Makevana · Ring sizing guide

Find your size.
Choose with more confidence.

Compare US ring sizes with inside diameter and circumference measurements. This guide helps women and men shopping for rings in Australia or overseas estimate their size before choosing a design.

This chart uses US numerical sizes. Check the sizing information on your chosen product before ordering.

Your measurement, made clearer

Find your approximate US ring size

Enter the inside diameter of a ring that fits, or your measured finger circumference. The finder compares your measurement with the chart below.

Compare your measurement with the full chart below.

This is an estimate, not a guaranteed fit. A jeweller or physical ring sizer can help confirm your size, especially for wide bands or measurements between sizes.

Start with a careful measurement

How to measure your ring size at home

Option 1: Measure a ring that fits

  1. Choose a ring that fits the same finger on the same hand you intend to wear the new ring on.
  2. Place the ring flat on a ruler.
  3. Measure straight across its centre, from one inside edge to the opposite inside edge.
  4. Enter that measurement as “Ring inside diameter” or compare it with the chart.

Do not include the metal band in your measurement. A ruler reading is approximate; small differences matter.

Option 2: Estimate finger circumference

  1. Wrap a narrow strip of non-stretch paper around the base of the intended finger.
  2. Keep it snug without pulling tightly or compressing the skin.
  3. Mark where the paper overlaps.
  4. Lay it flat and measure from the starting edge to the mark.
  5. Enter the length as “Finger circumference”.

Paper can shift or tighten while measuring. Repeat the measurement and confirm with a physical sizer if unsure.

Check the fit, not just the number: the ring needs to fit comfortably at the base of your finger and pass over your knuckle. Wider bands can feel tighter than narrow rings, so ask for advice about the specific design.

Your measurements at a glance

US ring size chart: sizes 4–16

The same size measurements apply to women’s and men’s rings. Dimensions are approximate and rounded. Available sizes depend on the individual product.

For unit conversion: 10 mm = 1 cm, and 25.4 mm = 1 inch. On smaller screens, swipe the table sideways if needed.

US sizes with approximate measurements in millimetres
US size Inside diameter (mm) Circumference (mm)
4 14.88 46.8
4.5 15.29 48.0
5 15.70 49.3
5.5 16.10 50.6
6 16.51 51.9
6.5 16.92 53.1
7 17.32 54.4
7.5 17.73 55.7
8 18.14 57.0
8.5 18.54 58.3
9 18.95 59.5
9.5 19.35 60.8
10 19.76 62.1
10.5 20.17 63.4
11 20.57 64.6
11.5 20.98 65.9
12 21.39 67.2
12.5 21.79 68.5
13 22.20 69.7
13.5 22.61 71.0
14 23.01 72.3
14.5 23.42 73.6
15 23.83 74.8
15.5 24.23 76.1
16 24.64 77.4

Browse rings by US size →

Before you choose

Ring sizing questions

What does inside diameter mean?

Inside diameter is the straight-line distance across the centre of a ring’s opening. Measure from inside edge to inside edge, excluding the metal band. Circumference is the distance around the opening.

Does this chart use Australian or US ring sizes?

This Makevana chart uses US numerical sizes, such as 6, 7.5 and 9. If you have a letter size from another chart, confirm its inside measurements before choosing a US size here.

Are women’s and men’s ring sizes measured differently?

No. A given US size represents the same approximate inside measurement for women’s and men’s rings. The fit can still feel different depending on the width and shape of the band.

What should I do if I am between sizes?

Confirm your measurement with a physical ring sizer or jeweller before ordering. Consider the knuckle, band width and the particular ring design. The closest chart measurement is only a starting point.

Can I use an image on my screen as a ring sizer?

Screen zoom and device dimensions change the displayed size of an image. Use a physical ruler or ring sizer instead of assuming an on-screen circle is actual size.

What if I need a different size after ordering?

Read our ring size exchange information and contact us with your order details to discuss the applicable options.