Convert between meters, centimeters, kilometers, inches, feet, yards, miles, and Taiwanese foot in real-time.
Convert between metrics, imperial and traditional units
Convert between meters, centimeters, kilometers, inches, feet, yards, miles, and Taiwanese foot in real-time. Use it for everyday work, development, learning, or quick verification.
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The metric system uses the meter as its base unit, and centimeters and kilometers are simple powers of ten. Imperial units are built on the inch, which is defined as exactly 2.54 cm. From there, 1 foot = 12 inches = 30.48 cm, 1 yard = 3 feet = 91.44 cm, and 1 mile = 1,609.344 m. To convert between any two units, you first express the value in meters and then divide by the size of the target unit. That is exactly how this converter works, instantly and for every field at once.
The converter also includes the Taiwanese chi (台尺), which is still common in Taiwan for carpentry, custom cabinets, curtains, mattresses and fabric. One Taiwanese chi is 10/33 of a meter, about 30.303 cm, and it is divided into 10 cun (寸) of roughly 3.03 cm each. So a measurement quoted as "2 chi 2 cun" means 2.2 chi, or about 66.67 cm, and a standard "5-chi" double bed is about 151.5 cm wide.
Be careful not to confuse the Taiwanese chi with the foot. Both are casually called "chi" (尺) in Chinese, but a foot is 30.48 cm, about 0.18 cm longer. Over ten units the difference grows to almost 1.8 cm, which matters for furniture or built-in fittings. The mainland Chinese shi chi is different again at one third of a meter (about 33.33 cm). When ordering something made to measure, confirm which unit is meant or simply agree on centimeters.
Type a value into any field and the other units update immediately, rounded to six decimal places. Use the copy buttons to paste results into a quote or message. All calculations happen in your browser and nothing is uploaded.
One Taiwanese chi is 10/33 m, about 30.303 cm. One cun is a tenth of a chi, about 3.03 cm.
No. A foot is exactly 30.48 cm, while a Taiwanese chi is about 30.303 cm.
An inch is defined as exactly 2.54 cm, so 1 cm is about 0.3937 inches.
Multiply feet by 30.48 and inches by 2.54, then add them. For example, 5 ft 10 in ≈ 152.4 + 25.4 = 177.8 cm.
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