Electrical resistance units converter
Converts electrical resistance value from one unit to another e.g. from ohms (Ω) to megaoms (MΩ) or vice versa.

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Inputs data - value and unit, which we're going to convert#

Value
Unit
Decimals

#

SI#

UnitSymbolSymbol
(plain text)
ValueNotes
yottaohmShow sourceYΩY\Omega1×10-24Derived electrical resistance unit in SI system. One yottaohm is equal to septylion of ohms: 1 YΩ=1024 Ω1\ Y\Omega= 10^{24}\ \Omega
zettaohmShow sourceZΩZ\Omega1×10-21Derived electrical resistance unit in SI system. One zettaohm is equal to sextillion of ohms: 1 ZΩ=1021 Ω1\ Z\Omega= 10^{21}\ \Omega
exaohmShow sourceEΩE\Omega1×10-18Derived electrical resistance unit in SI system. One exaohm is equal to quintillion of ohms: 1 EΩ=1018 Ω1\ E\Omega= 10^{18}\ \Omega
petaohmShow sourcePΩP\Omega1×10-15Derived electrical resistance unit in SI system. One petaohm is equal to quadrillion of ohms: 1 PΩ=1015 Ω1\ P\Omega= 10^{15}\ \Omega
teraohmShow sourceTΩT\Omega1×10-12Derived electrical resistance unit in SI system. One teraohm is equal to trillion of ohms: 1 TΩ=1012 Ω1\ T\Omega= 10^{12}\ \Omega
gigaohmShow sourceGΩG\Omega1×10-9Derived electrical resistance unit in SI system. One gigaohm is equal to billion of ohms: 1 GΩ=109 Ω1\ G\Omega= 10^{9}\ \Omega
megaohmShow sourceMΩM\Omega0.000001Derived electrical resistance unit in SI system. One megaohm is equal to million of ohms: 1 MΩ=1000000 Ω=106 Ω1\ M\Omega=1000000\ \Omega= 10^{6}\ \Omega
kiloohmShow sourcekΩk\Omega0.001Derived electrical resistance unit in SI system. One kiloohm is equal to thausand of ohms: 1 kΩ=1000 Ω=103 Ω1\ k\Omega=1000\ \Omega= 10^{3}\ \Omega
hektoohmShow sourcehΩh\Omega0.01Derived electrical resistance unit in SI system. One hektoohm is equal to hundred of ohms: 1 hΩ=100 Ω=102 Ω1\ h\Omega=100\ \Omega= 10^{2}\ \Omega
ohmShow sourceΩ\OmegaΩ1Base electrical resistance unit in SI system. The conductor has a resistance of one ohm if, after applying one voltage to its ends, a current of one ampere flows.1Ω=1V1A1 \Omega = \dfrac{1V}{1A}
deciohmShow sourcedΩd\Omega10Derived electrical resistance unit in SI system. One deciohm is equal to one tenth of ohm: 1 dΩ=0.1 Ω=101 Ω1\ d\Omega=0.1\ \Omega= 10^{-1}\ \Omega
centiohmShow sourcecΩc\Omega100Derived electrical resistance unit in SI system. One centiohm is equal to one hundredth of ohm: 1 cΩ=0.01 Ω=102 Ω1\ c\Omega=0.01\ \Omega= 10^{-2}\ \Omega
miliohmShow sourcemΩm\Omega1000Derived electrical resistance unit in SI system. One miliohm is equal to one thousandth of ohm: 1 mΩ=0.001 Ω=103 Ω1\ m\Omega=0.001\ \Omega= 10^{-3}\ \Omega
microohmShow sourceμΩ\mu \OmegaµΩ1000000Derived electrical resistance unit in SI system. One microohm is equal to one millionth of ohm: 1 μΩ=0.000001 Ω=106 Ω1\ \mu \Omega=0.000001\ \Omega= 10^{-6}\ \Omega
nanoohmShow sourcenΩn\Omega1000000000Derived electrical resistance unit in SI system. One nanoohm is equal to one billionth of ohm: 1 nΩ=109 Ω1\ n\Omega= 10^{-9}\ \Omega
pikoohmShow sourcepΩp\Omega1×1012Derived electrical resistance unit in SI system. One pikoohm is equal to one trillionth of ohm: 1 pΩ=1012 Ω1\ p\Omega= 10^{-12}\ \Omega
femtoohmShow sourcefΩf\Omega1×1015Derived electrical resistance unit in SI system. One femtoohm is equal to one quadrillionth of ohm: 1 fΩ=1015 Ω1\ f\Omega= 10^{-15}\ \Omega
attoohmShow sourceaΩa\Omega1×1018Derived electrical resistance unit in SI system. One attoohm is equal to one quintillionth of ohm: 1 aΩ=1018 Ω1\ a\Omega= 10^{-18}\ \Omega
zeptoohmShow sourcezΩz\Omega1×1021Derived electrical resistance unit in SI system. One zeptoohm is equal to one sextillionth of ohm: 1 zΩ=1021 Ω1\ z\Omega= 10^{-21}\ \Omega
yoctoohmShow sourceyΩy\Omega1×1024Derived electrical resistance unit in SI system. One yoctoohm is equal to one septillionth of ohm: 1 yΩ=1024 Ω1\ y\Omega= 10^{-24}\ \Omega

other#

UnitSymbolSymbol
(plain text)
ValueNotes
volt per ampereShow sourceVA\frac{V}{A}V/A1Equivalent to one ohm. See ohm unit for more.
stat (ESU)Show sourcestatohmstatohmstatohm1.112650277×10-12Historical electrical resistance unit in ESU (Electrostatic units), which is variation of CGS system created to handle electrical units.1 statΩ=statVstatA=g×cm1\ stat\Omega = \dfrac{statV}{statA} = \sqrt{g \times cm}
ab (EMU)Show sourceabohmabohmabohm1000000000Historical electrical resistance unit in EMU (Electomagnetic units), which is variation of CGS system created to handle electromagnetic units.1 abΩ=abVabA=g×cmc21\ ab\Omega = \dfrac{abV}{abA} = \dfrac{\sqrt{g \times cm}}{c^2}

Some facts#

  • Resistance defines the relation between applied voltage (electric potential difference) and the electric current, that flows through the conductor.
  • Simply speaking: the greater resistance, the greater voltage should be used to reach the same current.
  • The basic unit of resistance is one ohm . A resistance of this value corresponds to a conductor through which, after applying 1V (one volt), a current of 1A (one ampere) will flow:
    1Ω=1V1A1 \Omega = \dfrac{1V}{1A}
  • In order to measure the codnductor resistance experimentally, we can apply a known, constant voltage to it, and then measure the flowing current. Then the voltage to current ratio will be equal to the resistance of the examined conductor:
    R=UIR = \dfrac{U}{I}
    where:
    • R - resistance of the conductor,
    • U - voltage applied to the conductor,
    • I - current that flows through the conductor after applying voltage.
  • Resistance is a specific to given conductor. If we have a conductor with a constant cross-sectional area (e.g. an electric cable of known thickness), its resistance can be described by the following equation:
    R=ρlSR = \rho \dfrac{l}{S}
    where:
    • RR - resistance of conductor,
    • ρ\rho - proportionality coefficient specific for the substance from which the conductor is made,
    • ll - length of the conductor,
    • SS - cross-sectional area of the conductor.

How to convert#

  • Enter the number to field "value" - enter the NUMBER only, no other words, symbols or unit names. You can use dot (.) or comma (,) to enter fractions.
    Examples:
    • 1000000
    • 123,23
    • 999.99999
  • Find and select your starting unit in field "unit". Some unit calculators have huge number of different units to select from - it's just how complicated our world is...
  • And... you got the result in the table below. You'll find several results for many different units - we show you all results we know at once. Just find the one you're looking for.

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