What is the OD of 1/4 inch tubing?

O.D. x 0.170 in.

Is vinyl tubing measured by ID or OD?

Tubing is generally measured by the OD Outside Diameter because it is used with push-to-connect fittings.

Is 1 4 tubing ID or OD?

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″).

What is the OD of 1/4 copper tubing?


Nominal Pipe Size inches O.D. I.D.
1/4 0.375 0.315
3/8 0.500 0.430
1/2 0.625 0.545

How are hose diameters measured?

Measure the distance across the opening in the paper tube with a ruler. This measurement equals the diameter of the inside of your garden hose. According to Gardener to Farmer, standard sizes include one-half inch, five-eighths inch, three-quarter inch and 1 inch.

What is the ID of a garden hose?

Garden hoses have inside diameters of 1/2 inch, 5/8 inch or 3/4 inch. The male and female ends of the hose are often slightly larger than its inside diameter, so measuring isn’t as simple as holding up a ruler at one end of the hose.

What is OD and ID tubing?

Tubing is measured using the size of the inside diameter (I.D.) and outside diameter (O.D.). The measurement between the inside and outside diameter of a plastic tube is referred to as “the wall” and is used to measure tube strength: the thicker the wall, the stronger the tube.

How do you find the diameter of tubing?

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).