How To Know What Sewing Machine Needle To Use
by Kelsi Watts: You should consider the type of fabric you'll be sewing. Different fabrics require different needle sizes and types, so it's important to choose a needle that is appropriate for the fabric you're using.
A heavy fabric like denim will require a thicker and stronger needle, while a delicate fabric like chiffon will require a thinner and more delicate needle. Also, consider the type of thread you'll be using.
Different thread types, such as cotton, polyester, and nylon, require different needle sizes and types, so it's important to choose a needle that is compatible with the type of thread you're using.
You can consult your sewing machine manual or a sewing supply store to help determine the right needle size and type for your project.
What a 90 14 needle is used for
90/14 needles are suitable for medium weight fabrics, slightly heavier weight cotton, polyester, linen and lightweight upholstery fabric. Lighter weight fabrics such as silk require a smaller sized needle. The lighter the fabric, the smaller the needle required.
What the numbers on sewing machine needles mean
The numbers assigned to sewing machine needles represent the fabric thickness they are able to sew. Larger numbers are capable of sewing thicker fabric. Conversely, smaller numbers are for sewing lighter weight fabrics. Care must be taken to match needle size with project material for best results.

Choosing the best needle for free motion quilting
For free motion sewing machine quilting choose the needle size that best suits the weight of your thread. As a general rule 40 wt thread requires a size 75 needle. Unless you are piecing together extra thick padding a small to medium sized needle that is sharp to slightly rounded will work fine.
How to tell the difference between sewing needles
Larger needles have a smaller number while smaller needles have a higher number. Example, a size 18 needle is thicker and longer than a size 24, which is shorter. To discover which you like best try a variety of brands, types, and sizes until you find one you are most comfortable using.
Needle size for sewing vinyl
Vinyl is a heavier weight fabric requiring a larger size needle to handle thickness without breaking. Before starting your next vinyl project, prep your sewing machine with a leather or denim needle size 90/14. For perfectly symmetrical stitches in vinyl use a denim twin needle.
About size 11 sewing machine needles
Size 11 needles work well on light-medium weight knit fabrics and are the recommended needle size for light to medium weight embroidery. Size 11 works especially well when quilting with polyester thread. A size 11 needle should be part of a good basic sewing kit.
Sewing machine needles that work on leather
Cutting point sewing machine needles work well on heavy leather materials. For lighter weight leather something like an R point Groz-Beckert sewing needle works well. R point needles are considered sharp enough to punch through light leather quite easily.
Different sizes of sewing machine needles
The numbers on sewing machine needle packages represent the thickness of the fabric you are able to sew with those specific needles. The larger the number, the thicker the fabric you can sew. Conversely, smaller needles are for sewing finer fabrics.
What the colors on sewing machine needles mean
Most new household sewing needles have two bands of color. The top color band indicates needle type and the lower color band indicates needle size. Special use needles, like those used for hemstitching, double eye, and quick threading, only have one color band to identify needle size.