Convertible Mittens (with Thumb Flaps!)
- Oct 19, 2022
- 4 min read
Updated: Oct 31, 2022
With very easy construction and no seaming, this free convertible mitten pattern is as easy as they come. Finally, the best of both worlds--you can keep your hands warm while still having your fingers free!

Materials:
Bulky (#5) yarn: approx. 90/110/130 yd
I'm a big believer in the versatility of yarn; as long as you can achieve or adjust the gauge and the quality, drape, etc. of the fabric is to your liking, feel free to substitute with any yarn you like! Personally, I used K+C Luxe Craft Angel Hair Yarn.
Sizes I (5.5mm) & J (6mm) hooks, or hooks needed to obtain gauge
Yarn needle
Scissors
Stitch markers
Optional: 2 buttons
Measurements:
Child: 5″ wide at widest point (including thumb) x 9.5″ long
Adult Woman: 5.5" wide at widest point (including thumb) x 10.5" long
Adult Man: 6" wide at widest point (including thumb) x 11.5" long
Gauge:
4" square = 24 stitches x 10 rows in hdc
Stitches & Abbreviations:
ch = chain
sc = single crochet
BLO = back loop only
hdc = half double crochet
sl st = slip stitch
inc = increase
hdc2tog = half double crochet 2 together
Notes:
-This pattern is written in US crochet terms.
-Turning ch 1 at beginning of round and sl st to join at end of round do not count as a stitch.
-Sl st to join should always be done in first st of round.
-"10 hdc" means 1 hdc in the next 10 stitches.
-This pattern is written in sizes Child/Adult W/Adult M (e.g.: "5/7/9 hdc" means 5 hdc for Child, 7 hdc for Adult Woman, and 9 hdc for Adult Man). If there is only one number, it applies to all sizes.
-Model's hands are 3.75" wide at widest point (including thumb) and 6" long; model wears mittens in size Child.
Pattern
Cuff (make 2):
Using size I (5.5mm) hook,
Foundation: Make a slip knot, then ch 5/6/6 [If you'd like a longer cuff, add more chains here]
R1 (RS): 1 sc in 2nd ch from hook and each ch across (4/5/5)
R2-15/16/17: Ch 1, turn, 4/5/5 sc BLO (4/5/5)
Ch 1, turn, 4/5/5 sl st BLO through Foundation row and R15/16/17. Flip cuff inside-out to hide bump. Do not fasten off; proceed to Mitten Body.
Mitten Body:
Using size J (6mm) hook,
R1: Ch 1, turn, 1 hdc in each row, 1 sl st to join (16/17/18)
R2: Ch 1, turn, 1 hdc inc, 14/15/16 hdc, 1 hdc inc, 1 sl st to join (18/19/20)
R3: Ch 1, turn, 1 hdc inc, 16/17/18 hdc, 1 hdc inc, 1 sl st to join (20/21/22)
R4: Ch 1, turn, 1 hdc inc, 18/19/20 hdc, 1 hdc inc, 1 sl st to join (22/23/24)
R5: Ch 1, turn, 1 hdc inc, 20/21/22 hdc, 1 hdc inc, 1 sl st to join (24/25/26)
R6-9/10/11: Ch 1, turn, 24/25/26 hdc, 1 sl st to join (24/25/26)
R10/11/12 (thumb hole): Ch 1, turn, 18/18/19 hdc, skip 5/6/6 sts, 1 sl st in last hdc (19/19/20)
R11/12/13: Ch 1, turn, 1 hdc in sl st to close the gap, 18/18/19 hdc, 1 hdc in sl st to close the gap, 1 sl st to join (20/20/21)
R12/13/14-14/16/17: Ch 1, turn, 20/20/21 hdc, 1 sl st to join (20/20/21)
Fasten off.
Mitten Cover (make 2):
Using size J hook, attach yarn in rightmost "ridge," or 3rd loop, of R13/14/15 at top of mitten (the side NOT on your palm).
For Child/Adult W only:
R1: 11 sc, ch 9 (keep chs loose), 1 sl st to join (20 including chs)
R2-4/5: Ch 1, turn, 20 hdc, 1 sl st to join (20)
R5/6: Ch 1, turn, 1 hdc2tog, 16 hdc, 1 hdc2tog, 1 sl st to join (18)
R6/7: Ch 1, turn, 18 hdc, 1 sl st to join (18)
R7/8: Ch 1, turn, (1 hdc2tog, 1 hdc)*6, 1 sl st to join (12)
R8/9: Ch 1, turn, 12 hdc, 1 sl st to join (12)
R9/10: Ch 1, turn, (1 hdc2tog, 1 hdc)*4, 1 sl st to join (8)
R10/11: 8 hdc (8)
For Adult M only:
R1: 12 sc, ch 9 (keep chs loose), 1 sl st to join (21 including chs)
R2-6: Ch 1, turn, 21 hdc, 1 sl st to join (21)
R7: Ch 1, turn, (1 hdc2tog, 5 hdc)*3, 1 sl st to join (18)
R8: Ch 1, turn, 18 hdc, 1 sl st to join (18)
R9: Ch 1, turn, (1 hdc2tog, 1 hdc)*6, 1 sl st to join (12)
R10: Ch 1, turn, 12 hdc, 1 sl st to join (12)
R11: Ch 1, turn, (1 hdc2tog, 1 hdc)*4, 1 sl st to join (8)
R12: 8 hdc (8)
Fasten off, weave tail through last 6 sts BLO, and pull tight to close.
Thumb w/ Flap (make 2):
Using size J hook, attach yarn in thumb hole closest to mitten body. Begin crocheting towards the top of the mitten, away from the palm.
R1: 8/9/9 hdc, 1 sl st to join (8/9/9)
R2: Ch 1, turn, 8/9/9 hdc, 1 sl st to join (8/9/9)
R3 (flap): Ch 1, turn, 5 hdc, ch 3/4/4, skip 3/4/4 sts, 1 sl st to join (8/9/9 including chs)
R4: Ch 1, turn, 8/9/9 hdc, 1 sl st to join (8/9/9)
For Child only:
R5: (1 hdc2tog, 2 hdc)*2 (6)
Fasten off, weave tail through last 6 sts BLO, and pull tight to close.
For Adult W/Adult M only:
R5: Ch 1, turn, 9 hdc, 1 sl st to join (9)
R6: (1 hdc2tog, 1 hdc)*3 (6)
Fasten off, weave tail through last 6 sts BLO, and pull tight to close.
Weave in all ends, and you're done!
Button Closure (optional):
Use thread or yarn to sew one button to the center back (not the palm side) of each mitten where the cuff & body connect.
Cut 3 strands of yarn about 12" long. Loosely knot the strands together, then braid them into a tight 3-strand braid. The braid needs to be long enough for the button to pass through. With the knot on the inside of the mitten, pull the braid in-to-out of the last row of the mitten cover, then back out-to-in. Knot the other end of the braid on the inside. Weave in both knotted ends securely, and check to make sure the loop is secure. Do the same for the other mitten.
Did you like this pattern? Let me know if you have any questions or comments down below!





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