An adjustable wheelchair to facilitate width adjustment to accommodate varying wheelchair size needs where the wheelchair includes a pair of spaced side assemblies that support a pair of wheels, a seat and a backrest at least a pair of T-members that are rotatably connected to the side assemblies at least a pair of legs that are securely fastened to the side assemblies an X-member formed by at least two hollow tubes that are pivotally connected where the X-member is placed between the side assemblies and where the T-members and the legs are adjustably lockable to the X-member in order to easily size the wheelchair.