Graphene is a 2D material with spectacular properties. Its elasticity and biocompatibility make it appropriate for stretchable electronics and bioelectronics applications respectfully. In this work, we present the design of a Graphene Nanoribbon (GNR) based XOR gate and a 3-input XOR gate, extending the universal set of AND, NOT, OR gates already presented in literature, and verifying their operation by computing its conductance. Our proposed topology allows XOR gate scaling from 2-inputs to 3-inputs with zero increase in active area. Moreover, it operates when deposited on a wide range of substrates, due to the lack of back gate bias, enabling its possible use in stretchable and biocompatible electronics applications. © 2022 IEEE.