Physical Units
From CASA Guides
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 |
User
| pix | (pixel units) | 1 |
