Take your best guess.
Ring size 325.
Click here to download our practical ring size guide.
Use our free ring size converter to determine your ring size by circumference or diameter.
You will need to print it out and place it on a flat surface.
Women s rings are commonly between sizes 3 and 9 while men s rings are usually sized between 8 and 14.
Select i don t know.
Print the ring sizer making sure that it is printed to actual size.
Download our ring size pdf.
When printing make sure that you do not resize the page at all.
Selecting the i don t know option will allow you to select a ring size later.
This ring size method uses a tape measure approach with specific ring metrics.
Choose your preferred sizing method.
We have several ways to help you determine the size of the ring you want.
The standard sizes used by o ring manufacturers in the united states are defined by aerospace standard as568b aerospace size standard for o rings.
We need to know the size of the ring early in the design process.
If you have a ring that fits you can use this chart.
Move the slider until the selected object fits between the boxes to help with proportions.
Ring sizes follow a scale of numbers and half numbers typically from ring size 3 to 13 5 for adults.
If the size is wrong simply send in your ring within 90 days of your purchase and we will resize.
With the numbers facing out slip the tip of the ring sizer through the slot.
Take your best guess and don t sweat it.
Please follow the simple steps below to determine your ring size.
O ring size chart as568 standard o ring sizes find as568 o ring standard sizes by cross section inside diameter and outside diameter in our o ring size chart and separate o ring tolerance chart.