This knitting calculator is a super smart tool to calculate how many stitches and rows you need to use on your knitting project. You just need a knitting sample, where you place the knitting calculator’s square window (5 x 5 cm) on top to calculate the number of stitches and rows you need for 5 x 5 cm. After this, you adjust the calculator’s dials with the arrows to the number of stitches and rows you have counted on the sample yourself – and voila, you have calculated the number of stitches and rows you need to obtain a certain length and width in your project. The knitting calculator consists of a dial for centimeters, a dial for stitches and a dial for rows. Furthermore, a 5 x 5 cm window to measure your knitting sample.