Conduit Bend Calculator

This works out where to mark conduit for the three bends that come up most: an offset, a three point saddle and a stub up. Give the depth of the offset or the height of the obstruction and the angle you are bending to, and it returns the distance between the bends, the shrink and the mark positions measured from the end of the conduit. The multipliers stamped on a bender are rounded, so the exact figure from the trigonometry is printed beside the published one. Take up for a stub is a property of the bender rather than the conduit, so it is an input with the common values listed.

Calculator Type

Two matched bends that step the conduit sideways. Give the depth of the step and the angle you are bending to.

How far sideways the conduit has to move, centre to centre.
From the end of the conduit to where the offset has to start. Fill it in and the two marks come back measured from that end.
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A saddle over a pipe or another conduit in the way. Give the height of the obstruction and the centre bend you want.

Outside diameter of what you are crossing, plus any clearance you want above it.
From the end of the conduit. Fill it in and all three marks come back measured from that end.
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A single 90 with the stub finishing at a given height. The mark is the height less the take up of the bender you are using.

From the back of the bend to the end of the conduit, which is how a stub is measured.
How long the flat leg has to be from the back of the bend. Fill it in for the length of conduit to cut.
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