The conversion of the "Taiyō"-class ships, as the former liners were now known, was fairly austere and they were flush-decked carriers that displaced at standard load and at normal load. The ships had an overall length of , a beam of and a draught of . As carriers they had a speed of . The uptakes for the boilers were trunked together into a downward-curving funnel on the starboard side of the hull amidships. The ships carried of fuel oil that gave them a range of at a speed of . "Taiyō"s crew numbered 747 officers and ratings while her sisters had 850 officers and crewmen.