# How do I calculate natural gas pipe size?

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home and garden
indoor environmental quality

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In this regard, what size pipe do I need for natural gas?

One may also ask, what size gas line do I need for a gas stove? For your
How do you measure pipe size?

In this regard, what size pipe do I need for natural gas?

Steel Pipe - Schedule 40

Capacity of Pipe (MBH ≈ CFH) | ||
---|---|---|

Pipe Size (in) | Pipe Length (ft) | |

1/2 | 0.622 | 22 |

3/4 | 0.824 | 50 |

1 | 1.049 | 100 |

**gas**cooktop at 45 CFH, you will**need**just a 1/2-inch supply**line**. This diameter**line**will provide 56 CFH to your cooktop, which is a bit more than needed. If you use a**gas**oven as well, totaling 75 to 80 CFH, this takes a 3/4-inch diameter**line**.Subsequently, one may also ask, how do you find the volume of a natural gas pipeline?

If d=internal diameter, total **pipe volume** is V=x*π*d^2/4, so ideal **gas** law can get the form n=(P*π*d^2 / (4*R*T))*x. This means that **gas** quantity n to fill this **pipe** line is proportional to line length x.

**Measure the Outside Diameter (OD) of your pipe or pipe fitting:**

- Wrap a string around the pipe.
- Mark the point where the string touches together.
- Use a ruler or measuring tape to find the length between the tip of the string and the mark you made (circumference)
- Divide the circumference by 3.14159.