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Prefix
| E |
(exa) |
1e+18
|
| G |
(giga) |
1000000000
|
| M |
(mega) |
1000000
|
| P |
(peta) |
1e+15
|
| T |
(tera) |
1e+12
|
| Y |
(yotta) |
1e+24
|
| Z |
(zetta) |
1e+21
|
| a |
(atto) |
1e-18
|
| c |
(centi) |
0.01
|
| d |
(deci) |
0.1
|
| da |
(deka) |
10
|
| f |
(femto) |
1e-15
|
| h |
(hecto) |
100
|
| k |
(kilo) |
1000
|
| m |
(milli) |
0.001
|
| n |
(nano) |
1e-09
|
| p |
(pico) |
1e-12
|
| u |
(micro) |
1e-06
|
| y |
(yocto) |
1e-24
|
| z |
(zepto) |
1e-21
|
SI
| $ |
(currency) |
1 _
|
| % |
(percent) |
0.01
|
| %% |
(permille) |
0.001
|
| A |
(ampere) |
1 A
|
| AE |
(astronomical unit) |
149597870659 m
|
| AU |
(astronomical unit) |
149597870659 m
|
| Bq |
(becquerel) |
1 s-1
|
| C |
(coulomb) |
1 s.A
|
| F |
(farad) |
1 m-2.kg-1.s4.A2
|
| Gy |
(gray) |
1 m2.s-2
|
| H |
(henry) |
1 m2.kg.s-2.A-2
|
| Hz |
(hertz) |
1 s-1
|
| J |
(joule) |
1 m2.kg.s-2
|
| Jy |
(jansky) |
1e-26 kg.s-2
|
| K |
(kelvin) |
1 K
|
| L |
(litre) |
0.001 m3
|
| M0 |
(solar mass) |
1.98891944407e+30 kg
|
| N |
(newton) |
1 m.kg.s-2
|
| Ohm |
(ohm) |
1 m2.kg.s-3.A-2
|
| Pa |
(pascal) |
1 m-1.kg.s-2
|
| S |
(siemens) |
1 m-2.kg-1.s3.A2
|
| S0 |
(solar mass) |
1.98891944407e+30 kg
|
| Sv |
(sievert) |
1 m2.s-2
|
| T |
(tesla) |
1 kg.s-2.A-1
|
| UA |
(astronomical unit) |
149597870659 m
|
| V |
(volt) |
1 m2.kg.s-3.A-1
|
| W |
(watt) |
1 m2.kg.s-3
|
| Wb |
(weber) |
1 m2.kg.s-2.A-1
|
| _ |
(undimensioned) |
1 _
|
| a |
(year) |
31557600 s
|
| arcmin |
(arcmin) |
0.000290888208666 rad
|
| arcsec |
(arcsec) |
4.8481368111e-06 rad
|
| as |
(arcsec) |
4.8481368111e-06 rad
|
| cd |
(candela) |
1 cd
|
| cy |
(century) |
3155760000 s
|
| d |
(day) |
86400 s
|
| deg |
(degree) |
0.0174532925199 rad
|
| g |
(gram) |
0.001 kg
|
| h |
(hour) |
3600 s
|
| l |
(litre) |
0.001 m3
|
| lm |
(lumen) |
1 cd.sr
|
| lx |
(lux) |
1 m-2.cd.sr
|
| m |
(metre) |
1 m
|
| min |
(minute) |
60 s
|
| mol |
(mole) |
1 mol
|
| pc |
(parsec) |
3.08567758065e+16 m
|
| rad |
(radian) |
1 rad
|
| s |
(second) |
1 s
|
| sr |
(steradian) |
1 sr
|
| t |
(tonne) |
1000 kg
|
Custom
| " |
(arcsec) |
4.8481368111e-06 rad
|
| "_2 |
(square arcsec) |
2.35044305391e-11 sr
|
| ' |
(arcmin) |
0.000290888208666 rad
|
| |
(arcsec) |
4.8481368111e-06 rad
|
| _2 |
(square arcsec) |
2.35044305391e-11 sr
|
| '_2 |
(square arcmin) |
8.46159499408e-08 sr
|
| : |
(hour) |
3600 s
|
| :: |
(minute) |
60 s
|
| ::: |
(second) |
1 s
|
| Ah |
(ampere hour) |
3600 s.A
|
| Angstrom |
(angstrom) |
1e-10 m
|
| Btu |
(British thermal unit (Int)) |
1055.056 m2.kg.s-2
|
| CM |
(metric carat) |
0.0002 kg
|
| Cal |
(large calorie (Int)) |
4186.8 m2.kg.s-2
|
| FU |
(flux unit) |
1e-26 kg.s-2
|
| G |
(gauss) |
0.0001 kg.s-2.A-1
|
| Gal |
(gal) |
0.01 m.s-2
|
| Gb |
(gilbert) |
0.795774715459 A
|
| Mx |
(maxwell) |
1e-08 m2.kg.s-2.A-1
|
| Oe |
(oersted) |
79.5774715459 m-1.A
|
| R |
(mile) |
0.000258 kg-1.s.A
|
| St |
(stokes) |
0.0001 m2.s-1
|
| Torr |
(torr) |
133.322368421 m-1.kg.s-2
|
| USfl_oz |
(fluid ounce (US)) |
2.95735295625e-05 m3
|
| USgal |
(gallon (US)) |
0.003785411784 m3
|
| WU |
(WSRT flux unit) |
5e-29 kg.s-2
|
| abA |
(abampere) |
10 A
|
| abC |
(abcoulomb) |
10 s.A
|
| abF |
(abfarad) |
1000000000 m-2.kg-1.s4.A2
|
| abH |
(abhenry) |
1e-09 m2.kg.s-2.A-2
|
| abOhm |
(abohm) |
1e-09 m2.kg.s-3.A-2
|
| abV |
(abvolt) |
1e-08 m2.kg.s-3.A-1
|
| ac |
(acre) |
4046.8564224 m2
|
| arcmin_2 |
(square arcmin) |
8.46159499408e-08 sr
|
| arcsec_2 |
(square arcsec) |
2.35044305391e-11 sr
|
| ata |
(technical atmosphere) |
98066.5 m-1.kg.s-2
|
| atm |
(standard atmosphere) |
101325 m-1.kg.s-2
|
| bar |
(bar) |
100000 m-1.kg.s-2
|
| beam |
(undefined beam area) |
1 _
|
| cal |
(calorie (Int)) |
4.1868 m2.kg.s-2
|
| count |
(count) |
1 _
|
| cwt |
(hundredweight) |
50.80234544 kg
|
| deg_2 |
(square degree) |
0.000304617419787 sr
|
| dyn |
(dyne) |
1e-05 m.kg.s-2
|
| eV |
(electron volt) |
1.60217733e-19 m2.kg.s-2
|
| erg |
(erg) |
1e-07 m2.kg.s-2
|
| fl_oz |
(fluid ounce (Imp)) |
2.84130488996e-05 m3
|
| ft |
(foot) |
0.3048 m
|
| fu |
(flux unit) |
1e-26 kg.s-2
|
| fur |
(furlong) |
201.168 m
|
| gal |
(gallon (Imp)) |
0.00454608782394 m3
|
| ha |
(hectare) |
10000 m2
|
| hp |
(horsepower) |
745.7 m2.kg.s-3
|
| in |
(inch) |
0.0254 m
|
| kn |
(knot (Imp)) |
0.514773333333 m.s-1
|
| lambda |
(lambda) |
1 _
|
| lb |
(pound (avoirdupois)) |
0.45359237 kg
|
| ly |
(light year) |
9.46073047e+15 m
|
| mHg |
(metre of mercury) |
133322.387415 m-1.kg.s-2
|
| mile |
(mile) |
1609.344 m
|
| n_mile |
(nautical mile (Imp)) |
1853.184 m
|
| oz |
(ounce (avoirdupois)) |
0.028349523125 kg
|
| pixel |
(pixel) |
1 _
|
| sb |
(stilb) |
10000 m-2.cd
|
| sq_arcmin |
(square arcmin) |
8.46159499408e-08 sr
|
| sq_arcsec |
(square arcsec) |
2.35044305391e-11 sr
|
| sq_deg |
(square degree) |
0.000304617419787 sr
|
| statA |
(statampere) |
3.33564095198e-10 A
|
| statC |
(statcoulomb) |
3.33564095198e-10 s.A
|
| statF |
(statfarad) |
1.11188031733e-12 m-2.kg-1.s4.A2
|
| statH |
(stathenry) |
899377374000 m2.kg.s-2.A-2
|
| statOhm |
(statohm) |
899377374000 m2.kg.s-3.A-2
|
| statV |
(statvolt) |
299.792458 m2.kg.s-3.A-1
|
| u |
(atomic mass unit) |
1.661e-27 kg
|
| yd |
(yard) |
0.9144 m
|
| yr |
(year) |
31557600 s
|
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