The motif is 48 stitches X 48 rows.
Check the size of this motif with different yarn tension. Choose a tension or write in yours and let the size be calculated.
The base image for this graphics is from this blogg http://annatianfeedas.blogspot.ro/2010/10/pixel-art.html
I wanted to try a knitting motif with a face on and found these images interesting to use.