Also available in our
Android app, with charts and full breakdown tables.
Rate this calculator
Was it useful? A quick star rating helps others — and you can leave a comment too.
Rate it:
★
★
★
★
★
⚡ Cun (Chinese Inches) to Millimeters: the quick answer
1 cun = 33.3333 mm
1 cun (Chinese inch) equals 33.3333 millimeters
To convert cun (Chinese inches) to millimeters, multiply the value by 33.3333.
To go the other way, multiply millimeters by 0.03 to get cun (Chinese inches).
↔ Convert millimeters to cun (Chinese inches) instead
🧮 Formula
Every unit here is defined by its length in meters, so the conversion factor is (meters per cun (Chinese inch)) ÷ (meters per millimeter).
📊 Cun (Chinese Inches) to Millimeters conversion table
✏️ Worked examples
Convert 25 cun (Chinese inches) to millimeters
25 cun × 33.3333 = 833.333 mm
Try this example →
Convert 250 cun (Chinese inches) to millimeters
250 cun × 33.3333 = 8,333.33 mm
Try this example →
📘 About these units
Cun (Chinese inch) (cun). The cun is the traditional Chinese inch, 1/30 of a meter (3.333 cm), used in tailoring and traditional medicine. Used in: Asia — China & Taiwan.
Millimeter (mm). A millimeter is one thousandth of a meter, used for small measurements such as thickness and rainfall.
❓ Frequently asked questions
How many millimeters are in one cun (Chinese inch)?
There are 33.3333 millimeters in one cun (Chinese inch).
How do I convert cun (Chinese inches) to millimeters?
Multiply the number of cun (Chinese inches) by 33.3333. For example, 10 cun (Chinese inches) equal 333.333 millimeters.
How many cun (Chinese inches) are in one millimeter?
One millimeter equals 0.03 cun (Chinese inches).
🔗 More length conversions
All length units →
What people are saying
★★★★★
Anonymous · 02 Oct 2026
★★★★★
Anonymous · 01 Oct 2026
★★★★★
Anonymous · 28 Sep 2026