Yes, you can hem sweatpants. Making minor alterations on your clothes is a common practice. You may opt to have a professional tailor or seamstress to alter your sweatpants, but a simple hem is easy. Most of the time, sweat pants are fitting to your waists. But oftentimes the length is longer than your desired height. You can fix this problem either by manual sewing or through a sewing machine. Regardless of which you prefer, you will follow the same procedure. Read on the succeeding steps to guide you. First, determine your desired length using a tape measure. Ask a friend to help you get the measurement. Wear your sweatpants and let your friend mark your desired length. Write it down on paper. Next, put your sweatpants flat on a table. Using the tape measure, mark your desired length on your sweatpants. Make an allowance of 1½ inches (3.81cm.) down from your desired length. This will be your hem allowance. Get a pair of scissors and cut your sweatpants on the hem allowance you make. Put your sweatpants inside out and fold the bottom edge of the first leg at ½ inch (1.27 cm.). Make sure you don’t go beyond that. Then, fold it again at about 1 inch (2.54 cm.). Note that you have used your hem allowance. Secure the fold with pins. Do the same fold on the other leg of your pants. Get an iron, turn it on, and press the edges of the folds. This is to make a distinct mark on the folds. Once done, sew the edge of the fold. Then, use a backstitch to finish the hem. Turn your sweatpants on its right side, then press the hems. Wear your sweatpants, and check in front of the mirror. If you’re happy with the hems, then you’re finished!