Trumpet music is written a major second above the sound it makes. On a B♭ trumpet, written C4 sounds concert B♭3. The fingering chart stays in the written pitch a trumpet player reads; the calculator below converts either direction.
01 Finger the written note
Tool 01
Interactive fingering chart
Look up all 31 written notes from F♯3 to C6, including primary valves, partials, alternates, and common intonation tendencies.
Valve 1 is nearest the mouthpiece; valve 3 is nearest the bell.
02 Use the transposition rule without the calculator
From written trumpet pitch to concert pitch, move down a major second: written D becomes concert C, written A becomes concert G, and written C becomes concert B♭. From concert pitch to a B♭ trumpet part, move up a major second.
Octaves can cross during the move. Written C4 is concert B♭3; concert B♭4 must be written C5. The number belongs to the resulting pitch, not the direction of travel.
Related reading
Questions
Why does written C sound B-flat on trumpet?
A B-flat trumpet sounds a major second lower than written. Written C4 therefore sounds concert B-flat3.
Do the trumpet tools upload anything?
No. The calculator runs entirely in this page, and the fingering chart is a static reference with no account or upload.