To check the accuracy of your scale, you can use a method called “reweight”. To use this simple method, you should find an item that has a consistent weight, like a five-pound dumbbell. When you weigh it again and again, the weight should be the same each and every time. If so, then you should be able to depend on the accuracy of the scale you chose. If not, then you know that it’s either time to purchase a new one or your scale might need to recalibrate.