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

Beta version#

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Symbolic algebra

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

Value
Unit
Decimals

$1$ (ohm) is equal to:#

SI#

Unit	Symbol	Symbol (plain text)	Value as symbolic	Value as numeric	Notes	Unit conversion formula
yottaohm	Show source $Y\Omega$	YΩ	Show source $\text{...}$	-	Derived electrical resistance unit in SI system. One yottaohm is equal to septylion of ohms: $1\ Y\Omega= 10^{24}\ \Omega$	Show source $...$
zettaohm	Show source $Z\Omega$	ZΩ	Show source $\text{...}$	-	Derived electrical resistance unit in SI system. One zettaohm is equal to sextillion of ohms: $1\ Z\Omega= 10^{21}\ \Omega$	Show source $...$
exaohm	Show source $E\Omega$	EΩ	Show source $\text{...}$	-	Derived electrical resistance unit in SI system. One exaohm is equal to quintillion of ohms: $1\ E\Omega= 10^{18}\ \Omega$	Show source $...$
petaohm	Show source $P\Omega$	PΩ	Show source $\text{...}$	-	Derived electrical resistance unit in SI system. One petaohm is equal to quadrillion of ohms: $1\ P\Omega= 10^{15}\ \Omega$	Show source $...$
teraohm	Show source $T\Omega$	TΩ	Show source $\text{...}$	-	Derived electrical resistance unit in SI system. One teraohm is equal to trillion of ohms: $1\ T\Omega= 10^{12}\ \Omega$	Show source $...$
gigaohm	Show source $G\Omega$	GΩ	Show source $\text{...}$	-	Derived electrical resistance unit in SI system. One gigaohm is equal to billion of ohms: $1\ G\Omega= 10^{9}\ \Omega$	Show source $...$
megaohm	Show source $M\Omega$	MΩ	Show source $\text{...}$	-	Derived electrical resistance unit in SI system. One megaohm is equal to million of ohms: $1\ M\Omega=1000000\ \Omega= 10^{6}\ \Omega$	Show source $...$
kiloohm	Show source $k\Omega$	kΩ	Show source $\text{...}$	-	Derived electrical resistance unit in SI system. One kiloohm is equal to thausand of ohms: $1\ k\Omega=1000\ \Omega= 10^{3}\ \Omega$	Show source $...$
hektoohm	Show source $h\Omega$	hΩ	Show source $\text{...}$	-	Derived electrical resistance unit in SI system. One hektoohm is equal to hundred of ohms: $1\ h\Omega=100\ \Omega= 10^{2}\ \Omega$	Show source $...$
ohm	Show source $\Omega$	Ω	Show source $\text{...}$	-	Base 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. $1 \Omega = \dfrac{1V}{1A}$	Show source $...$
deciohm	Show source $d\Omega$	dΩ	Show source $\text{...}$	-	Derived electrical resistance unit in SI system. One deciohm is equal to one tenth of ohm: $1\ d\Omega=0.1\ \Omega= 10^{-1}\ \Omega$	Show source $...$
centiohm	Show source $c\Omega$	cΩ	Show source $\text{...}$	-	Derived electrical resistance unit in SI system. One centiohm is equal to one hundredth of ohm: $1\ c\Omega=0.01\ \Omega= 10^{-2}\ \Omega$	Show source $...$
miliohm	Show source $m\Omega$	mΩ	Show source $\text{...}$	-	Derived electrical resistance unit in SI system. One miliohm is equal to one thousandth of ohm: $1\ m\Omega=0.001\ \Omega= 10^{-3}\ \Omega$	Show source $...$
microohm	Show source $\mu \Omega$	µΩ	Show source $\text{...}$	-	Derived electrical resistance unit in SI system. One microohm is equal to one millionth of ohm: $1\ \mu \Omega=0.000001\ \Omega= 10^{-6}\ \Omega$	Show source $...$
nanoohm	Show source $n\Omega$	nΩ	Show source $\text{...}$	-	Derived electrical resistance unit in SI system. One nanoohm is equal to one billionth of ohm: $1\ n\Omega= 10^{-9}\ \Omega$	Show source $...$
pikoohm	Show source $p\Omega$	pΩ	Show source $\text{...}$	-	Derived electrical resistance unit in SI system. One pikoohm is equal to one trillionth of ohm: $1\ p\Omega= 10^{-12}\ \Omega$	Show source $...$
femtoohm	Show source $f\Omega$	fΩ	Show source $\text{...}$	-	Derived electrical resistance unit in SI system. One femtoohm is equal to one quadrillionth of ohm: $1\ f\Omega= 10^{-15}\ \Omega$	Show source $...$
attoohm	Show source $a\Omega$	aΩ	Show source $\text{...}$	-	Derived electrical resistance unit in SI system. One attoohm is equal to one quintillionth of ohm: $1\ a\Omega= 10^{-18}\ \Omega$	Show source $...$
zeptoohm	Show source $z\Omega$	zΩ	Show source $\text{...}$	-	Derived electrical resistance unit in SI system. One zeptoohm is equal to one sextillionth of ohm: $1\ z\Omega= 10^{-21}\ \Omega$	Show source $...$
yoctoohm	Show source $y\Omega$	yΩ	Show source $\text{...}$	-	Derived electrical resistance unit in SI system. One yoctoohm is equal to one septillionth of ohm: $1\ y\Omega= 10^{-24}\ \Omega$	Show source $...$

other#

Unit	Symbol	Symbol (plain text)	Value as symbolic	Value as numeric	Notes	Unit conversion formula
volt per ampere	Show source $\frac{V}{A}$	V/A	Show source $\text{...}$	-	Equivalent to one ohm. See ohm unit for more.	Show source $...$
stat (ESU)	Show source $statohm$	statohm	Show source $\text{...}$	-	Historical electrical resistance unit in ESU (Electrostatic units), which is variation of CGS system created to handle electrical units. $1\ stat\Omega = \dfrac{statV}{statA} = \sqrt{g \times cm}$	Show source $...$
ab (EMU)	Show source $abohm$	abohm	Show source $\text{...}$	-	Historical electrical resistance unit in EMU (Electomagnetic units), which is variation of CGS system created to handle electromagnetic units. $1\ ab\Omega = \dfrac{abV}{abA} = \dfrac{\sqrt{g \times cm}}{c^2}$	Show source $...$

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:

$1 \Omega = \dfrac{1V}{1A}$
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:

$R = \dfrac{U}{I}$
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:

$R = \rho \dfrac{l}{S}$
where:
- $R$ - resistance of conductor,
- $\rho$ - proportionality coefficient specific for the substance from which the conductor is made,
- $l$ - length of the conductor,
- $S$ - 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.