What is the OD of 1/4 copper tubing
Daniel Rodriguez
Published Apr 03, 2026
Nominal Pipe Size inchesO.D.I.D.Type1/40.3750.3153/80.5000.4301/20.6250.545
What is the OD of 1/4 copper pipe?
Dimensions and Physical Characteristics of Copper Tube TYPE KNominal or standard size (inches)Nominal dimensions (inches)1/40.3750.0353/80.5000.0491/20.6250.049
What is OD in copper tubing?
Copper Pipe Sizing The actual outside diameter (OD) of rigid copper type is always 1/8 inch larger than the nominal size, or what the pipe is called. For example, a 1/2-inch copper pipe has an outside diameter of 5/8 inch. It is true with all three common types of new pipe, K, L, and M.
Is copper tubing sized by ID or OD?
In the North American plumbing industry, the size of copper tubing is designated by its nominal diameter, which is 1⁄8th inch less than the outside diameter.What is the outside diameter of 1/4 inch ACR tubing?
ApplicationAir Conditioning, Refrigeration, Natural Gas, LP Gas, Compressed AirInner Tube Diameter1/4″Length20 ftMaterialCopperOuter Tube Diameter3/8″
How do you measure the diameter of a pipe?
To find it, measure around the circumference of the pipe with flexible measuring tape. Divide the circumference by pi, or about 3.14159. For example, if the circumference is 12.57 inches (319 mm), you would divide by pi, and get an outside diameter of about 4 inches (100 mm).
What is the outside diameter of a 1 inch copper pipe?
CTS – Copper Tubing Sizes used in PlumbingNominal sizeOutside diameter ODInside diameter ID3⁄47⁄80.78511 1⁄81.02511⁄41 3⁄81.265
What is the OD of inch and a half copper?
1/2-inch pipe is the measurement of copper pipe that is 5/8 inch OD.How do I know what size copper pipe I have?
The nominal size of copper pipe, whether supply lines or DWV, is always 1/8 inch less than the OD measurement. For example, copper pipe that measures 5/8 inch OD, is called 1/2- inch pipe. The ID varies because wall thickness varies. Type K has the thickest wall, followed by Type L, Type M and DWV.
What size is normal copper water pipe?Standard Sink Supply Line Size The copper, galvanized steel or PEX pipes that constitute a residential water supply system are of two main diameters. The main pipes, which are the ones that come off the main water supply and the water heater, are 3/4 inches in diameter.
Article first time published onWhat is the thickness of copper pipe?
The most common copper pipe sizes are ½ and ¾ inches. Type M ½ inch measures 0.028” in wall thickness whereas type L ½ inch measures 0.04” in wall thickness. Type M ¾ inch measures 0.032” in wall thickness while type L ¾ measures 0.045”.
What is the inside diameter of 3/4 copper pipe?
Copper 3/4-inch pipe, for instance, doesn’t measure 3/4-inch. Its outside diameter (OD) is 0.875 inch and inner diameter (ID) is 0.811 inches for Type M pipe (a designation that relates to wall thickness).
Is refrigerant pipe ID or OD?
Refrigeration tubing is measured by it’s outside diameter or O.D.: ¼, ½, 5/8, ¾, 7/8, 1-1/8, 1-3/8, 1-5/8, etc.
What size copper tubing is used for HVAC?
Copper tubing used in air conditioning systems ranges from 1/8-inch to 1-3/8 inches in nominal size. The nominal size is the outside diameter of the pipe.
What is ODF pipe size?
ODF means Outside Diameter Female or it refers to as Solder or Sweat connection.
What is the OD of 1/2 PEX pipe?
PEX Tubing size (CTS/Nominal)Outside Diameter (OD)Weight lbs/100ft1/2″0.625″5.805/8″0.750″8.383/4″0.875″11.001″1.125″17.06
How do you find the diameter of a pipe from the circumference?
Measure circumference using a flexible tape and divide the outside circumference by 3.1415. Here the circumference is about 1/32″ (0.03″) less than 6″ = 5.97″. So 5.97 ÷ 3.1415 = 1.900″ diameter – 1 1/2″ nominal pipe.
What is pipe diameter?
When it comes to measurement of pipe, it is measure by the inside diameter, often called the nominal diameter. Nominal Pipe Size (NPS) is a North American set of standard sizes for pipe. The term nominal refers to pipe in non-specific terms and identifies the inside diameter with a non-dimensional number.
What size copper pipe is used for shower?
Nearly all tub and shower faucets require a one-half inch diameter water supply pipe on both the hot and cold supplies.
What is the difference between type ML and K copper tubing?
Type K is the heaviest. Type L is medium weight and used most often for water lines in homes. Type M is thinner and is used underground or for light domestic water lines if local codes allow.
What is the difference between copper pipe and copper tubing?
Tubing is usually more expensive than pipe due to tighter manufacturing tolerances. Interestingly, while the stated and measured OD’s of tubing are almost exact in most cases, copper tubing generally has a measured OD that is 1/8” larger than stated OD. As such, maybe it should be called copper pipe.
What is the thinnest copper pipe?
Type M Copper Pipe 032 inches for a ¾-inch diameter pipe, making it a thinner wall than both Type K and Type L copper. While this might seem like a point for the “cons” list, it really isn’t: There is less copper in Type M copper pipe, making it lighter, less rigid, and easier to work with.
What is the OD of 7/8 copper tubing?
Sub Brand:CerroPure®Nominal Size:7/8 INOutside Diameter:7/8 INInside Diameter:0.785 INLength:20 FT
What does OD mean in plumbing?
OD and Nominal Pipe Size Tubing is measured by the OUTSIDE DIAMETER (O.D.), specified in inches (e.g., 1.250) or fraction of an inch (eg. 1-1/4″). Pipe is usually measured by NOMINAL PIPE SIZE (NPS). Although it is related to the outside diameter, it is significantly different.
What type of copper tubing is used for refrigeration?
Hardened copper tubing is used for water lines, commercial refrigeration and HVAC. This type of tubing is joined using grooved, compression, crimped, or sweat connections. The runs are mostly straight except where it must be bent to go around construction.
What type of tubing Cannot be used in air conditioning systems?
You must check to make sure that the refrigerant that is going to be used does not react with the copper. Ammonia refrigerant will react with copper hence it should not be used. Instead, the stainless steel tubing type will have to be used.
What is the maximum length of refrigerant piping?
Length is general guide. Lengths may be more or less, depending on remaining system design factors. Maximum linear (actual) length = 200 feet. Maximum linear liquid lift = 60 feet.