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To help compare different orders of magnitude, this section lists lengths between 10 −3 m and 10 −2 m (1 mm and 1 cm). 1.0 mm – 1/1,000 of a meter; 1.0 mm – 0.03937 inches or 5/127 (exactly) 1.0 mm – side of a square of area 1 mm²; 1.0 mm – diameter of a pinhead; 1.5 mm – average length of a flea [27]
The metric prefix mille (Latin for "one thousand") and the metre: Conversions 1 mm in ..... is equal to ... micrometres 1 × 10 3 μm = 1000 μm centimetres 1 × 10 −1 cm = 0.1 cm metres 1 × 10 −3 m = 0.001 m kilometres 1 × 10 −6 km inches 0.039 370 in feet 0.003 2808 ft
Area of one side of a U.S. penny [19] [20] 500 mm 2: Area of a typical postage stamp: 10 −3 1,100 mm 2: Area of a human retina [21] 4,600 mm 2: Area of the face of a credit card [22] 4,800 mm 2: Largest side of a cigarette box 10 −2: 1 square decimetre (dm 2) 10,000 mm 2: Index card (3 × 5 inches) [23] 60,000 mm 2: American letter paper ...
The French scale measures and is proportional to the outer diameter of a catheter, with 1 French (Fr) defined as 1 ⁄ 3 millimeter, making the relationship: 1 mm = 3 Fr. Thus, the outer diameter of a catheter in millimeters can be calculated by dividing the French size by 3. [ 2 ]
By default, the output value is rounded to adjust its precision to match that of the input. An input such as 1234 is interpreted as 1234 ± 0.5, while 1200 is interpreted as 1200 ± 50, and the output value is displayed accordingly, taking into account the scale factor used in the conversion.
= 5.919 388 020 8 3 × 10 −6 m 3: teaspoon (metric) ≡ 5.0 × 10 −6 m 3: ≡ 5.0 × 10 −6 m 3: teaspoon (US customary) tsp ≡ 1 ⁄ 6 US fl oz = 4.928 921 593 75 × 10 −6 m 3: teaspoon (US food nutrition labeling) tsp ≡ 5 mL [18] = 5 × 10 −6 m 3: timber foot: ≡ 1 cu ft = 0.028 316 846 592 m 3: ton (displacement) ≡ 35 cu ft ...
The lambda (λ) is a unit of volume equal to one cubic millimetre (1 mm 3). The litre (symbol l or L) is a unit of volume equal to one cubic decimetre (1 dm 3). The stere (st) is a unit of volume equal to 1 m 3.
These permit measurements within 0.001 millimetre to be made on metric micrometers, or 0.0001 inches on inch-system micrometers. The additional digit of these micrometers is obtained by finding the line on the sleeve vernier scale which exactly coincides with one on the thimble.