Online Measurement & Unit Converter & Calculator Free

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Try Our Free Online Conversion Calculator!

Ever wondered how many feet there are in a mile? Or how many grams are in an ounce?

Or even how many kilopascals are in a pascal!

Well, you can now find out with our online unit and measurements converter & calculator. Just choose measurement or unit, then on the left choose the unit of measurement you would like converted then on the right choose the unit of measurement you would like to see the unit converted to.

This is a great online measurement and unit conversion tool for cooking, sports, racing, tradies, science, and much more!

Measurements and Units Available to be converted.

Length, Area, Mass, Volume, Volume Flow Rate, Temperature, Time, Frequency, Speed, Pace, Pressure, Digital, Illuminance, Parts-Per, Voltage, Current, Power, Apparent Power, Reactive Power, Energy, Reactive Energy Angle, Charge, Force, Acceleration converter.

How do you convert units of measure?

Easily with our online unit and measurement conversion & calculator tool. Use our calculation tool to convert all kinds of measurements and units to help you with cooking, science, working, and much more!

What is a free measurement conversion tool?

From Wikipedia, the free encyclopedia. Conversion of units is the conversion in different measurement units for the identical quantity, typically in multiplicative conversion factors.

What are the seven basic units of measurement?

There are seven fundamental units in the SI system: the meter (m), the kilogram (kg), the second (s), the kelvin (K), the ampere (A), the mole (mol), & the candela (cd).

What is the difference between metric and imperial?

Whereas most countries adopt the metric system, which comprises measuring units of meters & grams, the imperial system is used wherever things are measured in feet, inches, & pounds.

Is Imperial or Metric better?

Metric is a better system of units than imperial.

In other words, it fits together very well, & estimations are easy because it is decimal. This is a significant benefit for use in the home, education, industry, & science.

Are cups metric or imperial?

The cup is a cooking measure of volume, generally associated with cooking & serving sizes. It is traditionally equivalent to half a liquid pint in US conventional units, or an amount between 200 ml & 250 ml (​1⁄5 and ​1⁄4 of a litre) in the metric system, which may change due to location.

Different Systems of Units

There have been many systems of units in history. A system of units can be defined as a collection of units of measurement that are linked by rules. A unit of measurement refers to a specific magnitude of a quantity used as a standard of measurement for the same type of quantity.

Many systems of measurement used to be defined at a local level in the past. They could have been based on such arbitrary factors as the length of the thumb of a king. This may have worked on a local basis, but when it comes to science and trade, the use of systems that are based on units other than your own makes communication difficult. Over time, more consistent and universal systems have been developed. Some of the most popular units today include the metric, imperial, and United States customary systems.

The International System of Units is the current standard metric system. It consists of seven SI bases units of length and mass, temperature, time, electric current, luminous intensity, and amount of substance. Although SI is widely used in science (including the USA), there are still some countries that use their own systems of units, such as the United States.

It is partly because of the high cultural and financial costs associated with changing a measurement system, as well as the potential benefits that a standardized system could bring. Because US customary units (USC), which are so well-established in the United States of America, are still used every day in many applications that require standardization, SI is not likely to be replaced. Many unit converters, including this Conversion Calculator, exist to make it easy for people to communicate various measurements globally.

The History of the Pound

The eighth and ninth centuries of the Common Era (CE) saw the rise of Arab civilization in Spain and the Middle East. Because a minted currency could not be easily cut or shaved to decrease its weight, the Arabs used it as a measure of weight. A silver dirhem, a common measure of weight, was used by the Arabs. It had an approximate weight of 45 barley grains. A Wukryeh was ten dirhems. Latin translations of “uncia” (the origin of “ounce”) were used to describe it.

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Trade spread over time from the Mediterranean to Europe, including the northern German City-States. A pound, 16 ounces or 7200 grains of silver became a common measure in many areas.

This measure was also adopted by England, but King Offa reduced the weight of the pound from 5400 grains to allow for smaller coins. William the Conqueror, King of England, retained the 5400-grain-grain-pound for minting coins but switched to the 7200-grain pound for all other purposes.

Although many countries started using the pound, England was one of them. The British pound sterling or GBP was equivalent to one pound of silver in King Offa’s time. However, the avoirdupois weight scale was introduced during Queen Elizabeth’s reign in the 16th century. It was based on coal weight and was named after the French phrase “avoir des pois” (goods that are of weight or property). The avoirdupois corresponded to 7,000 grains. It was 256 drams of 27.34 grains each or 16 ounces each of 437 1/2 grains. The official definition of the avoirdupois kilogram in English-speaking countries is 0.45359237 kilograms.

Over time, different systems of measuring have been developed in Asian countries. In ancient India, for example, the “Satamana”, a measure of weight, was used. It was equal to 100 gunja berries. China’s first emperor Shi Huang Di devised a system for weights and measurements in the third century BCE (Before the Common Era).

The shi was the equivalent of approximately 132 pounds. The length units Chi and Zhang measured approximately 25 cm (9.8 inches) or 3 meters (9.8feet), respectively. Chinese developed a method to guarantee accuracy by using a special bowl that made a particular sound when struck. If the sound is not correct, it was invalidated.

Online measurement unit converter calculator free

A Brief History of the Metric System

John Wilkins, a 1668 inventor of the decimal system, proposed that length, area and volume be linked to one another using a pendulum with a beat of 1 second as a base unit for length. Gabriel Mouton, a prominent scientist of the time, proposed a decimal system that was based on the earth’s circumference in 1670. This idea was supported by Jean Picard, Christiaan Huygens and other notable scientists at the time. However, it didn’t take root for about 100 more years.

It was obvious to countries that exchanged scientific ideas and traded weights and measurements by the middle of the eighteenth century. Charles Maurice de Talleyrand – Perigord, Prince of Talleyrand in 1790 presented proposals to the British (represented John Riggs – Miller) and Americans (represented Thomas Jefferson) to establish a common standard for length that was based on the lengths of pendulums.

Thomas Jefferson presented the “Plan for Establishing Uniformity In the Coinage, Weights and Measures of the United States” in the same year. This plan proposed a decimal system where units were related by powers of ten. The French committee, which was composed of some of the best scientists of the time, reached a similar conclusion and proposed a decimal system to all weights.

The report was considered by Congress, but it was not adopted. John Riggs Miller, a British politician, was elected to the British Parliament in 1790. The measurement system was not implemented in France. In 1795, French law officially defined the metric system. The metric system was adopted in France only in 1799, but it was not widely followed across the country.

The metric system was not widely adopted quickly. Areas annexed to France by Napoleon were among the first to adopt it. Two-thirds of Europe’s population was using the metric system by 1875. Nearly half of the world had also adopted it by that time. In 1920, only 22% of the world’s population used either the US imperial or US customary systems. 25% used mainly the metric system and 53% each.

In 1960, the International System of Units was published. It is currently the most commonly used system of measuring. All developed countries have adopted it, except the United States. However, it is heavily used in science and the military even though the United States has not yet adopted it.

Types of Everyday conversions You Can Calculate With Our Online Unit Measurement Conversion Tool

  • centimeters to inches
  • kilograms to pounds
  • metric conversion
  • pounds to kilograms
  • inches to centimeters
  • centimeters to feet
  • grams to kilograms
  • feet to centimeters
  • 1 acre to sq ft
  • centimeters to millimeters
  • metric conversion chart
  • convert kilograms to pounds
  • millimeters to centimeters
  • rad to degrees
  • metric conversion calculator
  • convert pounds to kilograms
  • lbs to kilograms
  • grams per oz
  • 30 centimeters to inches
  • 20 centimeters to inches
  • measurement conversion chart
  • deg to rad
  • sq inches to sq feet
  • kilograms to pounds conversion
  • 10 centimeters to inches
  • 15 centimeters to inches
  • inches to centimeters conversion
  • miles per hour to feet per second
  • 100 kilograms to pounds
  • 50 centimeters to inches
  • kilometers to centimeters
  • metric to standard conversion
  • kilograms to ounces
  • ounces to kilograms
  • 1 acre in square feet
  • 40 centimeters to inches
  • 1 kilogram to pounds
  • convert sq ft to acres
  • cm to millimeters
  • centimeters to kilometers
  • 1 centimeter
  • grams to fluid ounces
  • teaspoon to tablespoon conversion
  • 25 centimeters to inches
  • 18 centimeters to inches
  • 16 centimeters to inches
  • 5 centimeters to inches
  • inches to metric
  • scale converter
  • 23 centimeters to inches
  • convert centimeters to feet
  • 17 centimeters to inches
  • 12 centimeters to inches
  • metric to standard conversion chart
  • length conversion chart
  • 13 centimeters to inches
  • convert grams to kilograms
  • gallon to m3
  • 1 radian to degrees
  • volume conversion
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  • kitchen conversion chart
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  • 70 centimeters to inches
  • 3 centimeters to inches
  • 45 centimeters to inches
  • measurement conversion calculator
  • 8 centimeters to inches
  • 2 kilograms to pounds
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  • 21 centimeters to inches
  • 200 kilograms to pounds
  • 1 kilogram to grams
  • 14 centimeters to inches
  • convert circumference to diameter
  • liters to cubic centimeters
  • convert grams to teaspoons
  • mm to centimeters
  • 6 feet in centimeters
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  • cubic inches per gallon
  • 1 metric ton
  • 5 feet in centimeters
  • standard to metric conversion
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  • millimeters to kilometers
  • 1 centimeters to inches
  • 6 centimeters to inches
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  • 35 centimeters to inches
  • 7 centimeters to inches
  • kilogram to lbs
  • convert feet to centimeters
  • 80 kilograms to pounds
  • 24 centimeters to inches
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  • ft to centimeters
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  • watt hour calculator
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  • 90 kilograms to pounds
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  • cup conversion
  • metric to imperial conversion
  • 75 kilograms to pounds
  • 120 centimeters to inches
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  • 150 centimeters to inches
  • convert kilograms to grams
  • 6 ft in centimeters
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  • 26 centimeters to inches
  • cooking measurement converter
  • millimeter to feet
  • ml to teaspoon conversion
  • 1 inch in centimeters
  • acre to sq m
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  • convert m2 to ft2
  • 55 centimeters to inches
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  • litres per gallon
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  • 5 inches in centimeters
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  • 1 sq m to sq ft
  • convert 1 kilogram to pounds
  • litres to millilitres
  • 1 hectare to m2
  • sq ft to sq mt
  • convert sq m to sq ft
  • conversion of units of measurement
  • convert m2 to acres
  • 1 metric ton to kg
  • 1 square feet to m2
  • cubic centimeter to liter
  • convert btu to kw
  • convert ft2 to m2
  • metre to centimetre
  • unit converter length
  • hectare to sq ft
  • convert 1 pound to kilograms
  • convert 1 gallon to fluid ounces
  • grams to millilitres
  • 1 marla in sq ft
  • online metric conversion
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  • 1 metric ton to ton
  • grams to ounces conversion calculator online
  • 1 sq ft to m2
  • convert sq ft to sq m
  • online converter length
  • online scale converter
  • decimal to tape measure converter
  • cm to sq ft
  • centimeters to inches calculator online
  • 1 sq feet
  • centimeter to inch converter online
  • online unit converter length
  • metric converter line
  • kilograms to stones and pounds
  • ounce to gram converter online
  • metric to imperial calculator online
  • centimeter to feet converter online
  • cm to percentage calculator
  • convert 5 feet to centimetres
  • online cooking conversion
  • 1 sq yard to sq feet
  • lux to lumens conversion online
  • ounces to grams conversion calculator online
  • online measurement converter
  • online recipe converter
  • slpm to lpm conversion online
  • hectare to sq feet
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Further Reading

History Of The Metric System | Metric Metal

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