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# Units of Measurement Chart

In the previous article, I have written about the fundamental and derived quantities, the different system of units, Importance of measurement etc in detail. If you are not aware of that topics consider first reading my complete article about the measurement of physical quantities.

This article focuses on the units of measurement chart which is very useful while measuring a quantity. The units of measurement charts are nothing but a collection of several charts which includes the multiples and submultiples chart, units conversion chart, length unit conversion chart, mass conversion chart, time conversion chart, volume conversion chart, area conversion chart, speed conversion chart, temperature conversion chart and some physical constants list.

By going through this article you will get a brief idea about the conversion between different units and you can learn the values of some important constants.

## Multiples and Submultiples chart

The multiples and submultiples of units become useful for expressing the magnitudes of physical quantities which are either too large or too small in comparison to the unit. The multiples and submultiples of units with their prefixes and symbols are given in the below table.

 Prefix Name Prefix Symbol Base  10 Decimal English Word yotta Y 1,000,000,000,000,000,000,000,000 1024 septillion zetta Z 1,000,000,000,000,000,000,000 1021 sextillion exa E 1,000,000,000,000,000,000 1018 quintillion peta P 1,000,000,000,000,000 1015 quadrillion tera T 1,000,000,000,000 1012 trillion giga G 1,000,000,000 109 billion mega M 1,000,000 106 million kilo k 1,000 103 thousand hecto h 100 102 hundred deca da 10 101 ten 1 100 one deci d 0.1 10-1 tenth centi c 0.01 10-2 hundredth milli m 0.001 10-3 thousandth micro $mu$ $mu$ 0.000,001 10-6 millionth nano n 0.000,000,001 10-9 billionth pico p 0.000,000,000,001 10-12 trillionth femto f 0.000,000,000,000,001 10-15 quadrillionth atto a 0.000,000,000,000,000,001 10-18 quintillionth zepto z 0.000,000,000,000,000,000,001 10-21 sextillionth yocto y 0.000,000,000,000,000,000,000,001 10-24 septillionth

Chart 1: Multiples & submultiples of units.

## Units of measurement chart conversion

The units of measurement chart for some commonly used unit conversion are given below.

 Quantity From To Operation Length inch (in)foot (ft)mile (mi) metre (m)metre (m)metre (m) (inch) x 0.0254(foot) x 0.3048(mile) x 1609.34 Mass pound (lb)metric ton (t)ounce (oz) kilogram (kg)kilogram (kg)kilogram (kg) (pound) x 0.4536(ton) x 1000(ounce) x 0.02835 Volume litre (l)gallon (ga) cubic metre (m3)cubic metre (m3) (litre) x 0.001(gallon) x 0.00379 Temperature fahrenheit (F)celcius (C) Kelvin (K)Kelvin (K) {(fahrenheit) – 32} x $frac{5}{9}$ $frac{5}{9}$ + 273.15(celcious) + 273.15

Chart 2: Units conversion chart.

For example, a length of 15 inches can be converted into its SI unit metre using the above table:
(15 inches) x 0.0254 = 0.381 metres.

Similarly, a temperature of 113 Fahrenheit can be converted to Kelvin using the above table:
(113°F − 32) × 5/9 + 273.15 = 318.15K

Now let us discuss each units conversion chart separately.

## Length unit conversion chart

Given below is the units of measurement chart for length unit conversion where you can convert from one unit to other.

 Nano-metre(nm) Micro-metre(μm) Milli-metre(mm) Centi-metre(cm) Inch (in) Feet (ft) Yard (yd) Metre (m) Kilo-metre(km) Mile (mi) Nauticalmile (nmi) 1 0.001 1e-6 1e-7 3.94e-8 – – – – – – 1000 1 0.001 1e-4 3.94e-5 – – – – – – 1e+6 1000 1 0.1 0.0394 0.00328 0.00109 .001 0.000001 6.21e-07 – 1e+7 10000 10 1 0.3937 0.03281 0.01094 0.01 0.00001 0.000006 – – – 25.4 2.54 1 0.08333 0.02778 0.0254 0.000025 0.000016 – – – 304.8 30.48 12 1 0.33333 0.3048 0.000305 0.000189 – – – 914.4 91.44 36 3 1 0.9144 0.000914 0.000568 0.00049 1e+9 1e+6 1000 100 39.370 3.28084 1.09361 1 0.001 0.000621 0.00054 – – 1000000 100000 39370.1 3280.84 1093.61 1000 1 0.621371 0.53996 – – 1609344 160934.4 63360 5280 1760 1609.3 1.609344 1 0.86898 – – – 185200 72913.4 6076.12 2025.37 1852 1.852 1.15078 1

Chart 3: Length unit conversion chart

For example, a length of 185 feet can be converted into metre using the above table:
(185 feet) x 0.3048 = 56.388 metres.

Similarly, a length of 12 miles is equivalent to 21120 yards
(12 miles) x 1760 = 21120 yards.

## Mass conversion chart

The unit conversion table for mass is given below. By using the below units of measurement chart, you can convert a quantity from one mass unit to other.

 Microgram (μg) Milligram (mg) Grams (g) Ounces (oz) Pounds (lb) Kilograms (kg) Stone (st) Short ton /US ton (shton) Metric tonne/Tonne(t) Long ton /Imperial tonne(Lton) 1 0.001 1e-6 – – – – – – – 1000 1 0.001 3.53e-5 – – – – – – 1e+6 1000 1 0.03527 0.00221 0.001 0.00016 0.000001 0.000001 9.84e-07 28349500 28349.5 28 1 0.0625 0.02835 0.00446 0.000031 0.000028 0.000028 4.536e+8 453592 453.6 16 1 0.4536 0.07143 0.0005 0.000454 0.000446 1e+9 999999.2 1000 35.2734 2.20459 1 0.15747 0.001102 0.001 0.000984 – 6350290 6350.29 224 14 6.35029 1 0.007 0.006350 0.00625 – – 907200 32000 2000 907.2 142.857 1 0.9072 0.892913 – – 1000000 35273.4 2204.59 1000 157.473 1.102293 1 0.984252 – – 1016000 35837.7 2239.86 1016 160 1.1199291 1.016 1

Chart 4: Mass conversion chart

For example, a mass of 2863 kilogram can be converted into metric tonne using the above table:
(2863 kg) x 0.001 = 2.863 tonne.

Similarly, a mass of 29 pounds is equivalent to 13154 grams.
(29 lb) x 453.6 = 13154 grams.

## Time conversion chart

You can convert from one unit of time to other by using the time conversion chart given below.

 Nano-second Micro-second Milli-second Seconds Minutes Hours Days Weeks Month Year Decade Century 1 0.001 1e-6 – – – – – – – – – 1000 1 0.001 1e-6 – – – – – – – – 1e+6 1000 1 0.001 1.67e-5 – – – – – – – 1e+9 1e+6 1000 1 0.01667 0.0003 – – – – – – 6e+10 6e+7 60000 60 1 0.0167 0.0007 – – – – – – 3.6e+9 3.6e+6 3600 60 1 0.0417 0.0059 0.001 0.0001 – – – – 8.6e+7 86400 1440 24 1 0.1427 0.033 0.0027 – – – – – 604800 10080 168 7 1 0.230 0.0192 – – – – – 2.63e+6 43800 730.00 30.417 4.3452 1 0.0833 0.0083 – – – – – 525600 8760 365 52.143 12 1 0.1 0.01 – – – – – 87600 3650 521.43 120 10 1 0.1 – – – – – 876000 36500 5214.3 1200 100 10 1

Chart 5: Time conversion chart

For example, 4244 seconds can be converted to minutes using the above table
(4244 seconds) x 0.01667 = 70.74 minutes

Similarly, 20 decade is equivalent to 200 years.
(20 decades) x 10    = 200 years
(20 decades) x 120 = 2400 months.

## Volume conversion chart

The units of measurement chart for volume unit conversion is given below where you can convert from one unit of volume to other.

 Cubiccentimetre (cm3) Cubicinch  (in3) Litre     (ℓ) USgallons (US gal) Imperialgallons (Imp. gal) Cubicfoot   (ft3) US barrel {oil} (US brl) Cubicmetre (m3) 1 0.061024 0.001 0.000264 0.00022 0.000035 0.000006 0.000001 16.4 1 0.016387 0.004329 0.003605 0.000579 0.000103 0.000016 1000 61 1 0.264201 0.22 0.035 0.00629 0.001 3785 231 3.79 1 0.832701 0.13 0.02381 0.003785 4545 277 4.55 1.20 1 0.16 0.028593 0.004545 28317 1728 28.31685 7.481333 6.229712 1 0.178127 0.028317 158970 9701 159 42 35 6 1 0.15897 1000000 61024 1000 264 220 35 6.29 1

Chart 6: Volume conversion chart

For example, a volume of 38 litres can be converted into cubic feet using the above table:
(38 ℓ) x 0.035 = 1.33 ft3

Similarly, a volume of 19 cubic meters is equivalent to 19000 litres.
(19 m3) x 1000 = 19000 litres.

## Area conversion chart

By using the units of measurement chart given below for area unit conversion, you can convert from one unit of area to another.

 Millimetresquare (mm2) Centimetresquare (cm2) Squareinch(in2) Squarefoot(ft2) Squareyard(yd2) Squaremetre(m2) Acre Hectare SquareKilometre(km2 ) Square mile(mi2 ) 1 0.01 0.0016 0.000011 0.000001 0.000001 – – – – 100 1 0.155 0.001076 0.00012 0.0001 – – – – 645.16 6.4516 1 0.006944 0.000772 0.000645 – – – – 92903 929.0304 144 1 0.111111 0.092903 – – – – 836127 8361.274 1296 9 1 0.836127 0.00021 – – – 1000000 10000 1550 10.76391 1.19599 1 0.00025 1e-4 1e-6 – – – – 43560 4840 4047.09 1 0.4047 0.004047 0.00156 – – – 107639.10 11959.9 10000 2.47105 1 0.01 0.00386 – – – 10763888.9 1195987.6 999000 247.1 100 1 0.38610 – – – 27881999.9 3097999.9 2590000 640.082 259 2.58999 1

Chart 7: Area conversion chart

For example, an area of 286 square feet can be converted into square metre using the above table:
(286 ft2) x 0.092903 = .26.570 m2

Similarly, an area of 23 hectares is equivalent to 56.834 acres.
(23 hectares) x 2.47105 = 56.834 acres.

## Speed conversion chart

The units of measurement chart for speed conversion is given below, using which you can convert the speed of a body from one unit to other.

 Foot/minute (ft/min) Metre/minute (m/min) Kilometre/hour (km/h) Foot/second (ft/s) Miles/hour (mi/h) Knot Metre/second (m/s) 1 0.304739 0.018287 0.016667 0.011365 0.009875 0.00508 3.281496 1 0.060007 0.054692 0.037293 0.032397 0.01667 54.68504 16.66467 1 0.911344 0.621371 0.539957 0.2778 60 18.28434 1.09728 1 0.681818 0.592484 0.3048 87.99213 26.81464 1.60934 1.46667 1 0.868976 0.44704 101.269 30.8667 1.852 1.68781 1.15078 1 0.514444 196.8504 60 3.600005 3.28084 2.23694 1.94384 1

Chart 8: Speed conversion chart

For example, 42 km/h of speed can be converted to Miles/hour using the above table
(42 km/h) x 0.621371 = 26.098 Miles/hour.

Similarly, 35 Metre/second is equivalent to 2100 Metre/minute.
(35 m/s) x 60 =  2100 m/min.

## Temperature conversion chart

The units of measurement chart for temperature conversion is given below. The below formulas can be used to convert a value of temperature from degree Celsius to Fahrenheit or to Kelvin or vice-versa.

 Degree Celsius (°C) Degree Fahrenheit (°F) Kelvin (K) °C (°C x 9/5) + 32 (°C + 273.15) (°F – 32) x 5/9 °F {(°F – 32) x 5/9} + 273.15 (K – 273.15) {(K − 273.15) × 9/5} + 32 K

Chart 9: Temperature conversion chart

For example,

• 22°C = (22 x 9/5) + 32 = 39.6+32 = 71.6 °F
• 22°C = 22 + 273.15  = 295.15 K
• 68 °F = (68 – 32) x 5/9 = 36 x 5/9 = 20°C
• 68 °F = {(68 – 32) x 5/9} + 273.15  =20 + 273.15  =  293.15 K
• 285 K = (285 – 273.15) = 11.85 °C
• 285 K = {(285 − 273.15) × 9/5} + 32 = {11.85 × 9/5} + 32 = 53.33 °F

## Physical constants list

The units of measurement chart given below contains some important  physical constants list and their values and symbols.

 Sl. No Name Symbol Value 1. The Speed of light in vacuum $c$ $c$ 2.9979 x 108  ms-1 2. Charge of electron $e$ $e$ 1.602 x 10-19 C 3. Gravitational constant $G$ $G$ 6.673 x 10-11 Nm2kg-2 4. Planck constant $h$ $h$ 6.626 x 10-34 Js 5. Boltzmann constant $k$ $k$ 1.381 x 10-23 JK-1 6. Avogadro number $N_{A}$ $N_{A}$ 6.022 x 1023 mol-1 7. Universal gas constant $R$ $R$ 8.314 J mol-1 K-1 8. Mass of electron $m_{e}$ $m_{e}$ 9.110 x 10-31 kg 9. Mass of neutron $m_{n}$ $m_{n}$ 1.675 x 10-27 kg 10. Mass of proton $m_{p}$ $m_{p}$ 1.673 x 10-27 kg 11. Electron – charge to mass ratio $e/m_{e}$ $e/m_{e}$ 1.759 x 1011 C/kg 12. Faraday constant $F$ $F$ 9.648 x 104 C/mol 13. Rydberg constant $R$ $R$ 1.097 x 107 m-1 14. Bohr radius $a_{0}$ $a_{0}$ 5.292 x 10-11 m 15. Stefan-Boltzmann constant $sigma$ $sigma$ 5.670 x 10-8 W m-2 K-4 16. Wien’s constant $b$ $b$ 2.898 x 10-3 m K 17. Permitivity of free space $varepsilon _{0}$ $varepsilon _{0}$ $1/4pi varepsilon _{0}$ $1/4pi varepsilon _{0}$ 8.854 x 10-12 C2 N-1 m-28.987 x 109 N m2 C-2 18. Permeability of free space $mu_{0}$ $mu_{0}$ 4𝜋 x 10-7 T m A-1≅ 1.257 x 10-6 Wb A-1 m-1 19. Mechanical equivalent of heat $J$ $J$ 4.186 J cal-1 20. Standard atmospheric pressure 1 atm 1.013 x 105 Pa 21. Absolute zero 0 K -273.15 oC 22. Electron volt 1 eV 1.602 x 10-19 J 23. Unified Atomic mass unit 1 u 1.661 x 10-27 kg 24. Electron rest energy mc2 0.511 MeV 25. The energy equivalent of 1 uVolume of ideal gas(0 0C and 1 atm) 1 u c2V 931.5 MeV22.4 L mol-1 26. Acceleration due to gravity(sea level, at the equator) $g$ $g$ 9.78049 m s-2 27. 1 light year $ly$ $ly$ 9.4607 × 1012 km 28. 1 horsepower hp 745.7 Watts

Chart 10: Physical constants list

Another chart containing dimensional formulas for more than 100 physical quantities and their SI units are written in my previous article about the dimensions and dimensional formulas.

I hope the information in this article helps you to get a brief idea about the units of measurement chart. If you think I have missed any essential or helpful chart, do let me know in the comments section.

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