engineering units converter (version 1)
DESCRIPTION
Engineering Units ConverterTRANSCRIPT
OverviewThis spreadsheet provides conversions for commonly used engineering units.The data table and lookup formulae are the same as used in all my engineering spreadsheet tools
LiabilityNo warrantees are made with respect to the accuracy or applicability of the calculations in this spreadsheet.The onous is on the user to verfiy that any results obtained are correct and appropriate for the work being carrying out.
CopyrightThis spreadsheet is the intellectual property of the author, Andrew Hooks.You are free to use it and distribute it however, you may not make it available for download from any websitewithout prior written consent and you must not remove or obscure any notices regarding authorship. (Basicallydon't steal or take credit for my work). Thanks.
Contactemail:for other tools visit:
ENGINEERING UNITS CONVERTOR - READ ME
The data table and lookup formulae are the same as used in all my engineering spreadsheet tools
No warrantees are made with respect to the accuracy or applicability of the calculations in this spreadsheet.The onous is on the user to verfiy that any results obtained are correct and appropriate for the work being carrying out.
You are free to use it and distribute it however, you may not make it available for download from any websitewithout prior written consent and you must not remove or obscure any notices regarding authorship. (Basically
UNIT CONVERSION
Input 37.8 am3/s 37.8 am3/sOutput 3.27 Mm3/d 3.26592 Mm3/d
Unit Type Input unit
Output unit
SelectionSelected Type ID 32Selected Type Lookup Ref unitVolRateActTwo param equation? 0
Input unit ID 1Input unit ID (min applied) 1
Output unit ID 3Output unit ID (min applied) 3
Long NamLookup NameAcceleratiounitAccelerationArea - larg unitAreaLargeArea - smalunitAreaSmallCGR unitCGRDensity unitDensityEnergy unitEnergyEnergy rat unitEnergyRateForce unitForceGLR unitGLRGOR unitGORHeat capacunitHeatCapacityHeating va unitHeatingValMassHeating va unitHeatingValVolHeat transfunitHeatTransfCoeffLength unitLengthLGR unitLGRMass unitMassMass rate unitMassRatePower unitPowerPressure unitPressurePressure deunitPressureDeltaSpecific heunitSpecHeatCapSurface te unitSurfTension
Temperatu unitTemperatureThermal conunitThermalConductivityTime - larg unitTimeLargeTime - smalunitTimeSmallVelocity unitVelocityViscosity - unitViscosityDynViscosity - unitViscosityKinVolume rat unitVolRateVolume rateunitVolRateActVolume rateunitVolRateLiqVolume unitVolume
CONSTANTS & UNIT LOOKUP TABLES
DETAILSAndrew Hooks11/15/2007Version 1
PREFIXESMetricPrefix long form valuem milli 0.001c centi 0.01k thousand 1000M million/mega 1E+06B billion 1E+09T tera 1E+12P peta 1E+15
ImperialPrefix long form valueM thousand 1000MM million 1E+06
BASIC CONSTANTS
Gas constant, R 8.31451
Grav. accel. 9.80665
MW (air) 28.964 kg/kmol
Standard T, P 2Std Pressure 101.325 kPaStd Temperature 288.15 K
Molar Volume 23.645
Common definitions for Standard T, P
Temp Abs Pres Molar Vol
K kPa
273.15 101.325 22.414
288.15 101.325 23.645
288.71 101.325 23.691
273.15 100 22.711
288.15 100 23.958
288.71 101.560 23.636
UNITSExample
www.firstprincipleseng.net
kPa.m3/(kmol.K)
m/s2
m3/kgmol
m3/kgmol
0oC, 1atm (273.15K = 0'C
15oC, 1atm (288.15K = 15'C
60oF, 1atm (288.71K = 60'F
0oC, 100kPa
15oC, 100kPa
60oF, 14.73psia (100.232kPa =
Click the unit cell then select required unit from the dropdown listthat appears
Length 10 in0.254 m0.000 mile
Temperature 15 'C288.15 K
15 'C
LengthBase conversionsinches/foot 12 in/ftfeet/metre 3.281 ft/mfeet/mile 5280 ft/mi
Lookup tableUnit SI unitmm = 0.001 mcm = 0.01 mm = 1 mkm = 1000 min = 0.0254 mft = 0.3048 mmile = 1609.3 m
Area_smallLookup tableUnit SI unit
= 0.000001
= 0.000645
= 1
= 0.0929
Area_largeBase conversionshectare/km2 100 hct/km2 1 hectare is 100m x 100mft2/acre 43559.66 ft2/acre
Lookup tableUnit Metric Unit
= 1
= 0.6214
hectare = 0.01
acre = 0.0040468
VolumeBase conversions
mm2 m2
in2 m2
m2 m2
ft2 m2
km2 km2
mi2 km2
km2
km2
barrels/cubic meter 6.283
231Litres/Imperial(UK) gallon 4.54609 L/gallon(UK)
Lookup tableUnit SI unit
mL = 0.000001
= 0.000001
L = 0.001
= 1
= 1.639E-05
= 0.0283 (35.31 ft3/m3)
bbl = 0.1592
gallon (US) = 0.00379 (264.2 gallon/m3)
gallon (UK) = 0.00455 (220 gallon/m3)
MassBase conversionspounds/kilogram 2.20462 lbl/kgpound/ton (short) 2000 lbl/tnpound/ton (long) 2240 lbl/ton
Lookup tableUnit SI unitmg = 0.000001 kgg = 0.001 kgkg = 1 kgtonne (metric) = 1000 kglbl = 0.454 kgton (short) = 907.2 kgton (long) = 1016.0 kg
ForceBase conversionsForce = mass * accelerationDyn 1.00E-05 N
Lookup tableUnit SI unitN = 1 NmN = 0.001 Nkg(f) = 9.80665 N 1kg * gravitational accelerationlbl(f) = 4.44823 NDyn = 0.00001 N
PressureBase conversionsPressure is force per unit area
bbl/m3
in3/US gallon in3/gallon
m3
cm3 m3
m3
m3 m3
in3 m3
ft3 m3
m3
m3
m3
Pa = N/m2 = kg.(m/s2)/m2 = kg/(m.s2)
kPa/Atmosphere 101.325 kPa(A)/atm(A) Atmospheric pressure at sealevel in kPakPa/bar 100 kPa/barbara/Atmosphere 1.01325 bara/atm The atmospheric pressure in bar at sealevel is 1.01325 barbarg/Atmosphere 0 barg/atmpsia/Atmosphere 14.696 psia/atm(A) The atmospheric pressure in psi at sealevel is 14.696 psipsi/bar 14.504 psi/bar
Lookup table!!! Order is important - multiply first then add the constant !!!
Unit Multiplier Constant SI unitPa(A) 0.001 0 kPa(A)kPa(A) 1 0 kPa(A)kPa(G) 1 101.325 kPa(A)MPa(A) 1000 0 kPa(A)MPa(G) 1000 101.325 kPa(A)bara 100 0 kPa(A)barg 100 101.325 kPa(A)psia 6.895 0 kPa(A)psig 6.895 101.325 kPa(A)atm(A) 101.325 0 kPa(A)atm(G) 101.325 101.325 kPa(A)
98.0665 0 kPa(A)
Pressure differenceLookup tableUnit SI unitPa = 0.001 kPakPa = 1 kPambar = 0.100 kPabar = 100 kPapsi = 14.504 kPaatm = 101.325 kPa
= 98.0665 kPamH2O = 9.80665 kPa
TemperatureBase conversions
Constant
Deg Celcius / Kelvin 273.15Fahrenheit 459.67 RankineRankine/Kelvin 1.8 0 R/K
Lookup table!!! Order is important - multiply first then add the constant !!!
Unit Multiplier Constant SI unit'C 1 273.15 KK 1 0 K'F 0.556 255 KR 0.556 0 K
kg/cm2(A) [kg/cm2 * (100cm/m)
kg/cm2
oC/K
X barg = X barg + atm P = Y bara; eg. 1barg + 1.013 = 2.013bara1 bar = 100kPa --> X barg = [100*(X barg + 1.013bar/atm)] kPa(A), or = [100*X + 101.325] kPa(A)X bara = (X - 1.013)barg * 100kPa/bar + 101.3kPa/atm = X*100kPa(A)
Converting to psia first would give the same result, ie.the following are equivalent:[X psig + (14.5*1.013=14.7)] psia * (1kPa / 14.5psi) = kPa(A)orX psig * (100/14.5=6.895) kPa(G) + 101.3 kPa/atm = kPa(A)
Time_smallLookup tableUnit SI unitms = 0.001 ss = 1 smin = 60 shour = 3600 sday = 86400 s
Time_largeLookup tableUnit "SI Unit"hour = 0.0417 dayday = 1 daymonth = 30.4 dayyear = 365.25 day
Volume rate - Gas (standard conditions)Lookup tableSelect standard T, P from the in-cell drop down list
Unit Std T, P Multiplier "SI Unit"
15oC, 1atm 1
0oC, 100kPa 0.000267
15oC, 1atm 11.574
Mscf/d 60oF, 1atm 0.000328
MMscf/d 60oF, 1atm 0.328
Bscf/y 60oF, 1atm 0.900
kgmol/h 0.00657
lbmol/h 0.00298
Volume rate - Gas (actual conditions)Lookup tableUnit "SI Unit"
= 1
= 0.000278
= 11.574
Mcf/d = 0.000328
MMcf/d = 0.328
Volume rate - LiquidLookup tableUnit "SI Unit"
L/s = 1000
L/min = 16.67
L/h = 0.278
L/d = 0.01157
= 1
sm3/s sm3/s
Nm3/h sm3/s
Mm3/d sm3/s
sm3/s
sm3/s
sm3/s
sm3/s
sm3/s
am3/s am3/s
am3/h am3/s
Mm3/d am3/s
am3/s
am3/s
m3/s
m3/s
m3/s
m3/s
m3/s m3/s
= 0.002738
= 1.15741E-05
bbl/d = 1.842E-06
k.bbl/d = 0.001842125
gph (US) = 1.0515E-06 gallons/hour
gpd (US) = 4.38126E-08
gph (UK) = 1.2628E-06
gpd (UK) = 5.26168E-08
Liquid - Gas RatioLookup tableUnit "SI unit"
= 1
bbl/MMscf = 5.6207
Gas - Liquid RatioLookup tableUnit "SI unit"
= 1
scf/bbl = 0.178
Mass rateLookup tableUnit SI unitkg/s = 1 kg/skg/h = 0.000278 kg/st/d = 0.011574 kg/st/y = 3.17E-05 kg/slbl/s = 0.454 kg/slbl/h = 5.25E-06 kg/s
VelocityLookup tableUnit SI unitm/s = 1 m/skm/h = 0.278 m/sft/s = 0.3048 m/smi/h = 0.4470 m/s
AccelerationLookup tableUnit SI unit
= 0.001
= 1
= 1000
= 0.025
= 0.305
m3/h m3/s
m3/d m3/s
m3/s
m3/s
m3/s
m3/s
m3/s
m3/s
m3/Mm3 m3/Mm3
m3/Mm3
m3/m3 m3/m3
m3/m3
mm/s2 m/s2
m/s2 m/s2
km/s2 m/s2
in/s2 m/s2
ft/s2 m/s2
mi/(h.s) = 0.447
= 1609
DensityLookup tableUnit SI unit
= 1.00E-09
= 1
= 16.018
EnergyBase conversions
1Joules/Calorie 4.1868 J/CalJoules/BTU 1055.056 J/BTU
Lookup tableUnit SI unitJ = 0.001 kJkJ = 1 kJCal = 0.0041868 kJkCal = 4.1868 kJBTU = 1.055056 kJ
Energy rateLookup tableUnit "SI unit"TJ/d = 1 TJ/dPJ/y = 1000 TJ/d
PowerBase conversions(BTU/h) / kW 3412.1 (BTU/h)/kW
Lookup tableUnit SI unitW = 0.001 kWkW = 1 kWMW = 1000 kWHp = 0.746 kWBTU/h = 0.00029 kW
Heating value (volume basis)Lookup tableUnit "SI unit"
= 1
MJ/kgmol = 0.042292
MJ/scf = 35.315
m/s2
mi/s2 m/s2
g/cm3 kg/m3
kg/m3 kg/m3
lbl/ft3 kg/m3
Joules/(kgm2/s2) J/(kgm2/s2)
MJ/m3 MJ/m3
MJ/m3
MJ/m3
= 0.001055
BTU/scf = 0.037259
BTU/lbmol = 0.000098
kcal/lbmol = 0.000390
Heating value (mass basis)Lookup tableUnit "SI unit"MJ/kg = 1 MJ/kgBTU/kg = 0.00106 MJ/kgBTU/lb = 0.00233 MJ/kgkcal/lb = 0.00923 MJ/kgkcal/kg = 0.00419 MJ/kg
Heat capacityLookup tableUnit "SI unit"J/K = 1 J/KBTU/'F = 1899 J/Kcal/'C = 4.187 J/K
Specific heat capacityLookup tableUnit "SI unit"J/(kg.K) = 1 J/(kg.K)J/(g.K) = 1000 J/(kg.K)BTU/(lb'F) = 4187 J/(kg.K)cal/(g'C) = 4187 J/(kg.K)
Thermal conductivityLookup tableUnit "SI unit"W/(m.K) = 1 W/(m.K)BTU/(h.ft'F) = 1.731 W/(m.K)
= 0.144 W/(m.K)cal/(sm'C) = 4.187 W/(m.K)
Heat transfer coefficientLookup tableUnit "SI unit"
= 1
= 5.678
= 4.19E-04
= 1.163
Dynamic (Absolute) ViscosityBase conversions
BTU/m3 MJ/m3
MJ/m3
MJ/m3
MJ/m3
BTU.in/(h.ft2'F)
W/(m2K) W/(m2K)
BTU/(h.ft2'F) W/(m2K)
cal/(s.cm2K) W/(m2K)
kcal/(h.m2K) W/(m2K)
Pa.s = 1 kg/m/sPoise = 1 g/cm/s (Water has viscosity of ca. 1cP at 20'C (1.002))
Lookup tableUnit "SI unit"cP = 0.001 Pa.sPoise = 0.1 Pa.sPa.s = 1 Pa.s
Kinematic Viscosity Kinematic viscosity = Dynamic viscosity / Density for a Newtonian fluidBase conversions
Stoke = 1
Lookup tableUnit "SI unit"
= 1
St = 0.0001
cSt = 0.000001
Surface tensionLookup tableUnit "SI unit"T = 1 N/mN/m = 1 N/mmN/m = 0.001 N/mlbl(f)/in = 175.13 N/mdyn/cm = 0.001 N/m
cm2/s
m2/s m2/s
m2/s
m2/s
(273.15K = 0'C = 32'F; 101.325kPa = 1atm = 14.696psia)
(288.15K = 15'C = 59'F)
(288.71K = 60'F = 15.56'C)
(100.232kPa = 14.73psia)
1 hectare is 100m x 100m
(264.2 gallon/m3)
(220 gallon/m3)
1kg * gravitational acceleration
Atmospheric pressure at sealevel in kPa
The atmospheric pressure in bar at sealevel is 1.01325 bar
The atmospheric pressure in psi at sealevel is 14.696 psi
[kg/cm2 * (100cm/m)2] * (grav accel) = N/m2 = kg * (grav accel) /m2
X barg = X barg + atm P = Y bara; eg. 1barg + 1.013 = 2.013bara1 bar = 100kPa --> X barg = [100*(X barg + 1.013bar/atm)] kPa(A), or = [100*X + 101.325] kPa(A)X bara = (X - 1.013)barg * 100kPa/bar + 101.3kPa/atm = X*100kPa(A)
Converting to psia first would give the same result, ie.the following are equivalent:[X psig + (14.5*1.013=14.7)] psia * (1kPa / 14.5psi) = kPa(A)orX psig * (100/14.5=6.895) kPa(G) + 101.3 kPa/atm = kPa(A)
(Water has viscosity of ca. 1cP at 20'C (1.002))
Kinematic viscosity = Dynamic viscosity / Density for a Newtonian fluid