Knitting Blog

Keeping Warm With a Mug Cozy

What do you think about making a mug cozy? January is Hot Tea Month, and I don’t know about you, but I sure have been drinking a lot of that hot liquid lately. With the frigid temps we’ve been having in the Midwest, an afternoon and evening cup of tea have become pretty standard around here. In honor of this, I decided to keep my tea hot and my hands warm by knitting up a quick and simple mug cozy.

Green Knit Mug Cozy with Heart

How to knit a mug cozy



18 stitches x 28 rows = 4 inches

Getting started

You will need to get a few measurements from your mug. This tutorial is based on my favorite mug, but I’ll give you some tips at the end to customize it. My mug’s measurements are as follows:

  • Circumference: 12″
  • Height: 4 ¼”
  • Handle height (measure from base of bottom part of handle to the top): 2 ½”


Cast on 52 sts, join to knit in the round.

Beginning with a purl round, work 4 rounds in garter stitch.

First Stitches: Beginning to Knit a Mug Cozy

You will now work the cozy flat as follows:

Next row (WS): Purl 2, p2tog, purl to 4 sts from end, p2tog, p to end.

Next row (RS): Knit.

Work cozy in stockinette st until piece measures about 1 row more than 2″, ending on a WS row.

K 2, m1L, k to 2 sts - Mug Cozy

Next row: K 2, m1L, k to 2 sts from end, m1R, k to end.

Next row: Purl

Next row: Knit to end, join to knit in the round.

Beginning with a purl round, work 3 rounds of garter stitch.

Bind off all sts.

Weave in ends.


I finished my mug cozy by freehanding a little heart using duplicate stitch. See our duplicate stitch knitting tutorial for more information.

Customizing your cozy

When choosing which mug to make your cozy for, I’d suggest a mug with straight sides and minimal about of curves. You will need to measure your mug’s circumference, height and handle height before beginning. Determine how wide you will make your cozy by subtracting about 1 ¼” from the height.

After checking your gauge, cast on enough stitches for a circumference that is about ½” to 1″ less than your mug circumference. Work in the round with your preferred edging for about ½”. At this point begin working in rows, decreasing two stitches on the first row, to make room for your mug handle. Work even until the flat portion measures the height of your handle, increase two stitches and then begin working in the round again. Continue with this until your cozy measures the width you determined earlier. Bind off and there you have it!

Note: If you have a mug that has a very tall handle, I’d suggest working the entire cozy flat and adding a button or other closure to keep it snug.

What projects are you knitting up to keep warm this winter?

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