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This measurement conversion calculator is a tool that allows you to perform conversions between the various units of measurements within different systems. Also, the tool also works as imperial and metric conversion calculator.

Every day in life, we all use different units of measurements like weight, length, speed, time, and several other quantities. People looking for an easy way for converting units of measurement, thus our accomplished team provided you with smart converter calculator.

Did you know!

A unit is said to be a measurement of a quantity that is explained or adopted by tradition or law. When it comes to history, different unit systems were created and used in several regions and cultures. Nowadays, the global standard of measurement is said to be as the International System of Units (SI) that is a modern form of the metric system.

Well, come to the point, before knowing about the unit converter calculator; let’s begin with some essential information of units of measurements.

International System of Units (SI Units):

The International System of Units (abbreviated SI from the French Système international d’unités), it is referred to as the international decimal system of weights and measures that derived from & extending the metric system of units. In 1960, the SI or “International System of Units” adopted by the 11th General Conference on Weights and Measures (CGPM), and it is abbreviated SI in all the languages. The SI unit conversions system is typically used in science, industry, and medicine.

Systems of Units:

The set of systems of units are:

  • SI (international Systems of Units) such as “meter, kilogram, second, ampere, Kelvin, mole, candela)
  • FPS acronym for “foot-pound-second”
  • MKS acronym for “meter-kilogram-second”
  • CGS acronym for “centimeter-gram-second”
  • EMU referred to as “Electromagnetic” “centimeter-gram-second-abampere”
  • ESU referred to as “Electrostatic” “centimeter-gram-second-abcoulom”
  • Atomic indicated as the “bohr-electron mass-atomic second-electron”
  • MTS acronym for “meter-toone-second”

The SI or International System of Units comprises the given three categories:

  • Base units
  • Supplementary units
  • Derived units

Let’s take a look at these categories:

Base Units:

A base unit is also said to be as a fundamental unit that is adopted for measurement of a base quantity. In this system, each unit is referred to as the dimensionally independent of the others. You can try unit conversion calculator to perform error free unit conversion. These dimensions are measurements of seven base units that are given below:

The Seven Base Units:

Swipe down!

  1. Length: The meter (m) referred to as the metric unit of length that is used for the measurement conversion. Experts depict that it is the distance traveled by light in a vacuum over a time interval of 1/299,792,458 of a second
  2. Mass: The kilogram (kg) is said to be as the metric unit of mass. It originally was referred to as the mass of the liter that is one thousandth of a cubic meter. Currently, it is stated as a mass of the platinum-iridium kilogram sample, which maintained by the International des Poids et Mesures in Sevres, France
  3. Time: The second (s) is the basic unit of time – A second (s) technically and accurate defined as the time interval equal to 9,192,631,770 periods of the radiation according to the transition between the 2 hyperfine levels of the ground state of the caesium-133 atom.
  4. Electric current: The ampere (A) is the basic unit of an electric charge, which is passing a point in an electric circuit per unit time. 6.241×1018 electrons, or one coulomb, per second are said to be as constitutes one ampere.
  5. Temperature: The Kelvin (K) is said to be as the basic unit of thermodynamic temperature scale. This scale is starts at 0 K and the incremental size of K is the same as that the degree of Celsius (°C). It is referred to as the triple point of water is exactly 273.16 K.
  6. Amount of Substance: The mole (mol) is the amount of a substance that contains as many elementary entities as there are atoms in 0.012 kg of carbon-12. Remember that when the mole unit is taken into account, the entities must be specified
  7. Luminous Intensity: The unit of luminous intensity or light is said to be as the candela (cd). Candela (cd) is said to be as the luminous intensity in a given direction of a source that emits monochromatic radiation of frequency.

Our base unit’s measurement converter helps you to perform measurement conversion between these seven base units.

The Base unit conversion chart:

Physical quantity quantity
symbol
Basic SI
Unit Name
Unit Symbol
length l, b, d, h, r, s, etc. metre m
mass m kilogram kg
time t second s
electric current I ampere A
thermodynamic temperature T kelvin K
amount of substance n mole mol
luminous intensity Iv candela cd

Supplementary Units:

Supplementary units are said to be as the dimensionless units that are used with base units to generate derived units in the SI (International System of units), the class only contains two, purely geometrical units, they are:

  • Plane angle: radian (rad)
  • Solid angle: steradian (sr)
  1. Radian: It is said to be as a unit of measure of angles – one radian is referred to as the angle that is made at the center of a circle by an arc for which a length is equal to the radius of the circle. Radian is taken into account for measuring plane angles, i:e 2D angles – (radian = length of Arc/radius)
  2. Steradian: The steradian or square radian is indicated as the SI unit of solid angle that specifically used in three dimensional geometry, and it is analogous to the radian that quanitifies planar angles. Steradian is considered for measuring solid angles, i:e 3D angles – steradian = area of cross-section/(radius^2)

Supplementary unit conversion table:

Quantity Quantity
symbol
SI Unit Name Unit Symbol Exp. in SI base units
plane angle α, β, γ, θ, Φ radian rad m m-1
solid angle ω, Ω steradian sr m2 m-2

Derived Units:

A derived unit is a unit that is determined by using the seven base units. For instance:

The SI or International System of Unit of force is the derived unit newton or N – A Newton (N) is equal to 1 m. kg/s2
You can use derived unit measurement calculator to get the instant and error-free measurements conversion. This tool allows you to convert units corresponding to the given table of derived units.

Derived units conversion chart:

Physical Quantity Quantity
symbol
SI Unit Unit
Symbol
Expression in SI base units Alternative expressions
frequency v, f hertz Hz s-1
force F newton N kg m s-2 J m-1
pressure p pascal Pa kg m-1 s-2 N m-2
energy (all forms) E, U, V, W,etc. joule J kg m2 s-2 N m = C V = V A s
power P watt W kg m2 s-3 J s-1 = VA
electric charge Q coulomb C A s
electric potential difference E, φ, ζ, Φ, η, etc. volt V kg m2 s-3 A-1 J A-1 s-1 = J C-1
electrical capacitance C farad F A2 s4 kg-1 m-2 C V-1
electrical resistance R ohm Ω kg m2 s-3 A-2 V A-1
electrical conductance G siemens S A2 s3 kg-1 m-2 A V-1 = Ω-1
magnetic flux Φ weber Wb kg m2 s-2 A-1 V s = T m2
magnetic induction B tesla T kg s-2 A-1 Wb m-2 = N A-1 m-1
inductance L, M henry H kg m2 s-2 A-2 V A-1 s = Wb A-1
luminous flux Φ lumen lm cd sr
illumination E lux lx cd sr m-2 lm m-2
activity (of a radionuclide) A becquerel Bq s-1
absorbed dose D gray Gy m2 s-2 J kg-1
dose equivalent H sievert Sv m2 s-2 J kg-1
catalytic activity z katal kat mol s-1
Celsius temperature t degree Celsius °C K
plane angle α , β , γ , θ , Φ radian rad m m-1 dimensionless
solid angle ω , Ω steradian sr m2 m-2 dimensionless

Now, give a read to know about the history of the Metric system:

History of the Metric System:

In 1975, the government of French officially adopted the metric system of measurement. Gabriel Mouton (a church vicar in Lyons), France, is named as the founding father of the metric system. In 1670, Gabriel did a great job as he proposed a decimal system of measurement, which the French scientists would couple of years further refining. In 1790, the National Assembly of France (French: Assemblée nationale) called for an invariable standard of measurements and weights having as its basis a unit of length that depends on the Earth’s circumference. As a convenience the system of measurements would be decimal based along with larger & smaller multiples of each unit that arrived by dividing & multiplying by 10 and its powers.
Attaining from the Greek word “metron” or a “measure” a commission assigned by the academy provided the name “meter” to the unit of length. The standard it indicated has been constructed so as to equal a fraction of the distance from the North Pole to the equator.

Because of the metric measurements adaptability to engineering and scientific work, the adoption of the system flourished with rapid expansion of the industrialized globe. In 1866, the U.S. Congress proclaimed the system lawful in commerce throughout the entire nation. Twenty years earlier, the government of French made use of the system compulsory.
From the period of 1970 to 1980, there has been as strong movement in the U.S toward the widespread use of the metric system measurement. There is a strong chance that the U.S will eventually yield to international pressure to create and label U.S. goods in the metric units of measurements. However, some of industries in the national have already converted to the metric measurement system that is now known as the SI (International System of Units).

Now, let’s take a look at the some important dates in the history of the metric system!

Important Dates In the History of The Metric System:

  • 1670 – Gabriel Mouton proposed the decimal system of measurement that depends on a fraction of the Earth’s circumference
  • 1671 – Jean Felix Piccard (a famous chemist) suggested the swinging pendulum as a measure of length
  • 1790 – the National Assembly of France (French: Assemblée nationale) asked the French Academy of Sciences to develop a standard system of measures and weights
  • 1795 – The Government of France adopted the metric measurement system
  • 1840 – French Government hired all Frenchmen to convert measurements to the metric system
  • 1866 – In the U.S. the congress legalized the use of the metric system of measurements. However, the use of this system was not required
  • 1875 – The Treaty of the Meter has been signed at close of the conference of International Bureau of Weights and Measures
  • 1957 – The United States Army and Marine Corps adopted the metric unit system. They used this system as the basis for their weapons and equipment
  • 1965 – Great Britain began adopting the metric measurement system
  • 1988 – The Congress passed the Omnibus Trade & Competitiveness Act that is called for all federal government agencies to utilize the metric measurement system for business by the end of 1992

Thankfully, you get detailed information regarding SI or International System of Units and also about the history of the metric system measurement. Now, read on to explore more about the unit conversion calculator for converting units.

About Unit Conversion Calculator:

The conversion calculator is a smart tool that helps to perform measurement conversions between the different units of measurements within different measure systems. This unit measurement calculator provides you with a basic understanding of the systems that currently in use throughout the world. In simple words, our team designed this measurements converter that convert units or just about anything to anything else you want!

How to do measurement conversion with this Conversion Calculator:

Converting measurements becomes easy with the assistance of this tool; this converter for units will do unit conversions corresponding to measurement standard systems. Let’s take a look how it works:

This express version of unit conversion calculator packed with a six conversion converters, these are:

  • Length
  • Temperature
  • Area
  • Volume
  • Weight
  • Time

So, if you want to perform measurement conversion with this measurement calculator, then simply stick to the mentioned steps:

  • All you need to make a click on the tab for which you want to perform measurements conversion
  • Very next, you ought to select the unit from the left drop down box for which you want to convert from and enter the value of this selected unit into the given field
  • Then, you ought to select the unit from the right drop-down box for which you want to get conversions
  • Once done, the unit measurement converter calculator perform quick real-time conversions

Difference between British Imperial System & Metric (SI) System:

Read on!

British Imperial System of Measurements:

Imperial units are also named as the British Imperial System, it is said to be the units of measurement of the British Imperial System. Officially, the traditional system of measures and weights used in Great Britain from 1824 until the adoption of the metric measurements system that begun in 1965. The United States or US Customary System of measures and weights is derived from the British Imperial System of measurements. Now, imperial units are legally stated in metric terms.

Weights And Measures In The British Imperial System:

A list of British Imperial weights and measures is provided in the imperial unit conversion table:

British Imperial and U.S. Customary systems of weights and measures
unit abbreviation or symbol equivalents in other units of same system metric equivalent
Weight
Avoirdupois* avdp
*The U.S. uses avoirdupois units as the common system of measuring weight.
ton
short ton 20 short hundredweight, or 2,000 pounds 0.907 metric ton
long ton 20 long hundredweight, or 2,240 pounds 1.016 metric tons
hundredweight cwt
short hundredweight 100 pounds, or 0.05 short ton 45.359 kilograms
long hundredweight 112 pounds, or 0.05 long ton 50.802 kilograms
pound lb, lb avdp, or # 16 ounces, or 7,000 grains 0.454 kilogram
ounce oz, or oz avdp 16 drams, 437.5 grains, or 0.0625 pound 28.350 grams
dram dr, or dr avdp 27.344 grains, or 0.0625 ounce 1.772 grams
grain gr 0.037 dram, or 0.002286 ounce 0.0648 gram
stone st 0.14 short hundredweight, or 14 pounds 6.35 kilograms
Troy
pound lb t 12 ounces, 240 pennyweight, or 5,760 grains 0.373 kilogram
ounce oz t 20 pennyweight, 480 grains, or 0.083 pound 31.103 grams
pennyweight dwt, or pwt 24 grains, or 0.05 ounce 1.555 grams
grain gr 0.042 pennyweight, or 0.002083 ounce 0.0648 gram
Apothecaries’
pound lb ap 12 ounces, or 5,760 grains 0.373 kilogram
ounce oz ap 8 drams, 480 grains, or 0.083 pound 31.103 grams
dram dr ap 3 scruples, or 60 grains 3.888 grams
scruple s ap 20 grains, or 0.333 dram 1.296 grams
grain gr 0.05 scruple, 0.002083 ounce, or 0.0166 dram 0.0648 gram
Capacity
U.S. liquid measures
gallon gal 4 quarts 3.785 litres
quart qt 2 pints 0.946 litre
pint pt 4 gills 0.473 litre
gill gi 4 fluid ounces 118.294 millilitres
fluid ounce fl oz 8 fluid drams 29.573 millilitres
fluid dram fl dr 60 minims 3.697 millilitres
minim min 1/60 fluid dram 0.061610 millilitre
U.S. dry measures
bushel bu 4 pecks 35.239 litres
peck pk 8 quarts 8.810 litres
quart qt 2 pints 1.101 litres
pint pt 1/2 quart 0.551 litre
British liquid and dry measures
bushel bu 4 pecks 0.036 cubic metre
peck pk 2 gallons 0.0091 cubic metre
gallon gal 4 quarts 4.546 litres
quart qt 2 pints 1.136 litres
pint pt 4 gills 568.26 cubic centimetres
gill gi 5 fluid ounces 142.066 cubic centimetres
fluid ounce fl oz 8 fluid drams 28.412 cubic centimetres
fluid dram fl dr 60 minims 3.5516 cubic centimetres
minim min 1/60 fluid dram 0.059194 cubic centimetre
Length
nautical mile nmi 6,076 feet, or 1.151 miles 1,852 metres
mile mi 5,280 feet, 1,760 yards, or 320 rods 1,609 metres, or 1.609 kilometres
furlong fur 660 feet, 220 yards, or 1/8 mile 201 metres
rod rd 5.50 yards, or 16.5 feet 5.029 metres
fathom fth 6 feet, or 72 inches 1.829 metres
yard yd 3 feet, or 36 inches 0.9144 metre
foot ft, or ‘ 12 inches, or 0.333 yard 30.48 centimetres
inch in, or “ 0.083 foot, or 0.028 yard 2.54 centimetres
Area
square mile sq mi, or mi2 640 acres, or 102,400 square rods 2.590 square kilometres
acre 4,840 square yards, or 43,560 square feet 0.405 hectare, or 4,047 square metres
square rod sq rd, or rd2 30.25 square yards, or 0.00625 acre 25.293 square metres
square yard sq yd, or yd2 1,296 square inches, or 9 square feet 0.836 square metre
square foot sq ft, or ft2 144 square inches, or 0.111 square yard 0.093 square metre
square inch sq in, or in2 0.0069 square foot, or 0.00077 square yard 6.452 square centimetres
Volume
cubic yard cu yd, or yd3 27 cubic feet, or 46,656 cubic inches 0.765 cubic metre
cubic foot cu ft, or ft3 1,728 cubic inches, or 0.0370 cubic yard 0.028 cubic metre
cubic inch cu in, or in3 0.00058 cubic foot, or 0.000021 cubic yard 16.387 cubic centimetres
acre-foot ac ft 43,560 cubic feet, or 1,613 cubic yards 1,233 cubic metres
board foot bd ft 144 cubic inches, or 1/12 cubic foot 2.36 litres
cord cd 128 cubic feet 3.62 cubic metres

Metric (SI) System:

No doubt, the metric system is quite simpler than the British imperial system. Metric system of measurements, international decimal system of weights and measures based on the series of base units, one for each of distance, mass, and volume, and even a series of prefixes to show what product of the base unit is being used. All you need to enter the values into the metric conversion calculator for converting metric units quickly.

Metric Measurement Conversions:

A list of metric unit conversions is provided in the given metric unit conversion table:

Common equivalents and conversion factors for U.S. Customary and SI systems
approximate common equivalents
*Common term not used in SI.
**Exact.
Source: National Bureau of Standards Wall Chart.
1 inch = 25 millimetres
1 foot = 0.3 metre
1 yard = 0.9 metre
1 mile = 1.6 kilometres
1 square inch = 6.5 square centimetres
1 square foot = 0.09 square metre
1 square yard = 0.8 square metre
1 acre = 0.4 hectare*
1 cubic inch = 16 cubic centimetres
1 cubic foot = 0.03 cubic metre
1 cubic yard = 0.8 cubic metre
1 quart (liq) = 1 litre*
1 gallon = 0.004 cubic metre
1 ounce (avdp) = 28 grams
1 pound (avdp) = 0.45 kilogram
1 horsepower = 0.75 kilowatt
1 millimetre = 0.04 inch
1 metre = 3.3 feet
1 metre = 1.1 yards
1 kilometre = 0.6 mile (statute)
1 square centimetre = 0.16 square inch
1 square metre = 11 square feet
1 square metre = 1.2 square yards
1 hectare* = 2.5 acres
1 cubic centimetre = 0.06 cubic inch
1 cubic metre = 35 cubic feet
1 cubic metre = 1.3 cubic yards
1 litre* = 1 quart (liq)
1 cubic metre = 264 gallons
1 gram = 0.035 ounce (avdp)
1 kilogram = 2.2 pounds (avdp)
1 kilowatt = 1.3 horsepower
conversions accurate within 10 parts per million
inches × 25.4** = millimetres
feet × 0.3048** = metres
yards × 0.9144** = metres
miles × 1.60934 = kilometres
square inches × 6.4516** = square centimetres
square feet × 0.0929030 = square metres
square yards × 0.836127 = square metres
acres × 0.404686 = hectares
cubic inches × 16.3871 = cubic centimetres
cubic feet × 0.0283168 = cubic metres
cubic yards × 0.764555 = cubic metres
quarts (liq) × 0.946353 = litres
gallons × 0.00378541 = cubic metres
ounces (avdp) × 28.3495 = grams
pounds (avdp) × 0.453592 = kilograms
horsepower × 0.745700 = kilowatts
millimetres × 0.0393701 = inches
metres × 3.28084 = feet
metres × 1.09361 = yards
kilometres × 0.621371 = miles (statute)
square centimetres × 0.155000 = square inches
square metres × 10.7639 = square feet
square metres × 1.19599 = square yards
hectares × 2.47105 = acres
cubic centimetres × 0.0610237 = cubic inches
cubic metres × 35.3147 = cubic feet
cubic metres × 1.30795 = cubic yards
litres × 1.05669 = quarts (liq)
cubic metres × 264.172 = gallons
grams × 0.0352740 = ounces (avdp)
kilograms × 2.20462 = pounds (avdp)
kilowatts × 1.34102 = horsepower

Prefixes And Units Used In The Metric System:

A list of the prefixes and units used in the metric measurement conversion system is provided in the given metric unit conversion chart:

physical quantity unit symbol
*The metric system of bases and prefixes has been applied to many other units, such as decibel (0.1 bel), kilowatt (1,000 watts), megahertz (1,000,000 hertz), and microhm (one-millionth of an ohm).
Base units* length metre m
area square metre square m, or m2
are (100 square metres) a
volume cubic metre cubic m, or m3
stere (1 cubic metre) s
weight gram g
metric ton (1,000,000 grams) t
capacity litre l
temperature degree Celsius °C
prefix symbol factor by which base unit is multiplied example
Prefixes designating multiples and submultiples* exa- E 1018 = 1,000,000,000,000,000,000
peta- P 1015 = 1,000,000,000,000,000
tera- T 1012 = 1,000,000,000,000
giga- G 109 = 1,000,000,000
mega- M 106 = 1,000,000 megaton (Mt)
kilo- k 103 = 1,000 kilometre (km)
hecto-, hect- h 102 = 100 hectare (ha)
deca-, dec- da 10 = 10 decastere (das)
1
deci- d 10−1 = 0.1 decigram (dg)
centi-, cent- c 10−2 = 0.01 centimetre (cm)
milli- m 10−3 = 0.001 millilitre (ml)
micro-, micr- μ 10−6 = 0.000001 microgram (μg)
nano- n 10−9 = 0.000000001
pico- p 10−12 = 0.000000000001
femto- f 10−15 = 0.000000000000001
atto- a 10−18 = 0.000000000000000001