The answer may shock you. More often than not, sizes differ greatly between brands, whether it be jeans, shirts, or shoes. A new website is gearing up to be the only tool you’ll ever need to determine your true size on a brand-by-brand basis. The brainchild of 22 year-old college student and entrepreneur Melissa Adelman, Size Me Up will offer an application designed to give you a quick and easy way to translate your size from one brand to another.

This overwhelming lack of consistency is mostly a product of a sneaky little industry practice being called “vanity sizing”. Basically, it is just a poorly concealed attempt by labels to help weight-conscious customers feel less of a pinch, so to speak. By simply reducing the size while maintaining the original fit, customers are led to believe that they are wearing much smaller fits than those they may wear by a different manufacturer, thus ensuing a great deal of brand loyalty.

So head on over to Size Me Up and discover your true size. You may feel better, you may feel worse. But at least you’ll know the truth, and with a little research, you’ll never again have to use the pliers to put on that favorite pair of jeans.