SewSpecSewing and embroidery machines, researched from makers' manuals
Units

Sewing Machine Tension Settings: What Number to Use

Guide type
Troubleshooting
Last reviewed
Sources
18 cited
Tested by us
No. How we research

As an Amazon Associate I earn from qualifying purchases. We earn a commission if you buy through some of our links, at no extra cost to you. It never changes what we recommend.

Short answer

Start at your machine's default, then adjust on a scrap of your fabric. On SINGER's 4452 the basic setting is "4", with most sewing between 3 and 5; Brother's help pages say "between 4-5" for many dial models; Janome's 6260QC uses "Auto" for general sewing.1,2,3 No maker we read publishes a tension chart by fabric. SINGER says it plainly: "There is no single tension setting appropriate for all stitch functions, thread or fabric."1 What manuals do publish is a range for each stitch, and a needle, thread and stitch length for each fabric.

The default setting, maker by maker

Default or normal tension, as each maker writes it
Maker and machineWhat the maker says
SINGER 4452 (dial)Basic setting “4”; most sewing between 3 and 51
SINGER HD4552“use a thread tension between 3–5”12
SINGER Heavy Duty 6800C“3 to 5 is normal for most regular sewing thread”13
Brother CS7000X familyWhen a misthreaded bobbin shows on top: return the dial to “4”, then rethread the bobbin4
Brother, many dial models (help)“between 4-5”2
Janome 6260QC“Auto” for general sewing3
Janome MC8900QCPAUTO; the screen shows the setting for each pattern14
HUSQVARNA VIKING Opal 650“Normal top thread tension is set to 4-6”8
BERNINA 335Set at the factory; the default is where the knob’s mark lines up with the machine’s mark15
Each row names the manual or page it comes from. Other models of the same brand may differ.

JUKI’s manual gives the rule: “the higher the number, the tighter the top thread tension”.5 Don’t go to the bottom of the dial: Brother warns that with the dial “set extremely low, the machine may stop stitching during sewing”, and says to increase it slightly.16

Tension by stitch: the real chart

Some manuals print a tension range next to each stitch. These are the closest thing to a tension cheat sheet that makers publish.

Tension ranges per stitch in two manuals
StitchJUKI HZL-LJanome JW5622
Straight stitch2 to 62 to 6
Zigzag3 to 72 to 5
Overcasting3 to 7 (zigzag overcast)1 to 4
Stretch stitches3 to 6 (triple stretch: 2 to 6)2 to 6 or 3 to 6, by pattern
Buttonholes1 to 41 to 5 (automatic)
Blind hem, appliqué, satin stitch1 to 4blind hem 2 to 4, appliqué 1 to 4
Gathering1, with a longer stitchnot in this table
JUKI HZL-L series and Janome JW5622 instruction manuals. Your machine's manual may give other numbers.

The rows come from the JUKI and Janome manuals.5,6 The bernette b38 manual prints similar ranges (2 to 6 for straight stitches, 1 to 4 for some others) and sets the tension to 1 for basting.17

Buttonholes, blind hems and appliqué sit at the low end in both manuals. For zigzag and decorative stitches, makers don’t all agree. SINGER: “For zig zag and decorative sewing stitch functions, thread tension should generally be less than for straight stitch sewing.”1 The University of Kentucky guide says the same for decorative stitching and buttonholes: “The tension on the top thread should be slightly looser than the bobbin.”18 But JUKI’s range for zigzag (3 to 7) reaches higher than its straight stitch (2 to 6).5 Start in your own manual’s range.

By fabric: what makers publish instead

Brother’s SE700 chart is a good example: needle, thread and stitch length per fabric, and no tension column.9

Brother SE700 fabric chart (no tension number)
FabricExamplesNeedleStitch length
Lightweightlawn, georgette, chiffon, voile, tulle, lining65/9 to 75/111.8 to 2.5 mm
Mediumbroadcloth, flannel, linen, poplin, satin, quilting cotton75/11 to 90/142.0 to 3.0 mm
Heavydenim (12 oz or more), canvas, tweed, corduroy, velour, vinyl-coated fabric100/16 with 30 weight thread, or 90/14 to 100/16 with 60 weight polyester2.5 to 4.0 mm
Stretchjersey, tricot, T-shirt fabric, fleeceball point 75/11 to 90/14for the fabric thickness
From the Fabric/Thread/Needle Combinations table in Brother's SE700 manual.

For the tension itself, Brother says: “You may need to adjust it when you change fabric or thread.”10 Janome: “Manual tension adjustment may be needed depending on the sewing materials, layers of fabric and other sewing conditions.”3

How to find your own setting

  1. Set the default for your machine (table above) and the stitch range from your manual.1,5
  2. Sew on a scrap of the same fabric, with the same thread and number of layers.4
  3. Read the stitch. Bobbin thread on top: lower the number. Top thread underneath on a straight seam: raise it. The tension troubleshooting guide explains each symptom.10
  4. Turn a little at a time. Kentucky’s guide turns the dial “by half a number” and tests again with a new seam.18
  5. Write it down for that fabric and thread, so next time you start there.

Embroidery is different

On Brother’s SE700, embroidery uses its own target: set the dial “somewhere between 2 to 6”, and “The thread tension is correct when upper thread is just visible on the wrong side (bottom) of the fabric.”9

Questions

Is there a sewing machine tension chart by fabric?

Not from the makers we read. Their fabric charts give the needle, thread and stitch length, and leave tension to a test. Brother: "The appropriate thread tension differs depending on the type of fabric and thread being used", so adjust it "while test sewing on a piece of scrap fabric that is the same as that used in your project."4 The closest thing to a chart is the range per stitch printed in JUKI and Janome manuals, in the table on this page.5,6

What tension for denim and thick fabric?

Makers change the needle and stitch length, not the tension number. SINGER, for denim: a denim style 2026 needle, a straight stitch "with the length regulated between 4 and 5", and topstitching thread "in the upper tension only" with all-purpose thread in the bobbin.7 The only fabric number we found: HUSQVARNA VIKING's Opal 650 manual raises the tension to 7-9 "When topstitching with a heavy weight thread in thick fabric".8

What tension for stretchy fabric and knits?

No maker number. Brother's chart puts stretch fabrics (jersey, tricot, T-shirt fabric, fleece) on a ball point needle 75/11 to 90/14, with a stitch length "appropriate for the fabric thickness".9 For stretch stitches, JUKI gives 3 to 6.5

What tension for thin fabric or chiffon?

Brother's chart lists chiffon with the lightweight fabrics: 60-90 weight polyester thread, needle 65/9 to 75/11, stitch length 1.8 to 2.5 mm.9 If thin fabric puckers, Brother says to shorten the stitch or sew with stabilizer underneath; JUKI adds stabilizer for very fine fabrics.5,10

What tension for cotton, linen and quilting?

Brother's chart puts linen, broadcloth and quilting cotton with the medium-weight fabrics: needle 75/11 to 90/14, stitch length 2.0 to 3.0 mm.9 For the tension, use your straight stitch range (2 to 6 on JUKI's HZL-L and Janome's JW5622) and test.5,6 We found no maker tension number for piecing.

What tension for leather?

We found no tension number from a maker. SINGER's needle table gives a wedge point 14/90 or 16/100 for leather.11

How do tension and stitch length work together?

Both can cause puckering. SINGER's 4452 troubleshooting lists, for gathered or puckered seams, a needle too thick, the stitch length "adjusted wrong" and a tension too tight; HD4552 adds a stitch length "set too short".1,12 JUKI gathers fabric by loosening the tension to "1" and lengthening the stitch.5

Bottom line

Use your maker's default (often 4 on a dial, or Auto on Janome models that have it), the range your manual gives for the stitch, and the needle, thread and stitch length its fabric chart gives. Then sew on a scrap of the same fabric and turn the dial a little at a time.

Related guides

What we checked, and what we didn't

Checked
  • Default tension and ranges per stitch in SINGER, Brother, Janome, JUKI, HUSQVARNA VIKING, BERNINA and bernette manuals
  • Fabric, thread and needle chart in Brother's SE700 manual
  • University of Kentucky Extension guide on adjusting tension
Not checked
  • A tension number per fabric: none of the makers we read publishes one
  • Settings for leather, chiffon, linen or quilting from a maker: not found as tension numbers
  • How these settings sew on your machine: we have not tested them

Sources

  1. Instruction Manual 4443 / 4452 · SINGER
  2. Tension will not set on the sewing machine · Brother USA help
  3. 6260QC Instruction Book · Janome
  4. Operation Manual 888-N00 family (CS7000X) · Brother
  5. HZL-L series Instruction Manual · JUKI
  6. JW5622 Instruction Book · Janome
  7. Singer Machine FAQs · SINGER help center
  8. Opal 650 / 670 / 690Q User's Guide · HUSQVARNA VIKING
  9. SE700 Sewing and Embroidery Machine Operation Manual (888-P10) · Brother
  10. Operation Manual 885/888-X06 family (XM2701) · Brother
  11. Choosing the right SINGER machine needles · SINGER help center
  12. Instruction Manual HD4552 · SINGER
  13. SINGER Heavy Duty 6800C Troubleshooting Tips · SINGER help center
  14. Memory Craft 8900QCP Instruction Book · Janome
  15. BERNINA 335 User Manual (2025) · BERNINA
  16. Help answer 137019 (machine stops when the tension dial is set very low) · Brother USA help
  17. bernette b38 User Manual (2026) · bernette
  18. CT-MMB-213: Adjusting Sewing Machine Tension · University of Kentucky Cooperative Extension

Revision history

2026-11-10First version.