Conduit installation
Conduit Offset Calculator
Calculate two-bend conduit offset marks, spacing, and shrink using obstacle distance, offset height, and bender-specific factors.
Conduit geometry
Bend details
in
in
×
The selected angle fills a common hand-bender reference. Change it to match your bender manual.
in/in
Change this reference value to match your bender manual.
Mark locations
First offset mark from conduit end
21 1/2 in
Mark 233 1/2 in
Distance between marks12 in
Calculated shrink1 1/2 in
Bend angle30°
Apply both bends in opposite directions. Keep the conduit and bender aligned while marking and bending.
Geometry aid onlyDisplayed marks are rounded to the nearest 1/16 in. Confirm take-up, multipliers, bend radius, and mark-pointer alignment for your conduit and bender. Make a test bend and verify the finished dimensions.
Method and field check
Mark spacing is the offset height multiplied by the selected bender multiplier. The first mark includes the entered shrink allowance. Use factors for the exact bender and bend angle, then verify alignment and clearance with a test bend.