Sergers
Serger Machine vs. Sewing Machine
The short answer
They do different jobs. A sewing machine is the one machine you need to start; a serger is the one you add once knit fabric or professional-looking seams become a regular part of your sewing.
Last updated September 2026
What's covered10
- Serger machine vs sewing machine: the one-line difference
- Serger machine vs sewing machine, side by side
- Why beginners get this mixed up
- What each machine actually handles on a typical garment
- When to add a serger
- Cost and space considerations
- Skill transfer between the two machines
- If you already own both
- A quick reference for which machine to reach for
- Noise, speed and workspace differences
Serger machine vs sewing machine: the one-line difference
A sewing machine builds the garment. It sews seams and zippers. It also sews buttonholes and topstitching. A serger machine finishes the raw edges so they don't fray. It trims the edge and wraps thread around it in the same pass that it sews.
So the two are not rival buys. They do different jobs in the same project. Most garment sewists end up owning both a sewing machine and a serger machine.
Serger machine vs sewing machine, side by side
| Sewing machine | Serger | |
|---|---|---|
| Can build a whole garment alone | Yes | No |
| Trims fabric while stitching | No | Yes |
| Finishes raw edges | Only with an extra step (zigzag, overcast) | Built in |
| Buttonholes and zippers | Yes | No |
| Threads used | 2 | 3-4 typical |
| Speed | Slower, more control | Faster, less stop-and-start |
| Best first purchase for a beginner | Yes | Usually the second machine |
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Why beginners get this mixed up
Ads for both machines use words like "overlock stitch" and "finished seam." That makes the two sound the same. They are not. The "overlock stitch" on a sewing machine copies the look of a serged edge with one needle and a bobbin. It does not trim fabric, and it won't look or wear quite like a real serged seam. See Overlock Stitch for what that setting does and does not do.
Both machines can also join two pieces of fabric. So it can seem that either one could do a whole project alone. In practice, a serged seam is not built to hold a garment together alone where the strain is high.
Think of a waistband or a set-in sleeve. Many patterns ask for a straight seam on the sewing machine first. Then you use the serger only to finish the raw edges.
What each machine actually handles on a typical garment
- Sewing machine: zippers, buttonholes, topstitching, attaching waistbands and collars, any seam that needs to be precisely placed or reinforced.
- Serger: finishing the raw edges of seam allowances, joining knit-fabric seams where stretch and speed matter more than precision, and rolled-hem finishes on lightweight fabric.
When to add a serger
If you sew mostly wovens, you can go a long way with just a sewing machine. Quilting cotton, canvas, quilts and home decor all fit here. A zigzag or overcast stitch handles the edges. A serger earns its cost once you sew knits often: t-shirts, activewear, anything stretchy.
A serged seam stretches with the fabric. A straight seam on a knit often pops its stitches. Sergers for Beginners explains what to look for when you are ready. Best Beginner Overlocker compares models.
Cost and space considerations
A serger is a second machine to buy and store. You also have to care for it. Weigh that honestly against how often you will use it. A beginner serger usually costs less than a mid-range computerized sewing machine.
But it still needs its own spot on a table or shelf. It needs its own needles and thread. It also needs a little care of its own, mostly clearing lint and changing needles now and then.
If space or money decides it, ask how much knit sewing you really do. Say you sew a knit top a few times a year. A sewing machine's stretch stitch and a little patience may serve you better than a second machine that sits idle. If you are building a habit of making clothes, and most of all with knits, a serger pays you back fast in time saved on every seam.
Skill transfer between the two machines
Some of what you learn on a sewing machine carries over to a serger. You already understand thread tension. You know how to guide fabric evenly and how to spot a bad stitch. Two things do not carry over.
The first is threading, since a serger's many thread paths are a new skill. The second is the feel of fabric feeding through at a faster speed. Most sewists find the serger skills click within a few real projects.
If you already own both
Once you have both machines, you move the fabric back and forth between them during a project. You do not finish every seam on one machine before switching. Take a knit t-shirt.
The shoulder and side seams might be sewn and finished together on the serger. The neckband and hem might be done on a sewing machine or a coverstitch machine. Sewing With an Overlocker walks through that kind of mixed workflow on a real seam.
A quick reference for which machine to reach for
- Attaching a zipper: sewing machine.
- Finishing a knit t-shirt's side seams: serger, or a sewing machine's stretch/overlock-style stitch if you don't own one yet.
- Sewing a buttonhole: sewing machine.
- A rolled hem on a lightweight scarf: serger, using its rolled-hem setting.
- Topstitching a visible design line: sewing machine.
- Finishing the inside seam allowance of a lined jacket: serger, or pinking shears/zigzag as a substitute.
Keep a rough version of this list in mind. It helps more day to day than learning every technical difference. Most sewing choices come down to the job in front of you right now.
Noise, speed and workspace differences
A serger usually runs faster and louder than a sewing machine. It is built to race through long seams, not to pause for exact needle placement. Keep that in mind when you choose where to set it up, most of all if your sewing space is near living areas. Sergers also shed more thread bits and lint because they cut as they sew. A small mat or tray under the machine makes cleanup easier and protects the table.
FAQ
Can a serger sew a straight seam like a sewing machine?
It can sew a seam, but it can't do it in isolation the way a sewing machine can. A serger's stitch trims and finishes the edge at the same time, so it's built for edge-finishing, not general construction like zippers or buttonholes.
Which should a total beginner buy first?
A sewing machine. It's the one machine that can build a full garment or project on its own. A serger is a second-machine purchase once you know what you're using it for.
Do professional sewists use both?
Most do. A sewing machine handles construction, zippers, buttonholes and topstitching; a serger handles fast, clean seam finishing, especially on knits.