Conduit Kick Calculator

Professional Measurement Tool for Electricians and Pipe Fitters

Distance Between Bends

Shrinkage
1.00″

Multiplier
2.00

Total Conduit Used
9.00″

Formula: Distance = Rise × Multiplier | Shrinkage = Rise × Shrink Factor

What is a Conduit Kick Calculator?

A conduit kick calculator is an essential tool for electricians and commercial pipe fitters designed to determine the precise distance between two bends required to change the elevation of a conduit run. Unlike an offset, which returns the pipe to its original parallel path, a kick changes the direction to meet a specific termination point or clear a single obstruction. Using a conduit kick calculator ensures that your pipe fits perfectly without wasted material or “dog legs” in the run.

Who should use a conduit kick calculator? Professional electricians working with EMT (Electrical Metallic Tubing), IMC, or Rigid conduit benefit most. Common misconceptions include the idea that you can just “eyeball” the bend; however, without a conduit kick calculator, you are likely to experience significant shrinkage that throws off your final measurements at the junction box.

Conduit Kick Calculator Formula and Mathematical Explanation

The math behind a conduit kick calculator relies on trigonometry, specifically the relationship between the hypotenuse and the opposite side of a right triangle. When you create a kick, you are essentially forming a triangle where the “Rise” is the opposite side and the “Distance between bends” is the hypotenuse.

The Core Formulas:

• Distance (Hypotenuse): Rise / sin(Angle) or Rise × Multiplier
• Shrinkage: Rise × [ (1 – cos(Angle)) / sin(Angle) ]
• Multiplier: 1 / sin(Angle)

Variable	Meaning	Unit	Typical Range
Rise	Vertical height of the kick	Inches	1″ – 48″
Angle	Degree of the bend	Degrees	10° – 45°
Multiplier	Factor to determine distance	Ratio	1.15 – 6.0
Shrinkage	Amount pipe shortens per inch of rise	Inches	1/16″ – 3/8″

Practical Examples (Real-World Use Cases)

Example 1: The 4-Inch Kick for a 30° Bend

Imagine you need to kick a conduit up 4 inches to enter a pull box. Using the conduit kick calculator, you select a 30-degree bend.
The multiplier for 30° is 2.0.
Distance = 4″ × 2.0 = 8″.
Shrinkage for 30° is 1/4″ per inch of rise.
Total Shrink = 4 × 0.25 = 1″.
The electrician would mark the first bend, then mark the second bend exactly 8 inches away. When bent, the pipe will be 1 inch shorter than its original straight length.

Example 2: Shallow 10-Inch Kick for a 10° Bend

In a tight ceiling space, you need a 10-inch rise but only have a shallow angle available. Inputting 10 inches and 10 degrees into the conduit kick calculator provides a multiplier of 6.0.
Distance = 10″ × 6.0 = 60″.
Shrinkage is minimal (1/16″ per inch), totaling 0.625″. This setup requires 5 feet of space between bends, highlighting why choosing the right angle in the conduit kick calculator is vital for spatial planning.

How to Use This Conduit Kick Calculator

Follow these steps to get perfect results every time with our conduit kick calculator:

1. Measure the Rise: Determine the exact vertical distance from the current conduit level to the required level.
2. Select Your Angle: Choose an angle based on available space. Steeper angles (45°) use less space but are harder to pull wire through; shallower angles (10°) are easier for wire pulls but require more run distance.
3. Read the Distance: Use the “Distance Between Bends” result from the conduit kick calculator to mark your pipe.
4. Account for Shrinkage: If your conduit must end at a specific point, add the “Shrinkage” value to your overall conduit length before cutting.
5. Execute the Bend: Use your hand bender or mechanical bender to match the degrees selected in the conduit kick calculator.

Key Factors That Affect Conduit Kick Calculator Results

When using a conduit kick calculator, several physical and environmental factors can influence the final outcome:

• Conduit Material: EMT bends differently than Rigid or IMC. While the math in the conduit kick calculator remains the same, the take-up and physical force required vary.
• Bender Hook/Shoe Size: The “take-up” of the bender must be accounted for when marking the first bend, though the conduit kick calculator focuses on the distance between the two marks.
• Springback: Some materials “spring back” after bending. You may need to bend slightly past the angle indicated in the conduit kick calculator.
• Obstruction Geometry: If the obstruction is wide, a simple kick might not suffice, and an offset might be more appropriate.
• Wire Pulling Tension: The conduit kick calculator helps you plan for shallower angles which significantly reduce friction during wire installation.
• Code Requirements: NEC (National Electrical Code) limits the total degrees of bends in a single run (360 degrees). Every kick adds to this total.

Frequently Asked Questions (FAQ)

1. Why does my conduit seem shorter after using the conduit kick calculator?

This is called “shrinkage.” Because the conduit is now traveling at an angle, it consumes more linear material to cover the same horizontal distance. The conduit kick calculator provides the exact amount of shrinkage to add back to your measurements.

2. Can I use a 90-degree angle in the conduit kick calculator?

Technically no. A kick is defined by an angled transition. A 90-degree bend would be a “stub-up,” not a kick. Most conduit kick calculator tools limit angles to 60 degrees or less.

3. What is the most common angle used in a conduit kick calculator?

The 30-degree bend is the most popular because the multiplier is exactly 2.0, making the mental math easy if you don’t have a conduit kick calculator handy.

4. Does pipe diameter change the distance between bends?

No, the center-to-center distance calculated by the conduit kick calculator is independent of the pipe diameter. However, the radius of the bend will change with larger pipes.

5. How do I avoid “dog legs” when using the results?

Ensure that both bends are in the exact same plane. Even if your conduit kick calculator results are perfect, a twist in the pipe between bends will cause a dog leg.

6. Is a kick the same as an offset?

No. An offset uses two bends to move the conduit to a parallel line. A kick uses two bends to change elevation but often terminates at the second bend or continues at a different angle. This conduit kick calculator works for both scenarios.

7. What is the multiplier for a 22.5-degree bend?

The multiplier is 2.6. Our conduit kick calculator uses this precision value to ensure your 22.5° kicks are accurate.

8. How do I measure the “Rise” accurately?

Measure from the surface where the conduit currently rests to the center of the entry point where it needs to end. Enter this into the conduit kick calculator.