Physics
Units & Constants: Units Conversion
| Length / Distance | Speed / Velocity | Mass | Electric Current |
| Area | Acceleration | Force | Electric Potential |
| Volume | Angular Velocity | Pressure | Electric Resistance |
| Time | Angular Acceleration | Power | |
| Angle | Temperature | Work / Energy |
| nm | nanometer | |
| µm | micrometer | |
| mm | millimeter | |
| cm | centimeter | |
| dm | decimeter | |
| m | meter | |
| dam | dekameter | |
| hm | hectometer | |
| km | kilometer | |
| " | inch | |
| ' | foot | |
| yd | yard | |
| mi | mile | |
| nmi | nautical mile | |
| Å | angstrom | |
| au | astronomical unit | |
| pc | parsec | |
| ly | light year | |
| ls | light second | |
| mil | mil | |
| ch | chain | |
| fur | furlong | |
| fath | fathom | |
| cable | cable length | |
| cubit | cubit |
| m/s | meters per second | |
| m/h | meters per hour | |
| km/s | kilometers per second | |
| km/h | kilometers per hour | |
| in/s | inches per second | |
| ft/s | feet per second | |
| yd/s | yards per second | |
| mi/s | miles per second | |
| in/min | inches per minute | |
| in/h | inches per hour | |
| ft/h | feet per hour | |
| yd/h | yards per hour | |
| mi/h | miles per hour | |
| knot | knot | |
| mach | speed of sound at 20°C 1atm | |
| c | speed of light |
| mg | milligram | |
| g | gram | |
| kg | kilogram | |
| t | tonne | |
| oz | ounce | |
| lb | pound | |
| ST | short ton | |
| LY | long ton | |
| dr | dram | |
| st | stone | |
| gr | grain | |
| dwt | pennyweight | |
| oz t | troy ounce | |
| lb t | troy pound | |
| ct | carat | |
| Da | dalton/atomic mass unit | |
| slug | slug |
| µA | microampere | |
| mA | milliampere | |
| A | ampere | |
| kA | kiloampere | |
| MA | megampere | |
| abA | abampere | |
| Bi | biot | |
| stA | statampere |
| µm² | square micrometer | |
| mm² | square millimeter | |
| m² | square meter | |
| are | are | |
| ha | hectare | |
| km² | square kilometer | |
| in² | square inch | |
| ft² | square foot | |
| yd² | square yard | |
| mi² | square mile | |
| acre | acre | |
| cmil | circular mil |
| mm/s² | millimeters per second squared | |
| cm/s² | centimeter per second squared | |
| m/s² | meters per second squared | |
| m/h² | meters per hours quared | |
| km/s² | kilometers per second squared | |
| km/h² | kilometers per hour squared | |
| in/s² | inches per second squared | |
| ft/s² | feet per second squared | |
| ft/h² | feet per hour squared | |
| yd/s² | yards per second squared | |
| mi/s² | miles per second squared | |
| g | standard gravity | |
| Gal | gal/Galileo |
| N | newton | |
| kN | kilonewton | |
| J/m | joule/meter | |
| J/cm | joule/centimeter | |
| dyn | dyne | |
| gf | gram-force | |
| kgf | killogram-force | |
| kp | kilopond | |
| tf | tonne-force | |
| metric tf | metric ton-force | |
| lbf | pound-force | |
| ozf | ounce-force | |
| kip | kip | |
| pdl | poundal |
| µV | microvolt | |
| mV | millivolt | |
| V | volt | |
| kV | kilovolt | |
| MV | megavolt | |
| abV | abvolt | |
| stV | statvolt |
| mm³ | cubic millimeter | |
| cc | cubic centimeter | |
| dm³ | cubic decimeter | |
| m³ | cubic meter | |
| dam³ | cubic dekameter | |
| hm³ | cubic hectometer | |
| km³ | cubic kilometer | |
| mL | milliliter | |
| cL | centiliter | |
| dL | deciliter | |
| L | liter | |
| daL | dekaliter | |
| hL | hektoliter | |
| kL | kiloliter | |
| ML | megaliter | |
| fl dr US | fluid dram US | |
| fl oz US | fluid ounce US | |
| pt US | liquid pint US | |
| qt US | liquid quart US | |
| US gal | US gallon | |
| fl dr UK | fluid dram UK | |
| fl oz UK | fluid ounce UK | |
| pt UK | pint UK | |
| qt UK | quart UK | |
| imp gal | imperial gallon | |
| dry pt US | dry pint US | |
| dry qt US | dry quart US | |
| us dry gal | US dry gallon | |
| in³ | cubic inch | |
| ft³ | cubic foot | |
| yd³ | cubic yard | |
| mi³ | cubic mile | |
| tsp | tea spoon | |
| tbsp | table spoon | |
| c | cup | |
| US bsh | US bushel | |
| imp bsh | imperial bushel | |
| bbl | oil barrel | |
| dry bl | dry barrel |
| rad/s | radian per second | |
| rad/min | radian per minute | |
| rad/d | radian per hour | |
| rad/s | radian per day | |
| °/s | degree per second | |
| °/min | degree per minute | |
| °/h | degree per hour | |
| °/d | degree per day | |
| rpm | revolutions per minute | |
| Hz | Hertz |
| mPa | millipascal | |
| Pa | pascal | |
| hPa | hectopascal | |
| kPa | kilopascal | |
| MPa | megapascal | |
| N/mm² | newton per square millimeter | |
| N/cm² | newton per square centimeter | |
| N/m² | newton per square meter | |
| bar | bar | |
| mbar | milibar | |
| Ba | barye | |
| at | technical athmosphere | |
| atm | standard atmosphere | |
| psi | pound per square inch | |
| lbf/in² | pound per square inch | |
| ksi | kilopound per square unch | |
| Tor | tor | |
| mmHg | millimeter of mercury | |
| inHg | inch of mercury | |
| mmH₂O | millimeter of water at 4°C | |
| inH₂O | inch of water at 4°C |
| µΩ | microhm | |
| mΩ | milliohm | |
| Ω | ohm | |
| kΩ | kilohm | |
| MΩ | megohm | |
| abΩ | abohm | |
| stΩ | statohm | |
| S | siemens | |
| V/A | volt/ampere |
| ps | picosecond | |
| ns | nanosecond | |
| µs | microsecond | |
| ms | millisecond | |
| s | second | |
| min | minute | |
| h | hour | |
| d | day | |
| w | week | |
| sd | sideral day | |
| M | month | |
| sm | synodic month | |
| y | year | |
| a | Julian year | |
| ly | leap year | |
| sy | sideral year | |
| ty | tropical year | |
| dy | draconic year | |
| gy | mean Gregorian year | |
| D | decade | |
| C | century |
| rad/s² | radian per secon squared | |
| rad/min² | radian per minue squared | |
| rad/h² | radian per hour squared | |
| rev/s² | revolution per second squared | |
| rev/min² | revolution per minute squared | |
| rev/h² | revolution per hour squared | |
| °/s² | degree per second squared |
| µW | microwatt | |
| mW | milliwatt | |
| W | watt | |
| kW | kilowatt | |
| MW | megawatt | |
| GW | gigawatt | |
| metric hp | metric horsepower | |
| imperial hp | imperial horsepower | |
| V A | volt ampere | |
| btu/s IT | BTU per second IT | |
| btu/min IT | BTU per minute IT | |
| btu/h IT | BTU per hour IT | |
| btu/s th | BTU per second thermoch. | |
| btu/min th | BTU per minute thermoch. | |
| btu/h th | BTU per hour thermoch. | |
| TR | ton of refrigeration | |
| MBH | 1000 BTU per hour | |
| J/s | joule per second | |
| J/min | joule per minute | |
| J/h | joule per hour | |
| erg/s | erg per second | |
| cal/s th | calorie per second thermoch. | |
| cal/min th | calorie per minute thermoch. | |
| cal/h th | calorie per hour thermoch. | |
| cal/s it | calorie per second IT | |
| cal/min it | calorie per minute IT | |
| cal/h it | calorie per hour IT | |
| kcal/s th | kilocalorie per second th. | |
| kcal/min th | kilocalorie per minute th. | |
| kcal/h th | kilocalorie per hour th. | |
| kcal/s it | kilocalorie per second IT | |
| kcal/min it | kilocalorie per minute IT | |
| kcal/h it | kilocalorie per hour IT | |
| dBm | decibels of milliwatts | |
| ft-lbf/s | foot-pound force per second | |
| ft-lbf/min | foot-pound force per minute | |
| ft-lbf/h | foot-pound force per hour | |
| lb-ft/s | pound-foot per second | |
| lb-ft/min | pound-foot force per minute | |
| lb-ft/h | pound-foot force per hour |
| rad | radian | |
| ° | degree | |
| ' | minute | |
| " | second | |
| mrad | milliradian | |
| grad | gradian | |
| gon | gon | |
| r | revolution | |
| c | circle | |
| mil | milliradian military |
| K | Kelvin | |
| °C | °Celsius | |
| °F | °Fahrenheit | |
| °Ra | °Rankine | |
| °Re | °Réaumur | |
| °Rø | °Rømer | |
| °N | °Newton |
| µJ | microjoule | |
| mJ | millijoule | |
| J | joule | |
| kJ | kilojoule | |
| MJ | megajoule | |
| GJ | gigajoule | |
| metric hp | metric horsepower | |
| imperial hp | imperial horsepower | |
| W s | watt second | |
| W h | watt hour | |
| kW h | kilowatt hour | |
| µeV | microelectronvolt | |
| meV | millielectronvolt | |
| eV | electronvolt | |
| keV | kiloelectronvolt | |
| MeV | megaelectronvolt | |
| GeV | gigaelectronvolt | |
| TeV | teraelectronvolt | |
| PeV | petaelectronvolt | |
| EeV | exaelectronvolt | |
| BeV | bevatron | |
| cal th | calorie thermoch. | |
| cal it | calorie IT | |
| kcal th | kilocalorie thermoch. | |
| kcal it | kilocalorie IT | |
| btu IT | BTU IT | |
| btu th | BTU thermoch. | |
| btu th 59 °F | BTU thermoch. 59 °F | |
| therm EC | therm EC | |
| therm US | therm US | |
| N m | newton meter | |
| ft-lbf/s | foot-pound force | |
| lb-ft/s | pound-foot | |
| in-lbf/s | inch-pound force | |
| lb-in/s | pound-inch | |
| in-ozf/s | inch-ounce force | |
| oz-in/s | ounce-inch | |
| erg | erg | |
| dyn⋅cm | dyn centimeter | |
| t of TNT | TNT equivalent | |
| kiloton | kiloton of TNT | |
| megaton | megaton of TNT | |
| Eh | hartree energy | |
| Ry | Rydberg unit of energy |