finished length while wearing the shoes you plan to use, then mark and fold the fabric evenly on both legs. Press the new fold, secure it, and stitch by machine, by hand, or with iron-on hem tape depending on the fabric and the finish you want. The key is measuring both legs from the same reference point and pressing before sewing, so the hem hangs straight and looks intentional.
Overview
Hemming trousers is mainly about getting the length right, keeping both legs even, and choosing a finishing method that suits the fabric. A basic hem can be done at home with a sewing machine, a needle and thread, or hem tape if you want a quicker no-sew option. The usual process is to wash and dry the trousers first if they are washable, try them on with the right shoes, mark the new length, trim excess fabric only after checking both legs, then fold, press and secure the hem before stitching. Pressing is not optional if you want a neat result: it sets the fold so the fabric stays in place and is easier to sew accurately. The best method depends on the trousers. Casual cottons and workwear are usually fine with a simple machine hem, while dress trousers often look better with a hand-sewn blind hem that is less visible from the outside. If the fabric frays heavily, finishes poorly under heat, or the trousers have a very wide original hem, test on an inside seam allowance first and preserve as much of the original finish as practical.
Who this is for
Anyone shortening ready-made trousers at home, from beginners doing a basic casual hem to home sewers wanting a neater hand-finished result.
What you’ll need
- trousers to be hemmed
- the shoes you expect to wear with them
- measuring tape or ruler
- tailor's chalk, washable fabric marker, or pins for marking
- sharp fabric scissors
- iron and ironing board
- pins or sewing clips
- needle and matching thread
- sewing machine if using a machine hem
- hem tape if using a no-sew method
- seam gauge if you have one
Before you start
Check the care label and fabric type first. If the trousers are washable, launder and dry them the way you normally would before hemming, because some fabrics can change after cleaning. Try the trousers on with the correct shoes and make sure the waistband is sitting where you actually wear it. Look at the original hem depth and construction before unpicking or cutting anything, especially on dress trousers, lined trousers, very flared legs, jeans with original distressing, or fabrics that may show old fold lines.
Step-by-step
- 1
Prepare the trousers
Wash and dry washable trousers according to the care label, then press out major creases. Turn them right side out and inspect the existing hem, noting whether it is machine stitched, blind stitched, or very deep.
Why: Cleaning first helps avoid a finished hem changing after the first wash. Inspecting the original hem helps you choose a method that matches the garment and avoids surprises such as visible old crease lines.
- 2
Mark the finished length
Put the trousers on with the shoes you plan to wear most often. Fold one leg up to the length you want, pin it in place, and check the look in a mirror from the front and side. Mark the finished length on both legs using chalk, pins, or a removable fabric marker, measuring from the same point on each leg so they match.
Why: Trousers can sit differently depending on shoes and waistband position. Marking while worn gives a practical length, and using the same reference point on both legs prevents an uneven hem.
- 3
Add allowance and trim carefully
Take the trousers off and lay them flat. From the finished-length marks, measure down enough fabric to turn up a secure hem, keeping that allowance consistent all the way around each leg. Mark the cutting line only if excess fabric needs removing, then cut neatly and evenly.
Why: You need extra fabric below the finished length to create the fold that forms the hem. Cutting only after checking the marks reduces the risk of making the trousers too short.
- 4
Fold and press the new hem
Turn the raw edge up to create a clean first fold if needed, then fold again to the marked finished length, or follow the simplest fold that suits the fabric and original construction. Pin or clip the hem evenly all the way around and press thoroughly with an iron suitable for the fabric. Use a pressing cloth on delicate or shiny materials.
Why: Folding hides the raw edge and helps prevent fraying. Pressing sets the crease, keeps the hem even, and makes sewing much easier and neater.
- 5
Secure the hem
Sew the hem in place using your chosen method. For casual trousers, stitch close to the inner folded edge by machine. For dress trousers, use a hand-sewn blind hem that catches only a few threads of the outer fabric. For a no-sew finish, apply hem tape strictly following the product instructions and fabric suitability on the packaging.
Why: Different trousers benefit from different finishes. A machine hem is strong and quick, a blind hem is discreet, and hem tape works when you want speed or do not sew, provided the fabric tolerates the heat and adhesive.
- 6
Press and check both legs
Give the hem a final press, let it cool flat, then compare both legs side by side and try the trousers on again. Check that the hems sit evenly and that the stitching does not pucker or pull.
Why: Final pressing settles the hem and improves the look immediately. A last fitting catches small unevenness before the trousers go into regular wear.
Why this works
A trouser hem works because the fabric is folded to create a stable edge, then fixed in place so the trouser leg hangs at a controlled finished length. Measuring carefully, pressing the fold, and matching both legs are what make the result look balanced rather than improvised.
Common mistakes to avoid
- Hemming before washing washable trousers, then finding the length changes after cleaning
- Measuring one leg and assuming the other matches without checking
- Cutting fabric before confirming the final length on the body
- Skipping pressing, which often leads to a wavy or twisting hem
- Using visible machine stitching on formal trousers where a blind hem would look better
- Applying too much heat to delicate fabric or hem tape without checking the care label and product instructions
Troubleshooting
One leg looks longer than the other
Measure both legs again from the same reference point, such as the crotch seam or an existing horizontal point on the garment, then re-press and resew the longer side if needed.
The hem looks bulky
Reduce excess allowance if there is too much folded inside, grade thick seam areas carefully, and press thoroughly. Very heavy fabrics may need a simpler construction or professional shortening.
Stitching shows too much on the outside
Use matching thread, lengthen or refine the stitching method, or switch to a hand blind hem on dress trousers.
The fabric puckers after sewing
Remove the stitches and repress the hem flat. Check thread tension, avoid stretching the fabric while sewing, and pin or baste more evenly before resewing.
Hem tape will not hold properly
Check that the fabric is suitable for fusible products and that you followed the tape instructions. If the fabric finish resists adhesive or the hem is heavy, sew the hem instead.
Compare your options
Machine-sewn hem
Best for: Casual trousers, school trousers, workwear, sturdy cottons and blends
Pros: Fast, durable, straightforward for beginners
Cons: Usually visible from the outside and can look less refined on formal trousers
Hand-sewn blind hem
Best for: Dress trousers, suit trousers, finer wool or tailored garments
Pros: Neater and less visible from the outside, more traditional finish
Cons: Slower and requires more patience and control
Iron-on hem tape
Best for: Quick fixes, temporary use, people without sewing tools
Pros: No sewing needed, convenient and simple
Cons: Less durable on some fabrics, relies on heat compatibility, may fail after repeated laundering or on heavy hems
| Option | Best for | Pros | Cons |
|---|---|---|---|
| Machine-sewn hem | Casual trousers, school trousers, workwear, sturdy cottons and blends | Fast, durable, straightforward for beginners | Usually visible from the outside and can look less refined on formal trousers |
| Hand-sewn blind hem | Dress trousers, suit trousers, finer wool or tailored garments | Neater and less visible from the outside, more traditional finish | Slower and requires more patience and control |
| Iron-on hem tape | Quick fixes, temporary use, people without sewing tools | No sewing needed, convenient and simple | Less durable on some fabrics, relies on heat compatibility, may fail after repeated laundering or on heavy hems |
Alternatives
- Take the trousers to a tailor for a blind hem or to preserve the original finish
- Use fabric clips and temporary hemming tape for a short-term fix before sewing permanently
- For jeans, ask for an original-hem shortening if you want to keep the factory-worn edge
Pro tips
- Mark the length on the wearer if possible; flat measurements alone can be misleading.
- Press after each fold instead of only at the end.
- Test chalk, marker, heat and any fusible tape on an inside area first.
- If the original hem line leaves a visible crease, try steaming and pressing before finishing.
- Keep thread colour close to the fabric, especially if you are topstitching.
Safety notes
- Use fabric scissors carefully and keep fingers clear when trimming.
- Take care with hot irons and steam, especially on synthetic fabrics that can scorch or melt.
- Unplug the iron when not in use and follow the manufacturer's safety instructions.
- Keep pins contained so they do not end up on the floor.
What this guide does not cover: This guide covers a standard trouser hem only. It does not give a full method for original-hem jean alterations, lined trouser reconstruction, leather or suede hemming, or advanced tailoring techniques.
Cost considerations
Home hemming is usually low-cost if you already own basic sewing tools. The main added costs are thread, hem tape, or possibly an iron and needlework supplies if you do not have them. Professional hemming can be worthwhile for formalwear, lined trousers, delicate fabrics, or when preserving the original finish matters.
Frequently asked questions
Can I hem trousers without a sewing machine?+
Yes. You can hand sew a blind hem or use iron-on hem tape if the fabric and care label allow it. Hand sewing is usually the more durable and tidy option for dress trousers.
Should trousers be hemmed with shoes on?+
Yes, ideally with the shoes you expect to wear most often. Shoe height changes how the trouser leg falls, so marking without shoes can give the wrong finished length.
How do I stop the raw edge from fraying?+
A double fold usually encloses the raw edge. If the fabric frays heavily, you can also finish the edge before hemming with an overlocker, zigzag stitch, or another seam finish if you sew.
Can I keep the original hem on jeans?+
Yes, but that is a specific alteration method and is more fiddly than a basic hem. It is often worth having done professionally if you want to preserve factory wear marks and stitching.
What if I am between two lengths?+
Choose based on the shoes and look you will wear most. If unsure, leave a little extra allowance inside if possible so small future adjustments are easier.
Sources & references
Guidance on this page is traced to documented sources. Last checked 24 September 2026.
- Singer · manufacturer
Supports standard home-sewing methods and tool use for hemming with a sewing machine or by hand.
Basic trouser-hemming technique changes very little over time, though product-specific instructions for fusible tapes and fabric care should always be checked.