This is a very general question which requires more space than available here. The metric systems is a set of measurement standards for such things as length, weight/mass, and volume. These units are usually related to equivalent "English" units by simple multiplicative conversions. Here are a couple of examples: Convert 12 centimeters (a metric unit) to inches. You need to know that there are about 2.54 cm/inch. Then DIVIDE 12 cm by 2.54 to get 4.72 inches. If you wanted to go the other way, say to convert 5 inches to cm, then MULTIPLY 5 by 2.54 to get 12.7 cm. In order to do other conversions you would need a table of conversion factors or to have such a table stored in your calculator. The major exception to the simple multiplication rule for conversions is when converting temperatures from degrees centrigrade to Fahrenheit or the reverse. Then you must adjust the scales to account for the fact that 0 degrees C = 32 degrees F.
i dont know i also need help
Dimensional analysis
Tons and kilometres cannot be converted. They measure different physical properties.
a gram
Newtons are a measure of force, joules are a measure of energy. The two measure different characteristics and, according to the most basic rules of dimensional analyses, attempting to convert from one to the other is not valid.
Degrees is a unit of angular measurement, millimeters is a unit of length. You don't convert one to the other.Degrees is a unit of angular measurement, millimeters is a unit of length. You don't convert one to the other.Degrees is a unit of angular measurement, millimeters is a unit of length. You don't convert one to the other.Degrees is a unit of angular measurement, millimeters is a unit of length. You don't convert one to the other.
You don't really "convert a unit of measurement"; you convert from one unit to another. The two - "from" and "to" are always required.
Dimensional analysis
That means that if you have a measurement in one unit, you convert it to another unit. For example, if a measurement is given in millimeters, you may need to convert it to meters.
move the decimal point the the correct spot
You can't convert milliliters to meters. You can convert one unit of volume to another (for example, milliliters to liters, or to cubic meters), one unit of length to another (for example, millimeter to meter), but you can't convert units that measure completely different things.
There isn't any one general answer. It depends on what unit you want to convert to what other unit.
You can't convert that. In general, you can only convert from one unit to another of the same kind, for example, one unit of mass to another unit of mass.
If you mean, convert µg to cm², that conversion doesn't make sense. You can only convert units that measure the same kind of thing, for example, one unit of mass to another unit of mass.
You can't. Miles is a measure of length. Acres is a measure of area.
You can't convert that. You can convert from one unit of length to another, or from one unit of area to another, but you can't convert between units of length and area.
You can't convert that. You can convert from one linear unit to another linear unit, or from one square unit to another square unit, but not between linear units and square units.
You can't convert that. You can convert from one linear unit to another linear unit, or from one square unit to another square unit, but not between linear units and square units.