Finding the perfect ring size is essential, whether it's for yourself or your partner. If you're unsure of the size, there are simple and discreet ways to measure it without professional tools.

Secretly Checking a Partner’s Ring Size

To secretly find your partner’s ring size, borrow a ring they wear on the intended finger. Use a piece of string or a flexible tape measure to measure the inner circumference of the ring. Alternatively, you can trace the inner circumference on paper. Measure the length with a ruler and use an online chart to convert this measurement to the corresponding ring size.

Checking Your Own Ring Size Without a Ring Sizer

For your own ring size, wrap a piece of string or paper around your finger. Mark where the ends meet and measure the length with a ruler. Use an online chart to convert this measurement to your ring size.

Ring Size Conversion Chart

US Size 5

UK Size: J

Circumference: 49.3 mm (4.93 cm)

US Size 6

UK Size: L

Circumference: 51.9 mm (5.19 cm)

US Size 7

UK Size: N

Circumference: 54.4 mm (5.44 cm)

US Size 8

UK Size: P

Circumference: 57.0 mm (5.70 cm)

US Size 9

UK Size: R

Circumference: 59.5 mm (5.95 cm)

US Size 10

UK Size: T

Circumference: 62.1 mm (6.21 cm)

US Size 11

UK Size: V

Circumference: 64.6 mm (6.46 cm)

US Size 12

UK Size: X

Circumference: 67.2 mm (6.72 cm)

Determining the correct ring size can be done easily and discreetly with these methods, ensuring a perfect fit for any ring you choose.