Spike's Calculators

Get Measurements from the US Ring Size

Enter a US ring size and get the inside circumference and diameter in inches and millimetres.

If you want to purchase a ring, usually, you would measure the size of your ring finger and find the corresponding US ring size. This calculator works reversely and lets you enter a US ring size, and then provides you with the inside measurements.

US Ring Size

Ring Size Fraction


Inside diameter in inches dec.in in
Inside circumference in inches dec.in in
Inside diameter in millimetres mm
Inside circumference in millimetres mm


  1. enter a US ring Size


  1. inside diameter in decimal inch and inch plus a fraction
  2. inside ring circumference in decimal inch and inch plus a fraction
  3. inside diameter in millimetres
  4. inside circumference in millimetres
If you have any questions or comments please Contact Us
Privacy Policy
© 1998, VmNet.