size | Unit | symbol | dimension |
catalytic activity | Katal | kat | s1.mol |
X-radiation | Rontgen | coulomb | 1 ⁄ 3.109 |
radioactive activity | Becquerel | Bq | s-1 |
biological effect | Sievert | Sv | 1 rem = 10-2Sv |
radioactive activity | Mache | Me | 1 Me = 3,64 |
electric capacity | farad | F | m-2.kg-1.s4.A2 |
magnetic field | tesla | T | kg.s-2.A-1 |
magnetic induction | gauss | ||
magnetic induction | maxwell | mx | |
magnetic force | gilbert | ||
energy flow | finsen | FU | |
energy density | langley | Ly | |
electric charge | coulomb | C | s.A |
electric charge | franklin | fr | |
conductance | siemens | S | m-2.kg-1.s3.A2 |
proportion absorptive | gray | Gy | m2.s-2 |
illumination | lux | Lx | m-2.cd.sr |
energy | joule | J | m2.kg.s-2 |
magnetic flux | weber | Wb | m2.kg.s-2.A-1 |
luminous flow | lumen | lm | cd.sr |
force | newton | N | m.kg.s-2 |
frequency | hertz | Hz | s-1 |
inductance | henry | H | m2.kg.s-2.A-2 |
luminance | nit | Nt | m-2.cd.sr |
luminance | blondel | ||
luminance | lambert | ||
pressure | pascal | Pa | m-1.kg.s-2 |
power | watt | W | m2.kg.s-3 |
electrical resistance | ohm | W | m2.kg.s-3.A-2 |
electric tension | volt | V | m2.kg.s-3.A-1 |
vergency | dioptrie | d | m-1 |
action | joule-second | J.s | |
magnetization | ampere per meter | A.m-1 | |
electric field | volt per meter | V.m-1 | |
conductivity | siemens per meter | S.m-1 | |
apparent brightness | lumen by Watt | lm.W-1 | |
flux density | Watt per square meter | W.m-2 | |
entropy | joule by Kelvin | J.K-1 | |
electric excitation | Coulomb per square meter | C.m-2 | |
magnetic excitation | amp per meter | A.m-1 | |
luminous exposure | lux-second | lx.s | |
electric moment | Coulomb-meter | C.m | |
permeability | Henry per meter | H.m-1 | |
permeability | darcy | ||
permittivity | farad per meter | F.M-1 | |
pulsation | second with the power -1 | s-1 | |
reluctance | Henry with the power -1 | H-1 | |
impact strength | joule per square meter | J.m-2 | |
resistivity | ohmmeter | W.m | |
electrostatic charges | statamps | ||
electromagnetic current | abamps | ||
intensity | amps | ||
intensity | biot | ||
intensity | edison | ||
transmission speed | baud | bd |
1 GeV | 1,60218 x 10-10 J | erg |
1 keV | 1,60218 x 10-16 J | kiloelectronvolt |
1 kJ | 1000 J | kilojoule |
1 kWh | 3,6 x 10^6 J | kilowatt-hour |
1 MeV | 1,60218 x 10-13 J | megaelectronvolt |
1 Btu (IT) ⁄ h | 0,293071 W | British thermal unit (IT) per hour |
1 Btu (IT) ⁄ min | 17,5843 W | British thermal unit (IT) per minute |
1 Btu (IT) ⁄ s | 1055.06 W | British thermal unit (IT) per second |
1 Btu (therm.) ⁄ h | 0,292875 W | British thermal unit (therm.) per hour |
1 Btu (therm.) ⁄ min | 17,5725 W | British thermal unit (therm.) per minute |
1 Btu (therm.) ⁄ s | 1054,35 W | British thermal unit (therm.) per second |
1 cal (IT) ⁄ h | 0,00116298 W | calorie (IT) per hour |
1 cal (IT) ⁄ min | 0,069779 W | calorie (IT) per minute |
1 cal (IT) ⁄ s | 4,18674 W | calorie (IT) per second |
1 cal (therm.) ⁄ h | 0,001162222 W | calorie (therm.) per hour |
1 cal (therm.) ⁄ min | 0,0697333 W | calorie (therm.) per minute |
1 cal (therm.) ⁄ s | 4,184 W | calorie (therm.) per second |
1 cv, HP | 735,499 W | horse power |
1 dyn-cm ⁄ s | 1 x 10-7 W | dyne-centimetre a second |
1 erg ⁄ s | 1 x 10-7 W | erg per second |
1 ft-lbf ⁄ h | 3,76616 x 10-4 W | foot-pound forces per hour |
1 ft-lbf ⁄ min | 0,022597 W | foot-pound forces per minute |
1 ft-lbf ⁄ s | 1,35582 W | foot-pound forces per second |
1 ft-pdl ⁄ s | 0,0421401 W | foot-poundal per second |
1 HP | 745,7 W | horsepower (550 ft-lbf ⁄ s) |
1 HP | 9809,5 W | horsepower (boiler) |
1 BHP, hp | 745,7 W | horsepower(british) |
1 cv, HP | 735,499 W | horsepower |
1 HP | 746 W | horsepower (electricity) |
1 HP | 735,499 W | horsepower (meter) |
1 HP | 746,043 W | horsepower (water) |
1 kgf-m ⁄ s | 9,80665 W | kilogram force-meter per second |
1 kW | 1000 W | kilowatt |
1 CTR (UK) | 3922,7 W | ton (refrigeration, UK) |
1 CTR (US) | 3516,8 W | ton (refrigeration, US) |
1 VA | 1 W | volt-ampere |
1 W | 1 W | watt |
1 W | 1,00019 W | watt (int. mean) |
1 W | 1,00016 W | watt (int. US) |
factor | name of the prefix | symbol |
10-18 | atto | a |
10-15 | femto | f |
10-12 | pico | p |
10-9 | nano | n |
10-6 | micro | µ |
10-3 | milli | m |
10-2 | centi | c |
10-1 | deci | d |
101 | deca | da |
102 | hecto | h |
103 | kilo | k |
106 | mega | M |
109 | giga | G |
1012 | tera | T |
1015 | peta | P |
1018 | exa | E |