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Bending Calculator

Distance between bends
12"12"
Shrink ≈ 1-5/8" (1.61")
The bend pulls your run in by this much. Add 1-5/8" to your overall length — or set your obstacle / center-line mark 1-5/8" further out (your mark + 1-5/8") — so the finished piece still lands on target.
Multiplier
2
field card 2
Conduit offset diagram: two equal 30° bends step the pipe up by the rise; distance between bends = rise × 2; rotate the conduit 180° for the second bend (don't flip the bender); measure rise bottom-to-bottom.
Reference diagram — your measurements are shown above.
The math
  1. Multiplier = csc(30°) = 2 (field card: 2)
  2. Distance between bends = offset depth 6" × 2 = 12"
  3. Shrink = offset depth 6" × (csc−cot)(30°) = 6" × 0.2679 = 1.61"
How to bend it
  1. Mark your two bend points the calculated distance apart.
  2. Line the bender arrow on the first mark and bend to your angle (e.g. 30°).
  3. Flip the conduit in the same plane and bend the second mark to the SAME angle — the two bends must end up parallel.
  4. Remember shrink: the overall end-to-end length shortens by the shrink amount, so push your layout back by that much.

Advisory only — verify every bend against the take-up stamped on your own bender and your AHJ. Answers show the fraction (nearest 1/16) with the decimal beside it. Multipliers use exact trigonometry (multiplier = cosecant; shrink = csc − cot); field-card values are the rounded numbers used by hand.