Knitted Phone Case Pattern: Make ALL The Things
There is something deeply satisfying about knitting a practical object. Blankets and scarves are wonderful, but there is a particular joy in finishing something you will use every single day — something that protects a device you probably carry everywhere you go. A knitted phone case is exactly that kind of project. It is small enough to finish in an evening or two, customizable to any phone size, and it makes a genuinely useful gift that feels personal and handmade in all the right ways.
This pattern is designed for knitters at a beginner-to-intermediate level. If you can cast on, knit, purl, and bind off, you have everything you need to complete this project. We will walk through the materials, gauge, sizing, the full written pattern, finishing instructions, and plenty of tips along the way. By the end, you will have a snug, protective, and beautiful case for your phone — and you will probably want to make several more for everyone you know.
Why Knit a Phone Case?
Before we dive into the pattern itself, let us talk about why this is such a worthwhile project. Most store-bought phone cases are made from plastic or silicone. They do the job, but they feel generic. A knitted case, on the other hand, offers a soft layer of cushioning that actually absorbs minor bumps and drops rather than simply resisting them. The texture of the fabric provides grip so your phone is less likely to slide off surfaces. And from an aesthetic standpoint, there is simply nothing like a hand-knitted object — the slight irregularities, the color choices you made yourself, the fact that it came from your own hands.
Beyond the practical and aesthetic arguments, knitting a phone case is a wonderful way to use up yarn scraps. You only need a small amount of yarn for this project, which means your leftover sock yarn or fingering weight scraps from bigger projects finally have a home. You can stripe, add texture, work a small colorwork motif, or keep it plain and elegant. The pattern below is written as a straightforward stockinette tube with a folded-over ribbed cuff, but we will include plenty of notes on how to modify it.
Materials You Will Need
Getting the materials right is the foundation of any good knitting project, and for a phone case, fit is everything. Here is what you will need before you cast on.
Yarn: Approximately 40 to 60 yards of fingering or DK weight yarn. Fingering weight will give you a thinner, more form-fitting case, while DK weight creates something slightly thicker and more cushioned. Wool or a wool blend is ideal because the fibers have natural elasticity and bounce back after being stretched. Cotton yarn works too, though it has less give and may feel a bit stiffer. Avoid very loosely spun or fragile yarns for this project, since the case will be slipped on and off the phone regularly.
Needles: US size 1 to 3 (2.25 mm to 3.25 mm) for fingering weight, or US size 4 to 6 (3.5 mm to 4 mm) for DK weight. You can use double-pointed needles, a short circular needle, or magic loop technique — whichever method you prefer for working small circumferences in the round.
Additional supplies: A tapestry needle for weaving in ends, scissors, and a ruler or measuring tape. A stitch marker is helpful to mark the beginning of your round.
Understanding Gauge
Gauge matters in this project more than you might expect. Because you are making a case for a specific object with specific dimensions, a difference of even one stitch per inch can mean the case comes out too loose to grip the phone or too tight to slide it in and out comfortably.
Recommended gauge: 28 to 32 stitches and 36 to 40 rows over 4 inches in stockinette stitch with fingering weight yarn. For DK weight, aim for 22 to 26 stitches and 28 to 34 rows over 4 inches.
Knit a small swatch before you start. It only takes a few minutes and it can save you from having to rip out and restart a project that took you an evening to knit. Wash and block the swatch the same way you plan to care for the finished case, since some yarns change size after washing.
Sizing Your Phone Case
Phone sizes vary enormously, so this pattern is written as a formula rather than a fixed set of numbers. Before you cast on, measure your phone.
Measure the width of your phone in inches. Measure the height. Note whether you want the case to have a flap or just be an open-top sleeve.
Width calculation: Multiply the phone’s width (in inches) by your stitch gauge (stitches per inch), then multiply by 2 (since you are working in the round and the tube needs to wrap around both the front and back of the phone). Add 2 to 4 stitches of ease depending on how snug you want the fit. Round to an even number.
For example: A phone that is 2.8 inches wide, with a gauge of 7 stitches per inch, gives you 2.8 × 7 × 2 = 39.2 stitches. Add 2 stitches of ease for 41, then round to 42 stitches to keep your stitch count even.
Height calculation: Multiply the phone’s height in inches by your row gauge (rows per inch). This gives you the number of rounds to knit for the body of the case. Add extra rounds if you want a cuff that folds down over the top.
For the rest of this pattern, we will use a sample size based on a common phone width of approximately 2.8 inches and a height of approximately 5.8 inches, knit at a fingering weight gauge of 7.5 stitches per inch and 10 rows per inch. You will adjust all numbers based on your own gauge and phone measurements.
Sample size cast-on: 44 stitches.
Sample body length: 58 rounds (approximately 5.8 inches).
Cuff: 10 rounds of ribbing.
The Pattern: Knitted Phone Case
Cast On
Using your preferred method for cast-on in the round, cast on 44 stitches (or your calculated number). Join to work in the round, being careful not to twist your stitches. Place a stitch marker to mark the beginning of the round.
Ribbed Cuff
Round 1 through Round 10: Knit 2, purl 2 to end of round.
This 2×2 ribbing creates a stretchy cuff at the top of the case that will grip the phone gently and prevent it from sliding out. Ten rounds gives you about an inch of ribbing at fingering weight. If you want a longer fold-over cuff that you can turn down over the top of the phone, work 20 rounds of ribbing instead.
Body
Round 11 onward: Knit every stitch in every round (stockinette stitch in the round).
Continue in stockinette until the body of the case measures the height of your phone. For our sample size, this is approximately 58 rounds from where the ribbing ended, bringing the total body length to the phone’s height.
As you knit, check the length regularly by slipping your phone inside the tube. The phone should reach all the way to the bottom with about half an inch of ease at the top (this will be folded in when you close the bottom seam, or it will naturally compress when the phone sits inside).
Tip: If you want to add a stripe, this is the easiest place to do it. Simply switch colors at the beginning of a round and carry the unused yarn up the inside of the tube for up to a few rows, or cut and rejoin for a clean look.
Tip: For a simple textured stitch pattern, try working the body in seed stitch (knit the purls and purl the knits of the previous round) or a simple 1×1 rib. Both add grip and visual interest without complicating the pattern significantly.
Bottom Closure
Once the body is the correct length, you need to close the bottom of the tube. There are two ways to do this.
Method 1 — Three-needle bind-off: Divide your stitches evenly onto two needles so that you have 22 stitches on each needle (or half your total stitch count on each). Hold the needles parallel with wrong sides together. Using a third needle, knit one stitch from the front needle and one stitch from the back needle together, then pass the first stitch over the second stitch as you would in a regular bind-off. Continue across the row until all stitches are bound off. This creates a slightly visible seam along the bottom inside the case, which most knitters find perfectly tidy and unobtrusive.
Method 2 — Kitchener stitch (grafting): For a completely seamless bottom, use Kitchener stitch to graft the bottom closed. Divide your stitches onto two needles as above. Thread a tapestry needle with a length of yarn and work through the stitches in the traditional Kitchener stitch sequence: through front stitch as if to purl, leave on needle; through back stitch as if to knit, leave on needle; through front stitch as if to knit, remove from needle; through next front stitch as if to purl, leave on needle; through back stitch as if to purl, remove from needle; through next back stitch as if to knit, leave on needle; repeat from until all stitches are grafted. The result is an invisible join that looks like a row of knitting.
Kitchener stitch takes a bit of practice if you have never done it before, but it is worth learning. For a phone case where the bottom seam is not visible anyway, the three-needle bind-off is a perfectly fine and faster option.
Finishing
Weave in all ends carefully using a tapestry needle. Work the ends in along the path of existing stitches rather than straight across, which helps them stay hidden and secure through regular use.
Wet block the finished case if you want to even out your stitches and settle the fabric. Soak it in cool water for about ten minutes, squeeze out the excess water gently in a towel, and then slip the phone (or a piece of cardboard cut to the same dimensions as the phone) inside to block it to the correct shape. Let it dry fully before using it.
Variations and Customizations
One of the greatest things about a pattern this simple is how much room there is to make it your own. Here are some ideas worth exploring.
Colorwork motif: If you are comfortable with stranded colorwork, you can work a small motif into the body of the case. A heart, a geometric diamond, a simple chevron, or even your initials can be charted onto graph paper and knit using two colors carried across the round. Keep the floats short — no more than five stitches — to prevent the inside of the case from snagging.
Button or snap closure: If you want a flap that folds over the top of the phone, simply continue knitting past the phone’s full height for another 2 to 3 inches, then switch to ribbing for a few rows and bind off. Sew a button onto the outside of the case body and create a small loop at the end of the flap using a few chain stitches in yarn or a small piece of elastic cord.
Embroidery: Once the case is complete, add a small embroidered motif using a tapestry needle and contrasting yarn. Simple cross-stitch or outline stitch flowers, stars, or abstract shapes look lovely on the stockinette background.
Slip stitch colorwork: This is a great technique for adding color without managing two strands at once. Alternate two colors every two rounds, and on each round, slip the stitches that belong to the other color. This creates a woven, houndstooth-like effect with very little extra effort.
Carrying cord: For a case that can double as a small pouch you can loop over your wrist, work an I-cord of about 12 inches and attach it to the side of the case. Alternatively, pick up a few stitches along one side edge and work a few rounds of I-cord directly off the case before binding off.
Care Instructions
How you care for a knitted phone case depends entirely on the fiber you used. Wool cases should be hand washed in cool water with a gentle wool wash, squeezed (not wrung) to remove water, and laid flat to dry. Many superwash wool yarns are machine washable on the gentle or wool cycle — check the label of your specific yarn for guidance.
Cotton cases can typically be machine washed, which makes them a practical choice if you want something easy to maintain. Acrylic yarns are also machine washable and very durable, though they have less natural elasticity than wool blends, so consider sizing them a stitch or two tighter than the formula suggests.
It is a good idea to remove your phone from the case before washing. Despite wool’s natural water resistance, you really do not want moisture near your phone’s ports or speaker grilles.
Gift-Giving Ideas
A knitted phone case is one of the best small gifts you can make for someone. It is thoughtful, handmade, and genuinely useful. The key to making it a perfect gift is getting the sizing right without spoiling the surprise, which usually means doing a little research beforehand. If you know the person’s phone model, you can find the exact dimensions online and knit accordingly.
Consider making a matching set — a phone case and a small zip pouch or coin purse in the same yarn. Or knit several cases in different colors so the recipient can swap them out depending on their mood or outfit. Presented in a small box with a handwritten care card explaining how to wash and care for the case, this project elevates from a small craft to a genuinely lovely gift.
Troubleshooting Common Issues
The case is too tight: Your gauge may be tighter than expected, or you may not have added enough ease. If the case is already finished, you can try blocking it aggressively by stretching it over the phone while it is damp. If it is significantly too tight, it is usually easier to start over with a few more stitches cast on or move up one needle size.
The case is too loose: The phone slides around inside. Try blocking the case tightly around a slightly undersized form so the fabric contracts a little as it dries. In future versions, add the ribbed cuff to both the top and the bottom of the case, since ribbing contracts and grips more than stockinette. Or simply start again with fewer stitches or a smaller needle.
Laddering on double-pointed needles: If you see vertical lines of looser stitches where your needles join, try pulling the yarn slightly tighter when you move from one needle to the next, or rearrange which stitches sit at the needle joins.
The bottom seam is puckering: This usually happens with three-needle bind-off when the tension is uneven. Try to keep a consistent, somewhat relaxed tension as you bind off. If the pucker is dramatic, switch to Kitchener stitch for the bottom closure.
Final Thoughts
A knitted phone case is proof that the best projects are not always the biggest ones. In an afternoon or two of knitting, you can make something that goes everywhere with you, that reflects your taste and your skills, and that will last as long as you care for it. The pattern is simple enough to let the yarn do the talking — choose a beautiful hand-dyed yarn and even plain stockinette will look stunning. Or use the simplicity of the structure as a canvas for colorwork, texture, or embellishment.
Once you have made one, you will want to make more. There is something almost compulsive about a project this satisfying and this fast. Give them away, keep a rotation of your favorites, use up every last skein of beautiful fingering weight you have been hoarding. Make all the things. Knit all the cases. Your phone — and everyone else’s — deserves something made with your own hands.
