A stub-up is a 90° bend made near the end of a conduit that brings it from a horizontal run to a vertical stub. The critical measurement is the take-up (or gain) — the distance the bender shoe accounts for in forming the bend radius. Every bender has a listed take-up value for each conduit size: for example, a 1/2" EMT on a standard hand bender has a take-up of approximately 5", while 3/4" EMT has a take-up of 6". To hit a stub height of 12", you would mark the conduit at 12" minus the take-up (e.g., 12" − 5" = 7" from the end), place the arrow on your mark, and bend to 90°. This calculator looks up the take-up for your bender type and conduit size.
1/2" EMT stub-up, target height 12": Standard hand bender take-up = 5". Mark location = 12" − 5" = 7" from conduit end. Place bender arrow on 7" mark and bend to 90°. Resulting stub height = 12".
This is a variant of the full Conduit Bending Calculator — which supports all bend types with live 3D visualization and supports EMT, rigid, and PVC conduit sizes.
Try all options in the full Conduit Bending Calculator →