Metric units and MeasurementLengthVolumeMassTimeTemperatureDecimals in measurement



The standard unit of length in the metric mechanism is the meter. Various other units that length and also their equivalents in meters space as follows: 1 millimeter = 0.001 meter1 centimeter = 0.01 meter1 decimeter = 0.1 meter1 kilometer = 1000 meters

We abbreviate these lengths together follows:1 millimeter = 1 mm1 centimeter = 1 cm1 meter = 1 m1 decimeter = 1 dm1 kilometre = 1 km

For reference, 1 meter is a little longer 보다 1 garden or 3 feet. That is about fifty percent the height of a very tall adult. A centimeter is nearly the diameter that a dime, a small less than half an inch. A millimeter is about the thickness that a dime.

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The traditional unit the volume in the metric system is the liter. One liter is same to 1000 cubic centimeters in volume. Other units the volume and also their equivalents in liters room as follows: 1 milliliter = 0.001 liter1 centiliter = 0.01 liter1 deciliter = 0.1 liter1 kiloliter = 1000 liters

From this units, we see that 1000 milliliters equal 1 liter; so 1 milliliter equals 1 cubic centimeter in volume. We abbreviate these volumes as follows:1 milliliter = 1 ml1 centiliter = 1 cl1 deciliter = 1 dl1 liter = 1 l1 kiloliter = 1 kl

For reference, 1 liter is a little much more than 1 quart. One teaspoon equals around 5 milliliters.


The standard unit of fixed in the metric system is the gram. Other units of mass and their equivalents in grams space as follows:1 milligram = 0.001 gram1 centigram = 0.01 gram1 decigram = 0.1 gram1 kilogram = 1000 grams

We abbreviate these masses as follows:1 milligram = 1 mg1 centigram = 1 cg1 decigram = 1 dg1 gram = 1 g1 kilogram = 1 kg

For reference, 1 gram is about the massive of a record clip. One kilogram is around the fixed of a liter the water.


The following conversions are advantageous when working v time:1 minute = 60 seconds1 hour = 60 minute = 3600 seconds1 job = 24 hours1 main = 7 days1 year = 365 1/4 job (for the planet to travel once approximately the sun)

In practice, every three calendar years will have actually 365 days, and every fourth year is a "leap year", which has actually 366 days, to comprise for the extra quarter day over 4 years. The year 1992, 1996, 2000, and also 2004 space all leap years. This provides us a total of 52 finish 7 work weeks in each calendar year, v 1 day left over (or 2 in a leap year).

The year is separated into 12 months, every of which has actually 30 or 31 days, other than for February, which has 28 work (or 29 job in a leap year).

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Temperature is express in degrees Celsius in the metric system. The boiling suggest of water (at sea level) is 100°Celsius, or 100°C. The freezing suggest of water (at sea level) is 0° Celsius. A hot day is about 30° Celsius.


Decimals in measurement

We usage decimals come specify systems of measurement when we need an ext precision around length, volume, mass, or time. For example, once specifying the elevation of a human 1.63 meter tall, come say that person is 1 or 2 meters tall doesn"t give us a very good idea of exactly how tall that person really is. The prefixes because that the different units that length, volume, and also mass in the metric device obey the following rules:


PrefixMultiply by


So for example:1 hectometer = 100 meters1 centigram = 0.01 gram3 milliliters = 3 × (0.001 liters) = 0.003 liters0.9 kilometers = 0.9 × (1000 meters) = 900 meters