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Refrigerant Charge Calculator

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Input Parameters

Unit System

Imperial (°F, BTU, ft)SI (°C, kW, m)

Pipe Length (ft)

Pipe Diameter (in)

Refrigerant Type

Results

Refrigerant Charge

0

Charge lbs

0

Charge (kg) kg

Charge Breakdown

Charge (lbs)0.286 lbs(100%)

Charge (kg)0.13 kg(45%)

Charge Analysis

Calculation Steps

1

Calculate Pipe Radius

Formula:

r_{ft} = \frac{D_{in} / 2}{12}

Calculation:

r_{ft} = \frac{0.500 / 2}{12} = 0.0208 ft

Result:

0.0208 \text{ ft}

2

Calculate Pipe Volume

Formula:

V = \pi \times r^2 \times L

Calculation:

V = \pi \times 0.0208^2 \times 50.00

Result:

0.0682 \text{ cu ft}

3

Calculate Refrigerant Charge

Formula:

Charge = V \times \rho

Calculation:

Charge = 0.0682 \times 4.2

Result:

0.29 \text{ lbs}