Conduit bending charts
The numbers you look up most, worked out from the same math and data BendMate uses.
- Conduit offset multiplier and shrink chartConduit offset multipliers and shrink per inch for 10°, 22.5°, 30°, 45° and 60° bends, with distances between bends for common offset heights.
- Conduit bender deduct chartThe 90° deduct, or take-up, for Greenlee, Klein, IDEAL, Milwaukee, Southwire and Gardner Bender hand benders, for 1/2" to 1-1/4" EMT, rigid and IMC.
- Conduit outside diameter chartOutside diameters of EMT, rigid (RMC) and IMC conduit from 1/2" to 4" trade size, from the ANSI C80 standards, in inches.
More charts and lookups
- 10 degree conduit offset: multiplier and shrinkThe 10 degree offset multiplier is 5.759, so a 1" offset needs 5 3/4" between bends. Distances and shrink for 1" to 12" offsets.
- 15 degree conduit offset: multiplier and shrinkThe 15 degree offset multiplier is 3.864: a 3" offset takes 11 9/16" between bends. See distances and shrink for 1" to 12" offsets.
- 22.5 degree conduit offset: multiplier and shrinkThe 22.5 degree offset multiplier is 2.613. A 4" offset takes 10 7/16" between bends. Distances and shrink for 1" to 12" offsets.
- 30 degree conduit offset: multiplier and shrinkThe 30 degree offset multiplier is 2.000: marks go twice the offset height apart. Distances and shrink for 1" to 12" offsets.
- 45 degree conduit offset: multiplier and shrinkThe 45 degree offset multiplier is 1.414. A 10" offset takes 14 1/8" between bends. Distances and shrink for 1" to 12" offsets.
- 60 degree conduit offset: multiplier and shrinkThe 60 degree offset multiplier is 1.155, with 0.577" shrink per inch. Distances and shrink for 1" to 12" offsets, steepest angle.
- 1/2" EMT bender deduct (take-up)Most hand benders take 5" off a 90 in 1/2" EMT. See the mark for common stub lengths and how to confirm the deduct on your own bender.
- 3/4" EMT bender take-up3/4 EMT bender take-up: most hand benders take up 6" on a 90, 1" more than 1/2". Marks for common stubs and how to check your own.
- 1" EMT bender deduct and take-upMost hand benders deduct 8" for 1" EMT, 2" more than 3/4". Marks for common stubs, plus how to confirm the deduct on your own bender.
- 1-1/4" EMT bender deduct and take-upMost hand benders deduct 11" for 1-1/4" EMT, 3" more than 1". Marks for common stubs, and how to check the deduct on your bender.
- 1-1/2" EMT bender deduct by bender14 bender shoes for 1-1/2" EMT deduct 12 15/16" to 15 3/4"; 14 7/8" is the most common. Stub marks, and why each machine’s number differs.
- 2" EMT bender deduct by bender14 bender shoes for 2" EMT deduct 12 3/4" to 16 7/8"; 15 3/8" is the most common. Stub marks, and why each machine’s number differs.
- 1/2" rigid (RMC) bender deduct and take-up1/2" rigid (RMC) deduct for 27 bender shoes: 6" on a hand bender, 7 1/2" on a Greenlee 555, 1 5/16" on a push-type hydraulic. Stub marks and why.
- 3/4" rigid (RMC) bender deduct and take-up3/4" rigid (RMC) deduct for 25 bender shoes: 8" on a hand bender, 9" on a Greenlee 555, 1 1/2" on a push-type hydraulic. Stub marks and why.
- 1" rigid (RMC) bender deduct and take-up1" rigid (RMC) deduct for 23 bender shoes: 11" on a hand bender and on a Greenlee 555, 1 7/8" on a push-type hydraulic. Stub marks and why.
- 2" conduit offset: marks and shrink at every angleA 2" offset at 30° needs 4" between bends and shrinks 9/16"; at 45°, 2 13/16" and 13/16". Every angle, and which fit a hand bender.
- 3" conduit offset: marks and shrink at every angleA 3" offset at 30° needs 6" between bends and shrinks 13/16"; at 45°, 4 1/4" and 1 1/4". Every angle, and which fit a hand bender.
- 4" conduit offset: marks and shrink at every angleA 4" offset at 30° needs 8" between bends and shrinks 1 1/16"; at 45°, 5 11/16" and 1 11/16". Every angle, and which fit a hand bender.
- 6" conduit offset: marks and shrink at every angleA 6" offset at 30° needs 12" between bends and shrinks 1 5/8"; at 45°, 8 1/2" and 2 1/2". Every angle, and which fit a hand bender.
- 8" conduit offset: marks and shrink at every angleAn 8" offset at 30° needs 16" between bends and shrinks 2 1/8"; at 45°, 11 5/16" and 3 5/16". Every angle, and which fit a hand bender.
- 10" conduit offset: marks and shrink at every angleA 10" offset at 30° needs 20" between bends and shrinks 2 11/16"; at 45°, 14 1/8" and 4 1/8". Every angle, and which fit a hand bender.
- 12" conduit offset: marks and shrink at every angleA 12" offset at 30° needs 24" between bends and shrinks 3 3/16"; at 45°, 17" and 5". Every angle, and which fit a hand bender.
- 2" saddle bend: 3-point and 4-point marks and shrinkOver a 2" obstruction, a 45° saddle puts the outer marks 5 1/4" from center and shrinks 13/16"; at 60°, 4" and 1 1/16". Plus 4-point marks.
- 3" saddle bend: 3-point and 4-point marks and shrinkOver a 3" obstruction, a 45° saddle puts the outer marks 7 13/16" from center and shrinks 1 3/16"; at 60°, 6" and 1 5/8". Plus 4-point marks.
- 4" saddle bend: 3-point and 4-point marks and shrinkOver a 4" obstruction, a 45° saddle puts the outer marks 10 7/16" from center and shrinks 1 9/16"; at 60°, 8" and 2 1/8". Plus 4-point marks.
- 6" saddle bend: 3-point and 4-point marks and shrinkOver a 6" obstruction, a 45° saddle puts the outer marks 15 11/16" from center and shrinks 2 3/8"; at 60°, 12" and 3 3/16". Plus 4-point marks.
- Printable conduit bending chartA one-page conduit bending chart to print: offset multipliers, shrink, and typical hand-bender deducts for 1/2" to 1-1/4" EMT, in one place.
- Conduit bending formulasThe conduit bending formulas: offset spacing, shrink, 90 stub-up marks, saddles, rolling offsets and parallel offsets, each with a worked example.
- 3-point saddle bend chartMarks for a 3-point saddle by obstruction height: a 3" saddle puts the outer marks 7 13/16" either side of the center. Chart for 45° and 22.5°.