Convert ID to OD Hoop Size

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Posted below is the closest hoop size listed as OD that has the same ID as the size you’re looking for, for both 5/8 and 3/4 tubing. Half and quarter sizes are not available.

Convert ID to the closest measurement in OD, depending on tubing size

Hoop ID
Inner
Diameter
Hoop OD
Outer
Diameter
in 3/4 tubing
Hoop OD
Outer
Diameter
in 5/8 tubing
24 in. ID
25.5” OD
in 3/4 tubing
closest size:
25” OD or 26” OD
25.25” OD
in 5/8 tubing
closest size:
25″ OD
25 in. ID
26.5” OD
in 3/4 tubing
closest size:
26” OD or 27” OD
26.25” OD
in 5/8 tubing
closest size:
26″ OD
26 in. ID
27.5” OD
in 3/4 tubing
closest size:
27” OD or 28” OD
27.25” OD
in 5/8 tubing
closest size:
27″ OD
27 in. ID
28.5” OD
in 3/4 tubing
closest size:
28” OD or 29” OD
28.25” OD
in 5/8 tubing
closest size:
28″ OD
28 in. ID
29.5” OD
in 3/4 tubing
closest size:
29” OD or 30” OD
29.25” OD
in 5/8 tubing
closest size:
29″ OD
29 in. ID
30.5” OD
in 3/4 tubing
closest size:
30” OD or 31” OD
30.25” OD
in 5/8 tubing
closest size:
30″ OD
30 in. ID
31.5” OD
in 3/4 tubing
closest size:
31” OD or 32” OD
31.25” OD
in 5/8 tubing
closest size:
31″ OD
31 in. ID
32.5” OD
in 3/4 tubing
closest size:
32” OD or 33” OD
32.25” OD
in 5/8 tubing
closest size:
32″ OD
32 in. ID
33.5” OD
in 3/4 tubing
closest size:
33” OD or 34” OD
33.25” OD
in 5/8 tubing
closest size:
33″ OD
33 in. ID
34.5” OD
in 3/4 tubing
closest size:
34” OD or 35” OD
34.25” OD
in 5/8 tubing
closest size:
34″ OD
not recommended
in 5/8 tubing
34 in. ID
35.5” OD
in 3/4 tubing
closest size:
35” OD or 36” OD
35.25” OD
in 5/8 tubing
closest size:
35″ OD
not recommended
in 5/8 tubing
35 in. ID
36.5” OD
in 3/4 tubing
closest size:
25” OD or 26” OD
36.25” OD
not available
in 5/8 tubing
36 in. ID
37.5” OD
in 3/4 tubing
closest size:
25” OD or 26” OD
37.25” OD
not available
in 5/8 tubing
38 in. ID
39.5” OD
in 3/4 tubing
closest size:
25” OD or 26” OD
39.25” OD
not available
in 5/8 tubing

Tubing Size Conversion Calculation

Want to know how the measurements all break down? The outer diameter, or OD, is the measurement across the widest part of the hoop, including the width of the tubing. We list our hoops as outer diameter only, but you can calculate the inner diameter as well.

5/8″ and 3/4″ is the measurement for the outer diameter of the tubing (tubing thickness). 5/8″ is the smaller/thinner tubing (featherweight hoop) while the 3/4″ tubing is the standard size we offer for our hoops.

3/4″ = 0.75 inches per each side of the hoop.
0.75″ + 0.75″ = 1.5 inches difference between ID and OD.

5/8″ = 0.625 inches per each side of the hoop.
0.625″ + 0.625″ = 1.25 inches difference between ID and OD.

To get the inner diameter of a hoop you would add together both sides of the width of the tubing (either 5/8″ or 3/4″), then subtract that amount from the outer diameter to get the measurement of the inner diameter.

Examples:

If you have a 27″ ID hoop with 5/8″ tubing, the closest outer diameter size would be 28″ OD. 27″ ID + 0.625″ + 0.625″ = 28.25″ OD

If you have a 27″ ID hoop with 3/4″ tubing, the closest outer diameter size would be 29″ OD, but you can also round down to 28″ if you’d like to work towards a smaller size: 27″ ID + 0.75″ + 0.75″ = 28.5″ OD

Tubing Size: Inches to Centimeters

3/4″ = 0.75 inches = 1.9cm
5/8″ = 0.625 inches = 1.58cm

Moodhoops-Tubing-Sizing-Guide