calculand - Permeability
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Annulus
Circle
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Event horizon
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Permeability
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Sphere
Spherical cap
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Tetrahedron
Tetrakis hexahedron
Thomson cross section
Torus
Trapezoid
Triangle
Geological permeability (Darcy\'s Law) -
K = Q ⋅ η ⋅ l / (A ⋅ Δp)
US bl./d - Barrel per day
cl/s - Centilitre per second
am³/s - Cubic attometre per second
cm³/s, ccm/s - Cubic centimetre per second
dam³/s - Cubic decametre per second
dm³/s - Cubic decimetre per second
Em³/s - Cubic exametre per second
fm³/s - Cubic femtometre per second
ft³/h, cu. ft./h - Cubic foot per hour
ft³/min, cu. ft./min - Cubic foot per minute
ft³/s, cu. ft./s - Cubic foot per second
Gm³/s - Cubic gigametre per second
hm³/s - Cubic hectometre per second
in³/h, cui/h - Cubic inch per hour
in³/min, cui/min - Cubic inch per minute
in³/s, cui/s - Cubic inch per second
km³/s - Cubic kilometre per second
Mm³/s - Cubic megametre per second
m³/d - Cubic metre per day
m³/h - Cubic metre per hour
m³/min - Cubic metre per minute
m³/s - Cubic metre per second
m³/y, m³/a - Cubic metre per year
µm³/s - Cubic micrometre per second
mi³/s, cu. mi./s - Cubic mile per second
mm³/s - Cubic millimetre per second
nm³/s - Cubic nanometre per second
Pm³/s - Cubic petametre per second
pm³/s - Cubic picometre per second
Tm³/s - Cubic terametre per second
yd³/s, cu. yd./s - Cubic yard per second
ym³/s - Cubic yoctometre per second
Ym³/s - Cubic yottametre per second
zm³/s - Cubic zeptometre per second
Zm³/s - Cubic zettametre per second
ų/s - Cubic ångstrøm per second
US liq. gal./s - Gallon (US) per second
imp. gal./s - Gallon (imp.) per second
hl/d - Hectolitre per day
hl/h - Hectolitre per hour
hl/min - Hectolitre per minute
hl/s - Hectolitre per second
hl/y, hl/a - Hectolitre per year
kl/s - Kilolitre per second
l/d - Litre per day
l/h - Litre per hour
l/min - Litre per minute
l/s - Litre per second
l/y, l/a - Litre per year
µl/h - Microlitre per hour
µl/min - Microlitre per minute
µl/s - Microlitre per second
ml/d - Millilitre per day
ml/h - Millilitre per hour
ml/min - Millilitre per minute
ml/s - Millilitre per second
ml/y, ml/a - Millilitre per year
Sv - Sverdrup
aNs/m² - Attonewton second per square metre
aPas - Attopascal second
cNs/m² - Centinewton second per square metre
cPas - Centipascal second
cP - Centipoise
D/barrer - Darcy per barrer
daNs/m² - Decanewton second per square metre
daPas - Decapascal second
daP - Decapoise
dNs/m² - Decinewton second per square metre
dPas - Decipascal second
dP - Decipoise
°E, E° - Degree Engler
dyns/cm² - Dyne second per square centimetre
dyns/dm² - Dyne second per square decimetre
dyns/m² - Dyne second per square metre
dyns/mm² - Dyne second per square millimetre
ENs/m² - Exanewton second per square metre
EPas - Exapascal second
fNs/m² - Femtonewton second per square metre
fPas - Femtopascal second
GNs/m² - Giganewton second per square metre
GPas - Gigapascal second
g/cm s - Gram per centimetre second
g/m s - Gram per metre second
hNs/m² - Hectonewton second per square metre
hPas - Hectopascal second
hP - Hectopoise
Js/m³ - Joule second per cubic metre
kg/cm s - Kilogram per centimetre second
kg/m s - Kilogram per metre second
kNs/m² - Kilonewton second per square metre
kPas - Kilopascal second
kP - Kilopoise
L - Langmuir
°M, °McM - MacMichael, Degree MacMichael
MNs/m² - Meganewton second per square metre
MPas - Megapascal second
µNs/m² - Micronewton second per square metre
µPas - Micropascal second
mNs/m² - Millinewton second per square metre
mPas - Millipascal second
mP - Millipoise
nNs/m² - Nanonewton second per square metre
nPas - Nanopascal second
N/St - Newton per stokes
Ns/cm² - Newton second per square centimetre
Ns/dm² - Newton second per square decimetre
Ns/ft² - Newton second per square foot
Ns/in² - Newton second per square inch
Ns/m² - Newton second per square metre
Ns/µm² - Newton second per square micrometre
Ns/mm² - Newton second per square millimetre
Pa h - Pascal hour
Pa min - Pascal minute
Pas - Pascal second
PNs/m² - Petanewton second per square metre
PPas - Petapascal second
pNs/m² - Piconewton second per square metre
pPas - Picopascal second
P - Poise
Pl - Poiseuille
lb/ft s - Pound per foot second
lb/in s - Pound per inch second
lb/m s - Pound per metre second
lb/yd s - Pound per yard second
lb(f)sec/in² - Psi-second
Reyn - Reyn
1/rhe - Rhe reciprocal
slug/in s - Slug per inch second
slug/m s - Slug per metre second
TNs/m² - Teranewton second per square metre
TPas - Terapascal second
Torrs - Torr second
yNs/m² - Yoctonewton second per square metre
yPas - Yoctopascal second
YNs/m² - Yottanewton second per square metre
YPas - Yottapascal second
zNs/m² - Zeptonewton second per square metre
zPas - Zeptopascal second
ZNs/m² - Zettanewton second per square metre
ZPas - Zettapascal second
r α tauri - Aldebaran radius
r α cen A - Alpha Centauri A radius
r α cen B - Alpha Centauri B radius
arshin - Arshin (арши́н)
AU, UA - Astronomical unit
am - Attometre
M - Basic module
r α ori - Betelgeuse radius
aₒ - Bohr radius
bu - Bu (分, japan.)
bu - Bu (步, chin.)
cbl. - Cable
cal. - Calibre
cm - Centimetre
r ⚳ - Ceres radius
ch. - Chain
CH, Fr. - Charrière (French)
chi - Chi (市尺)
cho - Chō (町)
cubitus - Cubitus, Roman cubit
cun - Cun (市寸)
dam - Decametre
dm - Decimetre
gradus - Degreeus, Roman step
digitus - Digitus, Roman finger
diuim - Diuim (дюйм)
r ⊕, r ♁ - Earth radius
rₑ - Electron radius
Em - Exametre
ftm - Fathom (nautical)
fm - Femtometre (Fermi)
fen - Fen (市分)
ft - Foot
fur - Furlong
fut - Fut (фут)
Gly - Gigalightyear
Gm - Gigametre
Gpc - Gigaparsec
hank cotton - Hank cotton
hao - Hao (毫)
hm - Hectometre
himetric - Himetric
hu - Hu (忽)
in - Inch
r ♃ - Jupiter radius
jo - Jō (丈)
ken - Ken (間)
kly - Kilolightyear
km - Kilometre
kpc - Kiloparsec
lea cotton - Lea cotton
lea hemp - Lea hemp
lea., l. - League
li, 10 hao - Li (市厘)
li - Li (市里, 15 yin)
Ld - Lightday
Lh - Lighthour
Lm - Lightminute
Ls - Lightsecond
ly - Lightyear
ln. - Line
liniya - Liniya (линия)
li. - Link
r ♂ - Mars radius
Mly - Megalightyear
Mm - Megametre
Mpc - Megaparsec
r ☿ - Mercury radius
m - Metre
3 M - Metric foot (basic module)
¼ M - Metric inch (basic module)
mickey - Mickey
µm - Micrometre (Micron)
mi - Mile
milia - Milia (ми́ля)
mil, thou - Milli-inch (Millesimus, Thousands of an inch)
milliarium - Milliarium, Roman mile
mm - Millimetre
r ☾ - Moon radius
mam - Myriametre
mo - Mō (毫)
nm - Nanometre
nm, sm - Nautical mile (Seamile)
r ♆ - Neptune radius
palmus - Palmus, Roman palm
pc - Parsec (Parallax second)
passus - Passus, Roman double step
pes - Pes, Roman foot
Pm - Petametre
piad - Piad (пядь)
pc. - Pica
pm - Picometre
l(P) - Planck length
r ♇ - Pluto radius
p - Point
ri - Ri (里)
rin - Rin (厘)
rd. - Rod (Perch)
sashen - Sashen (сажень)
r ♄ - Saturn radius
l(S) - Schrödinger length
sh. - Shackle
shaku - Shaku (尺)
si - Si (丝)
SU - Siegbahn unit
skein cotton - Skein cotton
r ☉ - Solar radius
spindle scotch - Spindle Scotch
spindle cotton - Spindle cotton
spindle hemp - Spindle hemp
stadium - Stadium, Roman stadium
p.p. - Stitch
l(St) - Stoney length
stopa - Stopa (стопа)
strehn cotton - Strehn cotton
sun - Sun (寸)
tchetvert - Tchetvert (четверть)
Tly - Teralightyear
Tm - Terametre
Tpc - Teraparsec
thread cotton - Thread cotton
thread hemp - Thread hemp
totchka - Totchka (то́чка)
twip - Twip
r ⛢ - Uranus radius
r ♀ - Venus radius
vershok - Vershok (вершок)
verst - Verst (верста́)
XU - X-unit
yd - Yard
yin - Yin (引)
ym - Yoctometre
Ym - Yottametre
zm - Zeptometre
Zm - Zettametre
zhang - Zhang (市丈)
Å - Ångstrøm
ac - Acre
a - Are
b - Barn
barony - Barony
cho - Chō (町)
circ. in. - Circular inch
circ. mil. - Circular mil (Circular thou)
Dez. - Dezimal (bavarian)
fb - Femtobarn
fen - Fen (市分)
go - Gō (合)
ha - Hectare
jo - Jō (畳)
kb - Kilobarn
li - Li (市厘)
µb - Microbarn
mb - Millibarn
Mg - Morgen (metric)
mu - Mu (市亩 / 畝)
nb - Nanobarn
outhouse - Outhouse
pb - Picobarn
A(P), l²(P) - Planck area
qing - Qing (市顷)
vha - Quarter hectare (Viertelhektar)
se - Se (畝)
shaku - Shaku (勺)
shed - Shed
shi - Shí (市石)
am² - Square attometre
cm² - Square centimetre
dam² - Square decametre
dm² - Square decimetre
Em² - Square exametre
fm² - Square femtometre
ft², sq. ft. - Square foot
Gm² - Square gigametre
Gpc² - Square gigaparsec
hm² - Square hectometre
in², sq. in. - Square inch
km² - Square kilometre
kpc² - Square kiloparsec
Ld² - Square lightday
Lh² - Square lighthour
Lm² - Square lightminute
Ls² - Square lightsecond
ly² - Square lightyear
Mm² - Square megametre
Mpc² - Square megaparsec
m² - Square metre
µm² - Square micrometre
mi², sq. mi. - Square mile
mil², thou² - Square milli-inch (Square mil, Square thou)
mm² - Square millimetre
mam² - Square myriametre
nm² - Square nanometre
pc² - Square parsec
Pm² - Square petametre
pm² - Square picometre
Tm² - Square terametre
Tpc² - Square teraparsec
yd², sq. yd. - Square yard
ym² - Square yoctometre
Ym² - Square yottametre
zm² - Square zeptometre
Zm² - Square zettametre
Ų - Square ångstrøm
tan - Tan (段 / 反)
σₜ - Thomson cross section
tsubo - Tsubo (坪 / 歩)
TIE - Two inch equivalent
aN/m² - Attonewton per square metre
aPa - Attopascal
bar - Bar
Ba, b - Barye
cmHg - Centimetre of mercury
cmH₂O - Centimetre of water
cN/m² - Centinewton per square metre
cPa - Centipascal
daN/m² - Decanewton per square metre
daPa - Decapascal
dN/m² - Decinewton per square metre
dPa - Decipascal
°M/s, °McM/s - Degree MacMichael per second
dyn/cm² - Dyne per square centimetre
dyn/m² - Dyne per square metre
EN/m² - Exanewton per square metre
EPa - Exapascal
fN/m² - Femtonewton per square metre
fPa - Femtopascal
GN/m² - Giganewton per square metre
GPa - Gigapascal
g/cm s² - Gram per centimetre second squared
hN/m² - Hectonewton per square metre
hPa - Hectopascal
inHg - Inch of mercury
inH₂O - Inch of water
J/m³ - Joule per cubic metre
kg/m s² - Kilogram per metre second squared
kN/m² - Kilonewton per square metre
kPa - Kilopascal
kp/cm² - Kilopond per square centimetre
kp/dm² - Kilopond per square decimetre
kp/m² - Kilopond per square metre
kp/mm² - Kilopond per square millimetre
L/h - Langmuir per hour
L/s - Langmuir per second
MN/m² - Meganewton per square metre
MPa - Megapascal
mHg - Metre of mercury
mH₂O - Metre of water
µmHg - Micrometre of mercury
micron, µmHg - Micron
µN/m² - Micronewton per square metre
µPa - Micropascal
mbar - Millibar
mmHg - Millimetre of mercury
mmH₂O - Millimetre of water
mN/m² - Millinewton per square metre
mPa - Millipascal
mTorr - Millitorr
nN/m² - Nanonewton per square metre
nPa - Nanopascal
N/D - Newton per darcy
N/ha - Newton per hectare
N/cm² - Newton per square centimetre
N/dm² - Newton per square decimetre
N/ft² - Newton per square foot
N/in² - Newton per square inch
N/km² - Newton per square kilometre
N/m² - Newton per square metre
N/mm² - Newton per square millimetre
Pa - Pascal
PN/m² - Petanewton per square metre
PPa - Petapascal
pN/m² - Piconewton per square metre
pPa - Picopascal
pz - Pièze
p(P) - Planck pressure
P/s - Poise per second
Pl/s - Poiseuille per second
p/m² - Pond per square metre
lb/ft s² - Pound per foot second squared
lb/in s² - Pound per inch second squared
lb/m s² - Pound per metre second squared
psf, lbf/ft², lbf/sq. ft. - Pound per square foot (Pound-force per square foot)
psi, lbf/in², lbf/sq. in. - Pound-force per square inch (Pound per square inch)
lbf/m² - Pound-force per square metre
pdl/ft², pdl/sq. ft. - Poundal per square foot
pdl/in², pdl/sq. in. - Poundal per square inch
pdl/m² - Poundal per square metre
Reyn/s - Reyn per second
atm - Standard atmosphere
at - Technical atmosphere
TN/m² - Teranewton per square metre
TPa - Terapascal
Torr - Torr
yN/m² - Yoctonewton per square metre
yPa - Yoctopascal
YN/m² - Yottanewton per square metre
YPa - Yottapascal
zN/m² - Zeptonewton per square metre
zPa - Zeptopascal
ZN/m² - Zettanewton per square metre
ZPa - Zettapascal
ac - Acre
a - Are
b - Barn
barony - Barony
cho - Chō (町)
circ. in. - Circular inch
circ. mil. - Circular mil (Circular thou)
Dez. - Dezimal (bavarian)
fb - Femtobarn
fen - Fen (市分)
go - Gō (合)
ha - Hectare
jo - Jō (畳)
kb - Kilobarn
li - Li (市厘)
µb - Microbarn
mb - Millibarn
Mg - Morgen (metric)
mu - Mu (市亩 / 畝)
nb - Nanobarn
outhouse - Outhouse
pb - Picobarn
A(P), l²(P) - Planck area
qing - Qing (市顷)
vha - Quarter hectare (Viertelhektar)
se - Se (畝)
shaku - Shaku (勺)
shed - Shed
shi - Shí (市石)
am² - Square attometre
cm² - Square centimetre
dam² - Square decametre
dm² - Square decimetre
Em² - Square exametre
fm² - Square femtometre
ft², sq. ft. - Square foot
Gm² - Square gigametre
Gpc² - Square gigaparsec
hm² - Square hectometre
in², sq. in. - Square inch
km² - Square kilometre
kpc² - Square kiloparsec
Ld² - Square lightday
Lh² - Square lighthour
Lm² - Square lightminute
Ls² - Square lightsecond
ly² - Square lightyear
Mm² - Square megametre
Mpc² - Square megaparsec
m² - Square metre
µm² - Square micrometre
mi², sq. mi. - Square mile
mil², thou² - Square milli-inch (Square mil, Square thou)
mm² - Square millimetre
mam² - Square myriametre
nm² - Square nanometre
pc² - Square parsec
Pm² - Square petametre
pm² - Square picometre
Tm² - Square terametre
Tpc² - Square teraparsec
yd², sq. yd. - Square yard
ym² - Square yoctometre
Ym² - Square yottametre
zm² - Square zeptometre
Zm² - Square zettametre
Ų - Square ångstrøm
tan - Tan (段 / 反)
σₜ - Thomson cross section
tsubo - Tsubo (坪 / 歩)
TIE - Two inch equivalent
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© 2010 - 2025 Norbert Schneider