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Ring Size Guide

Marcozo — Fit Guide

Find Your
Perfect Ring Size

Two methods. One goal: a ring that fits the way it should.

How to Measure Choose Your Method

Use a ring that already fits the finger you're sizing for.

Place it flat and measure the internal diameter in millimetres. Make sure your ruler starts at exactly the 0mm mark.

Find your measurement in the chart below.

DIAMETER
Internal Diameter (mm) US / CAN UK / AUS German
16.5 mm 6 N 16½
17.3 mm 7 P 17¼
18.1 mm 8 R 18
19.0 mm 9 T 19
19.8 mm 10 V 20
20.6 mm 11 F 20¾
21.4 mm 12 X 21¼
22.2 mm 13 Z 22
1

Cut a strip of paper

Cut a thin strip of paper roughly 15cm long and about 1cm wide.

Cut a strip of paper
2

Wrap it around your finger

Wrap the strip around the finger you want to size, right where the ring would sit. Pull it snug for the most accurate result.

Wrap paper around your finger
3

Mark and measure

Mark where the paper meets, lay flat on a ruler, and record the length in millimetres. That's your circumference.

Mark and measure
Circumference (mm) US / CAN
51.9 mm 6
54.4 mm 7
57.0 mm 8
59.5 mm 9
62.1 mm 10
64.6 mm 11
67.2 mm 12
67.7 mm 13

Know your size? Start shopping.

316L stainless steel. 18K gold PVD. Built to last.
Pro Tips For an Accurate Measurement

Measure at the end of the day

Fingers are at their largest in the evening. Morning measurements can leave you half a size too small.

Account for band width

Wider bands fit tighter. If ordering a thick band, go up a full size from your normal measurement.

Avoid cold hands

Cold fingers can shrink up to half a size. Measure when your hands are comfortably warm.

Skip the cocktails & appetizers

Alcohol and salt cause swelling. Measure before the drinks and snacks, not after.

Still not sure about your size?

Our team is happy to help — reach out any time.