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Pipe Sizing Calculator

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Input Parameters

Unit System

Imperial (°F, BTU, ft)SI (°C, kW, m)

Flow Rate (GPM)

Velocity (FPM)

Fluid Type

Results

Pipe Sizing

2

Pipe Diameter in

0

Pipe Area sq ft

92,251

Reynolds Number

Design Parameters

Flow Rate50 GPM

Velocity6 FPM

Fluid TypeWater

Pipe Sizing Analysis

Calculation Steps

1

Convert Flow Rate to ft³/s

Formula:

Q_{ft³/s} = Q_{GPM} \times 0.002228

Calculation:

Q_{ft³/s} = 50 \times 0.002228

Result:

0.111400 \text{ ft³/s}

2

Calculate Required Pipe Area

Formula:

A = \frac{Q}{V}

Calculation:

A = \frac{0.111400}{6.00}

Result:

0.018567 \text{ ft²}

3

Calculate Pipe Diameter

Formula:

D = 2\sqrt{\frac{A}{\pi}}

Calculation:

D = 2\sqrt{\frac{0.018567}{\pi}}

Result:

0.1538 \text{ ft}

4

Convert Diameter to Display Units

Formula:

D_{in} = D_{ft} \times 12

Calculation:

D_{in} = 0.1538 \times 12

Result:

1.85 \text{ in}

5

Calculate Reynolds Number

Formula:

Re = \frac{V \times D}{\nu}

Calculation:

Re = \frac{6.00 \times 0.1538}{1.0 \times 10^{-5}}

Result:

92251 \text{ }