First measure your hips, or where you want your skirt to sit. I like mine on my hips so that is where I measured. Then take that number and divide it in half and that's how much t shirt to cut. Because the T shirt is double fabric.
So for example my hip measurement was 35 inches, then divided in half is 17.5 So I measured 17.5 inches long and then 11 inches tall. I wanted the finished height of the waist band to be 10 inches (5 folded down) so I cut the fabric at 11 inches to allow 1 inch for seam allowance.
This picture below is the shirt, you will cut through both front and back of shirt. So the 17.5 measurement will go from left to right and the 11 inches is from top to bottom (in the photo below)
Here is the cut waist band, from a tee shirt. The fold is on the left and cut end is on right.
To figure out how long I wanted the skirt, I just measured a skirt that I like the length on.
Here's how it looked after being cut.
Then I sewed a 1/2 inch seam along the top of the fabric (to gather it so it fits the waistband.) It's not sewing anything together, it's just for gathering. I used the longest stitch on my machine.
Then take one of the threads and pull it so it gathers the material, until it reaches your waistband measurement which for me was 35 inches.
I don't have a picture for the next step, but you are going to sew the rectangle fabric together on the short side.
Now your going to slide the waistband around the top of the skirt. How it's shown below. The waist band will slide straight down and around the green part.
All the raw edges will be at the top. (Well in this case since it was from a t- shirt, the bottom hem is still on so that is why there is sewing and serging shown in the picture.)
Make sure the waistband seam and skirt seam match
All the raw edges will be at the top and together.
Here's how it looks with waist band slide over the skirt.
Sew together and serge or zig zag the edge. I used about a 5/8 seam allowance.
Fold up the waist band and then hem the bottom of the skirt and your done.
I cut out some shapes, mostly circles and half circles, from the same t shirt that I made the waist band from and sewed them onto my skirt inkind of flower patterns.
Oh and I was totally going to crop these photos so the swing set was not in them. Oh well.
Now go and make one of your own!