Physical Dimensions: Case L. (perpendicular to keyboard): 55.3 cm (21-7/8 in.; W. parallel to keyboard): 115.8 cm (45-5/8 in.);H.: 199.5 cm (78-5/8 in.); 3-octave span: 47.7 cm (18-7/8 in.); Vibrating string L.: longest, ca.; 148.5 (58-1/2 in.); shortest: 4.6 cm (1-7/8 in.); c2: 27 cm (10-5/8 in.)