watts’ conversion compilation - watertown unified school …€¦ · web view ·...

Watts’ Conversion Compilation

Acceleration [angular]unit name symbol SI equiv.

revolutions per square second rps2 1 rps2

revolutions per square minute rpm2 2.77778e-04 rps2

radian per square second rads2 1.59155e-01 rps2

Acceleration [generic]unit name symbol SI equiv.

centimeters per square second cm/s2 1e-02 m/s2

meter per square second m/s2 1 m/s2

foot per square second ft/s2 3.048e-01 m/s2

gravitational accelaration g 9.80665 m/s2 i

galileo Gal 1e-02 m/s2 i

Areaunit name symbol SI equiv.

square centimeter cm2 1e-04 m2

square meter m2 1 m2 i

are are 1e+02 m2

hectare ha 1e+04 m2

square kilometer km2 1e+06 m2 i

square inch inch2 6.4516e-04 m2 i

square foot ft2 9.2903e-02 m2

square yard yard2 8.36127e-01 m2 i

square sq 9.2903 m2 i

square rod rd2 2.52929e+01 m2

rood rood 1.01171e+03 m2 i

acre ac or A 4.04686e+03 m2 i

homestead homestead 6.47497e+05 m2 i

square mile mile2 (int) 2.58999e+06 m2

section sec 2.58999e+06 m2 i

township twp 9.32396e+07 m2 i

1

Density [Mass]unit name symbol SI equiv.

kilogram per cubic meter kg/m3 1 kg/m3

gram per cubic centimeter g/cm3 1e+03 kg/m3

pound per cubic foot lb/ft3 1.60185e+01kg/m3

pound per cubic inch lb/inch3 2.76799e+04kg/m3

grains per cubic foot grains/ft3 2.28835e-03 kg/m3

Density [Molar]unit name symbol SI equiv.

mol per cubic meter mol/m3 1 mol/m3

kilomol per cubic meter kmol/m3 1e+03 mol/m3

poundmol per cubic foot lbmol/ft3 1.6018e+04mol/m3

mol per liter mol/l 1e+03 mol/m3

Energyunit name symbol SI equiv.

joule J 1 N • m i

Newton meter N • m 1 N • m i

kilojoule kJ 1e+03 N • m

calorie cal 4.1868 N • m i

kilocalorie kcal 4.1868e+03 N • m i

British termal unit Btu 1.05506e+03 N • m

i

kilowatt hour kW • h 3.6e+06 N • m

horse power hour hp • h 2.6845e+06 N • m

foot pound force ft • lbf 1.35582 N • m

gigajoule GJ 1e+09 N • m

erg erg 1e-07 N • m i

Enthalpy [Mass]unit name symbol SI equiv.

kilojoule per kilogram kJ/kg 1 kJ/kg

2

unit name symbol SI equiv.

joule per kilogram J/kg 1e-03 kJ/kg

kilocalorie per kilogram kcal/kg 4.1868 kJ/kg

calorie per gram cal/g 4.1868 kJ/kg

British termal units per pound Btu/lb 2.32601 kJ/kg

Enthalpy [Molar]unit name symbol SI equiv.

Joule per mole J/mol 1 J/mol

Joule per kilomole J/kmol 1e-03 J/mol

kilocalorie per kilomole kcal/kmol 4.1868 J/mol

calorie per mole cal/mol 4.1868 J/mol

British thermal units per pound mole Btu/lbmol 2.32601 J/mol

kilojoule per mole kJ/mol 1e+03 J/mol

kilocalorie permole kcal/mol 4.1868e+03 J/mol

Enthalpy [Volume]unit name symbol SI equiv.

Megajoule per cubic meter MJ/m3 1 MJ/m3

kilojoule per cubic meter kJ/m3 1e-03 MJ/m3

british thermal units per gallon Btu/gal 2.7872e-01 MJ/m3

british thermal units per cubic foot Btu/ft3 3.72589e-02MJ/m3

kilocalorie per cubic meter kcal/m3 4.1868e-03 MJ/m3

Flowrate [Mass]unit name symbol SI equiv.

kilogram per second kg/s 1 kg/s

kilogram per hour kg/hr 2.77778e-04 kg/s

metric ton per day mto/d 1.15741e-02 kg/s

metric ton per year mto/yr 3.17098e-05 kg/s

pound per second lb/s 4.53592e-01 kg/s

pound per hour lb/hr 1.25998e-04 kg/s

kilogram per minute kg/min 1.66667e-02 kg/s

pound per minute lb/min 7.55987e-03 kg/s

3

Flowrate [Molar]unit name symbol SI equiv.

kilomole per second kmol/s 1 kmol/s

kilomole per minute kmol/min 1.66667e-02kmol/s

kilomol per hour kmol/hr 2.77778e-04kmol/s

tonmole per day tmol/d 1.15741e-02kmol/s

poundmole per second lbmol/s 4.53592e-01kmol/s

poundmole per minute lbmol/min 7.55987e-03kmol/s

poundmole per hour lbmol/hr 1.25998e-04kmol/s

Flowrate [Volume]unit name symbol SI equiv.

cubic meter per second m3/s 1 m3/s

cubic meter per hour m3/hr 2.77778e-04 m3/s

cubic meter per day m3/d 1.15741e-05 m3/s

cubic foot per second ft3/s 2.83168e-02 m3/s

cubic foot per hour ft3/hr 7.86579e-06 m3/s

cubic foot per day ft3/d 3.27741e-07 m3/s

US gallon per second USgal/s 3.78541e-03 m3/s

US gallon per hour USgal/hr 1.0515e-06 m3/s

US gallon per day USgal/d 4.38126e-08 m3/s

oil barrel per day oil bbl/d 1.84013e-06 m3/s

cubic decimeter per second dm3/s 1e-03 m3/s

liter per minute l/min 1.66667e-05 m3/s

Forceunit name symbol SI equiv.

dyne dyne - g cm/s2 1e-05 N i

Poundal Poundal 1.38255e-01 N i

Newton N 1 N i

pound force lbf 4.44822 N i

kilogram force kgf 9.80665 N i

Kilo Newton kN 1e+03 N

4


Sthene Sthene 1e+03 N i

kip kip 4.44822e+03 N i

ton force US tnf US 8.89644e+03 N i

ton force UK tnf UK 9.96402e+03 N i

Heat capacityunit name symbol SI equiv.

British thermal unit per pound per degree farenheit

Btu/(lb • °F) 4.1868e+03 J/(kg • K)

calorie per gram per degree celcius cal/(g • °C) 4.1868 J/(kg • K)

colorie per pound per degree celcius cal/(lb • °C) 9.23031 J/(kg • K)

erg per gram per degree celcius erg/(g • °C) 1e-04 J/(kg • K)

joule per gram per degree celcius J/(g • °C) 1e-03 J/(kg • K)

joule per kilogram per kelvin J/(kg • K) 1 J/(kg • K)

kilocalorie per kilogram per degree celcius

kcal/(kg • °C) 4.1868e+03 J/(kg • K)

kilojoule per kilogram per kelvin kJ/(kg • K) 1e+03 J/(kg • K)

megajoule per kilogram per kelvin MJ/(kg • K) 1e+06 J/(kg • K)

watt second per kilogram per degree celcius

W • s/(kg • °C) 1 J/(kg • K)

Heat transfer coefficientunit name symbol SI equiv.

watt per square meter per kelvin W/(m2 • K) 1 W/(m2 • K)

kilowatt per square meter per kelvin kW/(m2 • K) 1e+03 W/(m2 • K)

watt per square centimeter per kelvin

W/(cm2 • K) 1e-04 W/(m2 • K)

kilocalorie per hour per square meter kelvin

kcal/(hr • m2 • K) 1.163 W/(m2 • K)

calorie per second per square centimeter kelvin

cal/(s • cm2 • K) 4.1868e+08 W/(m2• K)

British thermal unit per hour per square foot per degree farenheit

Btu/(hr • ft2 • °F) 5.67826 W/(m2 • K)

Length5


Ångstrom Å 1e-10 m i

micron μm 1e-06 m

millimeter mm 1e-03 m

centimeter cm 1e-02 m

meter m 1 m i

kilometer km 1e+03 m

line li 2.11667e-03 m i

inch " 2.54e-02 m i

hand hand 1.016e-01 m i

link link 2.01168e-01 m i

foot ft 3.048e-01 m i

yard yd 9.144e-01 m i

rod rd 5.0292 m i

chain ch 2.01168e+01 m i

furlong fur 2.01168e+02 m i

mile (statute) mile 1.60934e+03 m i

mile (nautical) nmi, naut mi 1.852e+03 m i

league league 4.82803e+03 m i

parsec pc 3.08568025e+16 m i

Massunit name symbol SI equiv.

milligram mg 1e-06 kg

carat (metric) carat 2e-04 kg i

gram g 1e-03 kg

kilogram kg 1 kg i

quintal quintal 1e+02 kg i

ton (metric) t 1e+03 kg

atomic unit mass u 1.66054e-27 kg i

grain gr 6.47989e-05 kg i

dram dram 1.77185e-03 kg i

ounce oz 2.83495e-02 kg i

pound lb 4.53592e-01 kg i

stone stone 6.35029 kg i

Quarter Quarter 1.27006e+01 kg

hundredweight US hundredweight US 4.53592e+01 kg i

Hundredweight UK Hundredweight UK

5.08023e+01 kg i

USton Uston 9.07185e+02 kg i

6


UKton Ukton 1.01605e+03 kg i

Molesunit name symbol SI equiv.

kilomole kmol 1e+03 mol

poundmole lbmole 4.53592e+02 mol

mol mol 1 mol i

milli mol mmol 1e-03 mol

Powerunit name symbol SI equiv.

joule per second J/s 1 J/s

watt W 1 J/s i

kilowatt kW 1e+03 J/s

megawatt MW 1e+06 J/s

kilojoule per hour kJ/hr 2.77778e-01 J/s

kilogram force meter per second kgf • m/s 9.80665 J/s

calorie per second cal/s 4.1868 J/s

calorie per hour cal/hr 1.163e-03 J/s

British thermal units per second BTU/s 1.05506e+03 J/s

British thermal units per hour BTU/hr 2.93072e-01 J/s

tons Ton (RT) 3.51687e+03 J/s i

metric horse power pk (Metric hp) 7.35499e+02 J/s i

horse power hp 7.457e+02 J/s i

electric horse power ehp 7.46e+02 J/s i

boiler horse power bhp 9.8095e+03 J/s i

pound force foot per second lbf • ft/s 1.35582 J/s i

Pressureunit name symbol SI equiv.

pascal Pa 1 Pa i

kilopascal kPa 1e+03 Pa

newton per square meter N/m2 1 Pa

dyne per square centimeter dyne/cm2 1e-01 Pa

bar Bar 1e+05 Pa i

7


millibar mBar 1e+02 Pa

kilogram force per square centimeter

kgf/cm2 9.80665e+04 Pa

atmosphere atm 1.01325e+05 Pa i

pound per square inch psi 6.89476e+03 Pa i

meter of water @ 4°C m H2O 4°C 9.80665e+03 Pa

centimeter of water @ 4°C cm H2O 4°C 9.80665e+01 Pa

foot of water @ 4°C ft H2O 4°C 2.98907e+03 Pa

inch of water @ 4°C inch H2O 4°C 2.49089e+02 Pa

millimeter of mecury @ 0°C mm Hg 0°C 1.33322e+02 Pa i

inch of mercury @ 0°C inch Hg 0°C 3.38639e+03 Pa

Specific heat [Mass]unit name symbol SI equiv.

joule per kilogram per kelvin J/(kg • K) 1 J/(kg • K)

kilojoule per kilogram per kelvin kJ/(kg • K) 1e+03 J/(kg • K)

calorie per gram per degree celcius cal/(g • °C) 4.1868e+03 J/(kg • K)

kilocalorie per gram per degree celcius

kcal/(g • °C) 4.1868 J/(kg • K)

British thermal unit per pound mass per degree farenheit

Btu/(lbm • °F) 4.1868e+03 J/(kg • K)

calorie per gram per kelvin cal/(g • K) 4.1868e+03 J/(kg • K)

Specific heat [Molar]unit name symbol SI equiv.

joule per kilomol per kelvin J/(kmol • K) 1 J/(kmol • K)

kilojoule per kilomol per kelvin kJ/(kmol • K) 1e+03 J/(kmol • K)

kilocalorie per kilomol per kelvin kcal/(kmol • K) 4.1868e+03J/(kmol • K)

calorie per kilomol per kelvin cal/(kmol • K) 4.1868e+03J/(kmol • K)

British thermal unit per poundmol per degree farenheit

Btu/(lbmol • °F) 4.1868e+03J/(kmol • K)

8

Thermal conductivityunit name symbol SI equiv.

British thermal unit per foot per second per degree farenheit

Btu/(ft • s • °F) 6.23065e+03 W/(m • K)

cal per second per meter per degree celcius

cal/(s • m • °C) 4.1868 W/(m • K)

kilocalorie per hour per meter per kelvin

kcal/(hr • m • K) 1.163 W/(m • K)

joule per second per degree celcius J/(s • m • °C) 1 W/(m • K)

kilojoue per hour per meter per kelvin

kJ/(hr • m • K) 2.77778e-01 W/(m • K)

megawatt per meter per kelvin MW/(m • K) 1e+06 W/(m • K)

kilowatt per meter per kelvin kW/(m • K) 1e+03 W/(m • K)

watt per meter per kelvin W/(m • K) 1 W/(m • K)

watt per centimeter per kelvin W/(cm • K) 1e-02 W/(m • K)

watt per foot per degree farenheit W/(ft • °F) 5.90551 W/(m • K)

watt per inch per degree farenheit W/(inch • °F) 1.41111e-02 W/(m • K)

Timeunit name symbol SI equiv.

second s 1 s

minute min 6e+01 s

hour hr 3.6e+03 s

day d 8.64e+04 s

9

e = exponent6 X 101 = 60

3.6 X 103 = 3600

2.90888 x 10 -4 = .000290888


year yr 3.1536e+07 s

Velocity [angular]unit name symbol SI equiv.

degrees per minute °/min 2.90888e-04 rad/s

degrees per second °/s 1.74533e-02 rad/s

radian per minute rad/minute 1.66667e-02 rad/s

radian per second rad/s 1 rad/s

revolutions per minute rpm 1.0472e-01 rad/s

revolutions per second rps 6.28319 rad/s

Velocity [linear]unit name symbol SI equiv.

centimeter per second cm/s 1e-02 m/s

meter per second m/s 1 m/s

kilometer per second km/s 1e+03 m/s

kilometer per hour km/hr 2.77778e-01 m/s

foot per second ft/s 3.048e-01 m/s

foot per hour ft/hr 8.46667e-05 m/s

inch per second inch/s 2.54e-02 m/s

knot knot 5.14444e-01 m/s

mile per hour mph 4.4704e-01 m/s

10


3.6 X 103 = 3600

2.90888 x 10 -4 = .000290888


3.6 X 103 = 3600

2.90888 x 10 -4 = .000290888


speed of light in vacuum (speed of light in vacuum) m/s

2.99792e+08 m/s i

Mach M 3.316e+02 m/s i

Viscosity [Dynamic]unit name symbol SI equiv.

pascal second Pa • s 1 Pa • s

millipascal second mPa • s 1e-03 Pa • s

centipoise cP 1e-03 Pa • s

kilogram force second per square meter

kgf • s/m2 9.80665 Pa • s

pound force second per square foot lbf • s/ft2 4.78803e+01 Pa • s

pounf mass per foot second lbm/(ft • s) 1.48816 Pa • s

kilogram per (meter second) kg/(m • s) 1 Pa • s

gram per (centimeter second) g/(cm • s) 1e-01 Pa • s

Poise P 1e-01 Pa • s i

Velocity [linear]unit name symbol SI equiv.

centimeter per second cm/s 1e-02 m/s

meter per second m/s 1 m/s

kilometer per second km/s 1e+03 m/s

kilometer per hour km/hr 2.77778e-01 m/s

foot per second ft/s 3.048e-01 m/s

foot per hour ft/hr 8.46667e-05 m/s

inch per second inch/s 2.54e-02 m/s

knot knot 5.14444e-01 m/s

mile per hour mph 4.4704e-01 m/s

speed of light in vacuum (speed of light in vacuum) m/s

2.99792e+08 m/s i

Mach M 3.316e+02 m/s i

Viscosity [Dynamic]unit name symbol SI equiv.

pascal second Pa • s 1 Pa • s

millipascal second mPa • s 1e-03 Pa • s

11


centipoise cP 1e-03 Pa • s

kilogram force second per square meter

kgf • s/m2 9.80665 Pa • s

pound force second per square foot lbf • s/ft2 4.78803e+01 Pa • s

pounf mass per foot second lbm/(ft • s) 1.48816 Pa • s

kilogram per (meter second) kg/(m • s) 1 Pa • s

gram per (centimeter second) g/(cm • s) 1e-01 Pa • s

Poise P 1e-01 Pa • s i

Viscosity [Kinematic]unit name symbol SI equiv.

centistokes cSt 1e-06 m2/s

square centimeter per second cm2/s 1e-04 m2/s

square foot per hour ft2/hr 2.58064e-05 m2/s

square foot per second ft2/s 9.2903e-02 m2/s

square meter per hour m2/h 2.77778e-04 m2/s

square meter per hour m2/s 1 m2/s

stokes St 1e-04 m2/s i

Volumeunit name symbol SI equiv.

milliliter ml 1e-06 m3 i

cubic centimeter cm3 1e-06 m3 i

liter l 1e-03 m3 i

cubic decimeter dm3 1e-03 m3

cubic meter m3 1 m3 i

cubic inch inch3 1.63871e-05 m3 i

cubic foot ft3 2.83168e-02 m3

cubic yard yard3 7.64555e-01 m3

US gallon US gal 3.78541e-03 m3

UK gallon UK gal 4.54609e-03 m3

barrel US petrol bbl US petrol 1.58987e-01 m3

UK pint UK pint 5.68262e-04 m3

12

Solar System Reference

Moon: Mass= 7.36 x 1022 kgMean radius= 1.74 x 106 m

Our Solar System

Body Order:Sun.Mercury.Venus.Earth.Mars.Jupiter.Saturn.Uranus.Neptune.Pluto

Sun: Mass= 1.99 x 1030 kgMean radius= 6.96 x 108 m

Mercury: Mass= 3.18 x 1023 kgMean radius= 2.43 x 106 m

Period= 7.60 x 106 sDistance from Sun= 5.79 x 1010 m

Venus: Mass= 4.88 x 1024 kgMean radius= 6.06 x 106 m


Earth: Mass= 5.98 x 1024 kgMean radius= 6.37 x 106 m


Mars: Mass= 6.42 x 1023 kgMean radius= 3.37 x 106 m


Jupiter: Mass= 1.90 x 1027 kgMean radius= 6.99 x 107 m

Period= 3.74 x 108 s

13

Distance from Sun= 7.78 x 1011 m

Saturn: Mass= 5.68 x 1026 kgMean radius= 5.85 x 107 m


Uranus: Mass= 8.68 x 1025 kgMean radius= 2.33 x 107 m


Neptune: Mass= 1.03 x 1026 kgMean radius= 2.21 x 107 m


Pluto: Mass= 1.4 x 1022 kgMean radius= 1.5 x 106 m


Other Unit Conversions

Length

Area

Volume1 in3 = 16.387 cm3

1 ft3 = 0.0283 m3

1 us f.oz = 29.574 ml1 imp f.oz = 28.41 ml1 us gal = 3.7854 l1 imp gal = 4.546 l

Weight1 OZ = 28.35 g1 lb = 0.4536 kg = 453.6 g1 imp ton = 1016 kg

TemperatureoF = oC*1.8 + 32oC = (oF - 32) / 1.8

1 in = 2.54 cm = 0.0254 m1 ft = 30.48 cm = 0.3048 m1 yard = 91.44 cm = 0.9144 m1 mile = 1.6093 Km = 1609.3 m

1 in2 = 6.4516 cm2

1 ft2 = 0.0929 m2

1 acre = 0.4047 hectares = 4047 m2

14

oR = oF + 459.67K = oC + 273.15

Time Conversion

COORDINATED UNIVERSAL TIME (UTC) = ZULU TIME CONVERSION CHART TO LOCAL TIME

LOCAL EDST EST CDST CST MDST MST PDST PSTMIDNIGHT 0400 0500 0500 0600 0600 0700 0700 0800

1 AM 0500 0600 0600 0700 0700 0800 0800 09002 AM 0600 0700 0700 0800 0800 0900 0900 10003 AM 0700 0800 0800 0900 0900 1000 1000 11004 AM 0800 0900 0900 1000 1000 1100 1100 12005 AM 0900 1000 1000 1100 1100 1200 1200 13006 AM 1000 1100 1100 1200 1200 1300 1300 14007 AM 1100 1200 1200 1300 1300 1400 1400 15008 AM 1200 1300 1300 1400 1400 1500 1500 16009 AM 1300 1400 1400 1500 1500 1600 1600 170010 AM 1400 1500 1500 1600 1600 1700 1700 180011 AM 1500 1600 1600 1700 1700 1800 1800 1900NOON 1600 1700 1700 1800 1800 1900 1900 20001 PM 1700 1800 1800 1900 1900 2000 2000 21002 PM 1800 1900 1900 2000 2000 2100 2100 22003 PM 1900 2000 2000 2100 2100 2200 2200 23004 PM 2000 2100 2100 2200 2200 2300 2300 24005 PM 2100 2200 2200 2300 2300 2400 2400 01006 PM 2200 2300 2300 2400 2400 0100 0100 02007 PM 2300 2400 2400 0100 0100 0200 0200 03008 PM 2400 0100 0100 0200 0200 0300 0300 04009 PM 0100 0200 0200 0300 0300 0400 0400 050010 PM 0200 0300 0300 0400 0400 0500 0500 060011 PM 0300 0400 0400 0500 0500 0600 0600 0700

LOCAL EDST EST CDST CST MDST MST PDST PST

LEGEND:EDST = EASTERN DAYLIGHT SAVING TIME

EST = EASTERN STANDARD TIMECDST = CENTRAL DAYLIGHT SAVING TIME

CST = CENTRAL STANDARD TIMEMDST = MOUNTAIN DAYLIGHT SAVING TIME

MST = MOUNTAIN STANDARD TIME

15

PDST = PACIFIC DAYLIGHT SAVING TIMEPST = PACIFIC STANDARD TIME

How Distances are Measured in Astronomy

Dealing with the numbers involved with the distances to the stars or even with those found in the solar system can be hard going. Astronomers make their lives easier by using a number of rulers (units of distance) for the distances and although they have some strange names they can be very useful for comparing the distances to stars, other galaxies and even the planets in our solar system.

AU (astronomical units)

One AU is the distance that the average distance that the Earth orbits the Sun at. The AUis most commonly used for the distances of objects with in our solar system. Pluto, the last planet in the solar system is found at an average distance of 39.47 au from the Sun. Sedna the new body nearly as large as a planet found beyond Pluto is never nearer to the Sun than 76AU and then goes to 880AU from the Sun in its giant elliptical orbit.

Light Years

One of the most common rulers is the light year. The light year is is the distance that light travel in one year (365 1/4 days). It is most commonly used for the distances to stars and other galaxies.

The nearest star is 4.2 light years away from our sun. We are 8.3 light minutes away form the Sun. the distance to the outer most planet Pluto is about 13 light hours.

Some other interesting distances in light years:

Object Distance in light yearsNearest Star (Proxima Centuri) 4.2Sirius the dog star (the brightest star in the sky) 8.6centre of the galaxy approximately 30 000Andromeda (one of our nearest neighbouring galaxies) approximately 2 million

16

The stars of Orion. (Betelgeuse and Rigel) 1400 light years

Parsec (pc)

Astronomers started measuring distances from the amount that a star moves as the Earth goes from one side of the Sun to the other. Try moving your head and you will see that the postion of everything around you changes. One parsec is derived from the smallest angle measurement of 1/3,600th of a degree or an arc second that is the angle that a star at this distance would appear to move in 6 months as the Earth journeys around the Sun. A parsec is 3.2616 light years or 30,857,000,000,000 km.. Two parsecs is 6.5532 light years or twice the distance, it is not a measure of change in angles of the stars. Due to the massive distance in the universe astronomers often use multiples of parsec commonly found are kiloparsec (kpc) a 1000 parsecs or a megaparsec (Mpc) 1,000,000 parsecs.

Below is a conversion table for some useful astronomical distance units

kilometres (km) Astronomical units (AU) Light Years (l.y.) Parsec (pc)

kilometres (km) 1 149.6

million9,460,000,000,000

30,857,000,000,000

Astronomical units (AU) 0.0000000067 1 63,240 206,263

Light Years (l.y.) 0.00000000000011 0.000016 1 3.2616

Parsec (pc) 0.000000000000033 0.0000048 0.3066 1

17

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