Common unit conversion length unit conversion 1 km = 1 000m1m =1decimeter1decimeter =10cm1cm50. Square meter = 65438438+0000 cubic centimeters 1 cubic decimeter = 1 liter 1 cubic centimeter = 1 ml 1 cubic meter = 1000 liter weight unit conversion 1. Rmb unit conversion 1 yuan = 10 angle 1 angle = 10 minute/yuan = 1 00 minute time unit conversion 1 century = 100 year. 10 \ 65438+abortion in February (30 days) are: 4 \ 6 \ 9 \ 165438+ 10, February 28th, leap year, February 29th and 365 days in the whole year. Leap year 366 days 1 day =24 hours 1 hour =60 minutes 1 minute =60 seconds 1 hour =3600 seconds. The graphic calculation formula commonly used in primary school mathematics is 1, the perimeter, area s, area a, side length = side length *4 area = side length C = cube v volume A surface area side length = side length * side length *6 volume = side length * side length s table =a*a*6 table = 6a2v = a * a * av = Cuboid v volume s area a length b width h height (1) surface area = (length * width+length * height+width * height) *2 (2) volume = length * width * height S=2(ab+ah+bh) V=abh 5, triangle s area a bottom h height area = bottom * height. Parallelogram S area A base H height area = base * height S=ah 7, trapezoid S area A upper base B lower base H height area = (upper base+lower base) * height ÷2 S=(a+b)* h÷2 8, The circumference of circular S area C π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π π— Cylinder V volume H height S bottom area R bottom radius C bottom perimeter lateral area = bottom perimeter * height (2) surface area = lateral area+bottom area *2 (3) volume = bottom area * height S side =Ch S side =πdh V=Sh V=πr2h cylinder volume = lateral area ÷2* radius 10, cone V volume H height.

2. How to convert the normal length unit?

First of all, we need to know several simple unit conversion formulas to facilitate our conversion of length units.

1 m equals 100 cm, 1 m equals 3 square feet, and 1 m equals 3. 28 feet, 1 meter equals 39.

3 inches, 1 ruler equals 13. 12 inch, 1? Feet equals 12? Inches, 1? Feet equals zero.

304 meters and 1 city inch are equal to 1. 3 1 inch, 1? Inches equals 2.

54? Centimeter. To put it more simply, we can get the result with the following formula: 1 m =3 feet, 1 cm =0.

3 inches, 1 inch =3. 33 cm, 1 cm =0.

03 feet, 1 foot =33. 33 cm, 1 scale is equal to 13.

12 inch, 1 foot equals 33. 33 cm, 1 inch equals 1.

3 1 inch. With these formulas, you can work out all the necessary contents.

Next, the rabbit will give you a simple transformation, with a length of 2 feet 4. Firstly, the length unit conversion of 2 feet 4 to centimeters is carried out, and 2 feet 4 is 2.

4 feet, multiplied by 1000 cm, divided by 3 city feet, you can get the final result, that is, the answer is 80 cm. Let's talk about the conversion of 2 feet 4 to inch length units. Two feet four equals two.

4 feet, use 2 directly. 4 times 13.

12 inch, the result is 3 1. 4883 1 inch, that is, 2 feet and 4 inches, the answer is 3 1.

Five inches.

What is the unit of 3.3? MHZ？

The explanations of the two upstairs are a bit biased.

"MHZ" should actually be written as "MHz", which consists of two-dimensional units. The "m" in front is a digital unit of millions, which is the prefix of English Mega and can also be called "trillion".

And "Hz" is the unit of frequency in physics, indicating the number of vibrations (oscillations) per second. Translated into "Hertz", it was named in memory of the German physicist Henrich Rudolf Hertz.

Megahertz means one million times per second. On the conversion relationship: the advance speed of international standard units is in thousands, and one trillion is equal to 1000 times 1000, that is, 100000, and the mathematical expression is 10 6, that is, the sixth power of 10.

1K equals one thousand, 1M= one million, 1G= one billion, 1T equals one trillion ... such as frequency:1000 Hz =1KHz; 1000 khz = 1 MHz； 1000 MHz = 1 GHz； 1000 GHz = 1 GHz .

4. How to convert the area unit?

How many square decimeters is 1. 1 square meter? Square meters are units of area and cannot be measured by length. 1 m2 equals 1 m times 1 m, and one square decimeter equals 1 decimeter times one decimeter. The square conversion rate is 100, which means that 1 square meter is equal to.

Second, 1 m2 equals to square centimeter because 1 m2 = 100 square decimeter, 1 square decimeter = 100 square centimeter, so 1 m2 =100 */kl. 3. How many meters is1square meter? Square meters are units of area, meters are units of length, one is length and the other is area, so they cannot be converted.

But? 1 m * 1 m = 1 m2。 How many hectares is 1500m2? 1 ha = 10000m2,1500m2 (m2) = 0.

15 hectare (ha) 5. How many square decimeters is 10 square meter? 1 decimeter = 1 0cm,1decimeter =100cm? So 10 square decimeter = 1000 square centimeter. 6. 120 square decimeter equals 1 square meter = 100 square decimeter equals how many square meters, that is, 1 square decimeter equals 0.

0 1 m2, so: 120 square decimeter = 120X0. 0 1= 1。

2 square meters.