The Five Main Sizes of Ukuleles To complicate things even further, the sizes aren’t set in stone when it comes to buying ukuleles. Instrument manufacturers have some leeway when designing their ukulele, so ukuleles by different brands can vary by a couple of inches. However, there are some standard sizes the music industry has come to expect: Soprano Ukulele: Usually 21 inches (53 cm) Concert Ukulele: Around 23 inches (58 cm) Tenor Ukulele: Approximately 26 inches (66 cm) Baritone Ukulele: About 29 inches (74 cm) Bass Ukulele: Around 30 inches (76 cm)
