Origin Flame | Pipe Bending Calculator

Fast EMT/Conduit Bending Math

This page gives quick marks and math for common field bends. Results depend on your bender + technique — always do a quick test bend if you’re using a new bender/shoe.

Units are inches by default. You can still type decimals.

90° Stub-Up

Stub-Up Mark

Desired Stub Height (in)

Bender Size

Take-Up (Deduct) (in)

Measured from End to Mark?

Mark Location

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Formula: Mark = Stub Height − Take-Up (typical hand bender method)

2-Bend Offset

Offset Marks + Shrink

Offset Height (in)

Angle

Distance to Obstruction / Start Point (in)

Output Mode

Results

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Uses multiplier table (approx): 10°=6.0, 22.5°=2.6, 30°=2.0, 45°=1.4, 60°=1.2. Shrink uses standard approximate shrink factors.

3-Point Saddle

3-Point Saddle Helper

Saddle Height (in)

Center Bend Angle

Centerline Location (in) (where obstacle is)

Side Bend Angle

Marks

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This is a practical approximation for quick saddles. Always verify on scrap if it’s critical.

Segment Bend

Rolling Offset (Simple)

Rise (in)

Run (in)

Chosen Offset Angle

Distance to Start Point (in)

Results

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Calculates true offset = √(rise² + run²), then uses offset multiplier to get spacing.