The Original Gender Abacus was developed as a tool to help individuals define their gender experience in a more complete manner than within the existing limited binary of “female” or “male.” The many aspects of our core selves related to gender and sexuality are complex, and certainly encompass more than is represented on these four domains. It is our hope that this simple tool will allow individuals of all gender experience to demonstrate that there are infinite and rich combinations of psychosexual characteristics that work in combination to make each of us unique.