Spike's Calculators

# Pipe Size Calculator - Advanced

The Advanced Pipe Size Calculator helps determine the optimal pipe size for various projects. Input the flow rate, maximum allowable velocity, pipe length, and pipe roughness to get the minimum required pipe diameter and an optimal pipe size suggestion. The calculator also estimates the pressure drop to ensure efficient fluid transport.

### Features:

• Flow Rate Input: Enter flow rate in gallons per minute (GPM).
• Maximum Allowable Velocity: Input velocity in feet per second (ft/s).
• Pipe Length: Specify pipe length in feet.
• Pipe Roughness: Choose from common materials with pre-defined roughness values.
• Results: Get minimum and optimal pipe diameters and pressure drop in psi.

Flow Rate (e.g., 10 GPM):
Maximum Allowable Velocity (e.g., 5 ft/s):
Pipe Length (feet):
Pipe Roughness:

#### Results:

 Minimum Required Pipe Diameter: Optimal Pipe Diameter (Standard Size): Minimum Pipe Diameter (Fractional): Estimated Pressure Drop:

#### Calculator

1. enter the flow rate in GPM (e.g., 10 1/2)
2. specify the maximum allowable velocity in ft/s (e.g., 5 3/4)
3. provide the length of the pipe in feet (e.g., 100)
4. select the pipe material from the dropdown menu

#### Results

1. the minimum required pipe diameter
2. the recommended pipe diameter (next standard size)
3. the minimum pipe diameter needed in fractional format
4. the estimated drop in pressure

### Example Input:

• Flow Rate: 10 1/2 GPM
• Maximum Allowable Velocity: 5 3/4 ft/s
• Pipe Length: 100 feet
• Pipe Roughness: Commercial Steel (0.00015 ft)

### Example Output:

• Minimum Pipe Diameter: 1.24 inches
• Optimal Pipe Diameter: 1.25 inches (next standard size)
• Pipe Diameter (Fractional): 1 1/4
• Estimated Pressure Drop: 0.74 psi
This straightforward tool simplifies the process of calculating pipe sizes, ensuring accuracy and efficiency for plumbing, HVAC, and industrial projects.