Ring Sizing
First, select a ring that fits for the finger. Measure the diameter opening of that ring using string and measure against a ruler. Use the chart below to determine your ring size.
Tip: If you think you are in between sizes, always opt for the next size up.
Average size guide: Ladies around size 8 to 10 usually measure size K or L. Ladies around size 12-14 measure around M,N or O and ladies sizes around size 16-18 are usually anywhere from a size P to R 1/2.
INTERNAL DIAMETER (MM)
15.04 | UK | I
15.4 | UK | J
15.8 | UK | K
16.1 | UK | L
16.5 | UK | M
16.92 | UK | N
17.35 | UK | O
17.75 | UK | P
18.19 | UK | Q
18.61 | UK | R
19.1 | UK | S
Fira Ring