How to Convert mm to US
To convert mm to us, multiply the value by 1.
The Formula
US = mm × 1
Key Fact
1 inner diameter (mm) = 1 us
Tip: To convert us back to mm, divide by 1.
mm to US Ring Size
Convert mm (mm) to us (US) with formulas, examples, and conversion tables.
mm
US
1 mm = -12.7611 US
Full precision:-12.7611 US
Step-by-Step Solution
To convert 1 mm to us, we multiply by 1 because one inner diameter (mm) equals exactly 1 us.
1 inner diameter (mm) = 1 us
Since each inner diameter (mm) contains 1 us, we multiply our value by this factor:
1 × 1 = -12.7611 us
So 1 mm = -12.7611 us.
Quick check: -12.7611 ÷ 1 = 1 mm
Example Conversions
Example 1: 1 mm = -12.7611 US
1 × 1 = -12.7611
1 × 1 = -12.7611
Example 2: 5 mm = -7.9592 US
5 × 1 = -7.9592
5 × 1 = -7.9592
Example 3: 10 mm = -1.9568 US
10 × 1 = -1.9568
10 × 1 = -1.9568
mm to US Table
| mm | US |
|---|---|
| 14 mm | 2.8451 US |
| 15 mm | 4.0456 US |
| 16 mm | 5.2461 US |
| 17 mm | 6.4466 US |
| 18 mm | 7.6471 US |
| 19 mm | 8.8475 US |
| 20 mm | 10.048 US |
| 21 mm | 11.2485 US |
1 Inner Diameter (mm) in Other Units
| Unit | 1 mm = |
|---|---|
| mm to US Ring Size | -12.7611 US |
| Inner Diameter (mm) to UK/Australia | -28.425 UK |
| Inner Diameter (mm) to EU/France | 3.1416 EU |
| Inner Diameter (mm) to Circumference (mm) | 3.1416 mm |