AU to India Ring Size Conversion – Australian to Indian Ring Size Chart

AU to India Ring Size Conversion

Convert Australian ring sizes to Indian ring sizes instantly — complete AU to India ring size chart with diameter in mm, circumference, and US size reference

🇦🇺 Australian / UK Sizes 🇮🇳 Indian Sizes 1–26 📐 mm Measurements 🔄 US Size Reference 🧮 Free Calculator

🇮🇳

Most Common
Indian Women's Size

🇦🇺

L½

Equivalent AU
Women's Size

📊

Total Indian
Sizes in Chart

📐

Round Up If
Between Sizes

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AU to India Ring Size Calculator

Select your Australian ring size to instantly find your Indian ring size

Your Indian Ring Size

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Complete AU to India Ring Size Conversion Chart

🇦🇺 AU / UK Size	🇮🇳 India Size	🇺🇸 US Size	Diameter (mm)	Circumference (mm)	Typical Wearer
B	1	½	12.4 mm	39.0 mm	Child
D	2	2	13.2 mm	41.5 mm	Child
E	3	2½	13.7 mm	42.9 mm	Child
F	4	3	14.0 mm	44.0 mm	Small Women
G	5	3½	14.4 mm	45.0 mm	Women
G½	6	3¾	14.7 mm	46.1 mm	Women
H	7	4	15.0 mm	46.8 mm	Women
H½	—	4¼	15.2 mm	47.4 mm	Women
I	8	4½	15.4 mm	48.0 mm	Women
J	—	4¾	15.5 mm	48.7 mm	Women
J½	9	5	15.7 mm	49.3 mm	Women
K	—	5¼	15.9 mm	50.0 mm	Popular ♀
K½	10	5½	16.0 mm	50.6 mm	Popular ♀
L	11	5¾	16.3 mm	51.2 mm	Popular ♀
L½ ⭐	12	6	16.6 mm	51.9 mm	Most Common ♀
M	—	6¼	16.8 mm	52.5 mm	Popular ♀
M½	13	6½	16.9 mm	53.1 mm	Women / Men
N	—	6¾	17.1 mm	53.8 mm	Women / Men
N½	14	7	17.3 mm	54.4 mm	Women / Men
O	—	7¼	17.5 mm	55.1 mm	Women / Men
O½	15	7½	17.7 mm	55.7 mm	Men
P	—	7¾	17.9 mm	56.3 mm	Men
P½	16	8	18.1 mm	57.0 mm	Men
Q	—	8¼	18.3 mm	57.6 mm	Men
Q½	17	8½	18.5 mm	58.3 mm	Men
R	—	8¾	18.6 mm	58.9 mm	Men
R½	18	9	18.8 mm	59.5 mm	Men
S ⭐	19	9¼	19.0 mm	60.2 mm	Most Common ♂
S½	20	9½	19.2 mm	60.8 mm	Popular ♂
T	—	9¾	19.4 mm	61.4 mm	Men
T½	21	10	19.6 mm	62.1 mm	Men
U	22	10¼	19.8 mm	62.7 mm	Large Men
U½	23	10½	20.0 mm	63.4 mm	Large Men
V½	24	11	20.4 mm	64.6 mm	Large Men
W½	25	11½	20.8 mm	65.5 mm	XL
X½	26	12	21.2 mm	66.6 mm	XL

⭐ AU L½ = India 12 — Most common Indian women's size

⭐ AU S = India 19 — Most common Indian men's size

📐 Highlighted rows = most popular sizes

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How to Convert AU to India Ring Size

Method 1 — Use the Conversion Chart (Easiest)

Know your Australian ring size

This is usually a letter (A–Z+3). You can find it on the inside of your existing ring or from a jeweller.

Find it in the AU column above

Locate your AU size in the leftmost column of the conversion chart above.

Read across to the India column

The number in the 🇮🇳 India column is your Indian ring size — simple as that.

If you fall between sizes

Always round up to the next size — a slightly loose ring is easier to resize than a tight one.

Method 2 — Use Diameter (mm)

Measure the inner diameter of your ring

Use a ruler to measure straight across the inside opening of an existing well-fitting ring in millimetres.

Match to the chart

Find the closest diameter (mm) in the chart above and read across to the India size column.

Use the calculator above

You can also enter your AU size in the calculator at the top of this page for an instant result.

📐 Quick Reference Formulas

AU / UK → India Size Logic

AU uses letters (A–Z+3) · India uses numbers (1–26)

Both share the same base standard as UK ring sizes — the systems align via diameter (mm)

Diameter → Circumference

Circumference (mm) = Diameter (mm) × 3.14159

Example: 16.6 mm × 3.14159 = 51.9 mm → AU L½ = India 12

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Tips for Accurate Ring Size Conversion

🌡️Measure at the right time of day. Fingers are slightly larger in the evening and when warm. Measure mid-afternoon for the most accurate size.
📏Measure the specific finger you'll wear the ring on. Ring sizes differ between fingers — your left ring finger may be a different size to your right.
🔄Always round up if between sizes. If your measurement falls between two Indian sizes, choose the larger one — it's easier to resize down than up.
💍Wide bands need a larger size. Rings wider than 6mm sit tighter on the finger. Go up by half a size for wide-band rings when converting.
🇮🇳Indian jewellers may use their own sizing. Some local Indian jewellers use a proprietary sizing system. Always confirm with the specific store before ordering online from India.
🛒Order a ring sizer set. If buying jewellery online from India while in Australia, a plastic ring sizer set (available cheaply online) gives you a physical Indian size to confirm accuracy.

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Frequently Asked Questions

Is Australian ring size the same as UK ring size? ▼

Yes — Australian ring sizes follow the exact same letter-based system as UK ring sizes. Both run from A to Z+3. So if a jeweller in India asks for your UK size, you can give them your Australian size — they are identical.

What is AU size L½ in Indian ring size? ▼

Australian size L½ equals Indian ring size 12. This is one of the most commonly purchased women's sizes in India, equivalent to approximately 16.6 mm diameter and a circumference of 51.9 mm.

What is AU size S in Indian ring size? ▼

Australian size S equals Indian ring size 19. This is one of the most popular men's sizes in India, with a diameter of approximately 19.0 mm and a circumference of 60.2 mm.

Why do some AU sizes show "—" for India size? ▼

The Indian ring sizing system uses fewer increments than the Australian/UK system. Some AU half-sizes (like H½ or J) fall between official Indian sizes. In these cases, round up to the next Indian size available.

Can I buy an Indian ring in my Australian size? ▼

Yes — most Indian jewellers, especially online stores like Candere, Caratlane, and Tanishq, accept both Indian sizes (numbers) and international sizes (UK letters/US numbers). Use this conversion chart to find your equivalent Indian size before ordering.

Is AU size N the same as India size 14? ▼

Not exactly — AU size N½ corresponds to Indian size 14. AU size N itself falls between Indian sizes 13 and 14. If your AU size is N, the closest Indian size is 14 (always round up when between sizes).

What is the most common ring size in India for women? ▼

The most common Indian ring size for women is size 12, which corresponds to Australian size L½ and US size 6. This is equivalent to a finger diameter of approximately 16.6 mm.

How do I measure my ring size at home in Australia? ▼

Wrap a thin strip of paper around the base of your finger, mark where it overlaps, then measure the length in mm — this is your circumference. Match this to the chart above to find both your Australian and Indian ring size. Alternatively, measure the inner diameter of a well-fitting ring and use the converter at the top of this page.