Converts dimensionless quantity units such as percent, permile, ppm (parts per milion) mU (miliuno) etc.

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

Value
Unit
Decimals

1 (percent) is equal to:

Unit	Symbol	Symbol (plain text)	Value	Notes
percent	Show source $\mathrlap{\it{/}}{^0}_{\,0}$	%	1	Equvalent to one hundredth (1/100). Percents are very common in everyday life e.g. to express various financial data such as inflation rate, profit from bank deposit or to measure concentration of solutions. See the percentage calculator for more information. $1\% = \frac{1}{100} = 0.01$
permil	Show source $\mathrlap{\it{/}}{^0}_{\,00}$	‰	10	Equvalent to one thousandth (1/1000) or one tenth of percent (0.1%). Permils are used, among other, to express blood alcohol levels. $1\mathrlap{\it{/}}{^0}_{\,00} = \frac{1}{1000} = 0.001 = 0.1\%$
basis point (permyriad)	Show source $\mathrlap{\it{/}}{^0}_{\,000}$	‱	100	Equivalent to one ten-thousandth (1/10000) or one hundredth of a percent (0.01%). The basis point is often used to express small changes in financial values. $1\ bp = 1\mathrlap{\it{/}}{^0}_{\,000} = \frac{1}{10000} = 0.01\%$

financial

Unit	Symbol	Symbol (plain text)	Value	Notes
basis point (permyriad)	Show source $\mathrlap{\it{/}}{^0}_{\,000}$	‱	100	Equivalent to one ten-thousandth (1/10000) or one hundredth of a percent (0.01%). The basis point is often used to express small changes in financial values. $1\ bp = 1\mathrlap{\it{/}}{^0}_{\,000} = \frac{1}{10000} = 0.01\%$
percentage in point	Show source $pip$	pip	100	Alternative name for basis point used on currency markets (FOREX). See the basis point for more information. $1\ pip = 1\ bp = 1\mathrlap{\it{/}}{^0}_{\,000}$
tick size (US bonds)	Show source $tick$	tick	32	Equivalent to one thirty-second of percent (1/32 %). US tick is used to measure small price changes on financial markets in United States (e.g. prices of bonds, stocks or futures). $1\ \text{tick (US)} = \frac{1}{32}\%$
tick size plus (US bonds)	Show source $tick+$	tick+	64	Equivalent to one sixty-fourth of percent (1/64 %). US tick+ is used to measure small price changes on financial markets in United States (e.g. prices of bonds, stocks or futures). $1\ \text{tick+ (US)} = \frac{1}{64}\% = 2\ \text{tick (US)}$

chemical

Unit	Symbol	Symbol (plain text)	Value	Notes
parts per thousand	Show source $ppth$	ppth	10	Equivalent to one permil. It's the abbreviation for parts per thousand. See the permil unit for more information. $1\ ppth = 1\mathrlap{\it{/}}{^0}_{\,00} = \frac{1}{1000} = 0.1\% = 10^{-3}$
parts per million	Show source $ppm$	ppm	10000	Unit used in chemistry to measure very small concentrations. It's the abbreviation for parts per million. The solution has concentration of one ppm if there is one part of substance (solute) per million parts of solution (mass, volume, molar etc.). $1\ ppm = \frac{1}{1\ 000\ 000} = 0.0001\% = 10^{-6}$
parts per hundred million	Show source $pphm$	pphm	1000000	Unit used in chemistry to measure very small concentrations. It's the abbreviation for parts per hundred million. The solution has concentration of one pphm if there is one part of substance (solute) per one hundred million parts of solution (mass, volume, molar etc.). $1\ pphm = \frac{1}{100\ 000\ 000} = 10^{-6}\ \% = 10^{-8}$
parts per billion	Show source $ppb$	ppb	10000000	Unit used in chemistry to measure very small concentrations. It's the abbreviation for parts per billion. The solution has concentration of one ppb if there is one part of substance (solute) per billion parts of solution (mass, volume, molar etc.). $1\ ppb = \frac{1}{1\ 000\ 000\ 000} = 10^{-9} = 10^{-7}\ \%$
parts per trillion	Show source $ppt$	ppt	10000000000	Unit used in chemistry to measure very small concentrations. It's the abbreviation for parts per trillion. The solution has concentration of one ppt if there is one part of substance (solute) per trillion parts of solution (mass, volume, molar etc.). $1\ ppt = 10^{-12} = 10^{-10}\ \%$
parts per quadrillion	Show source $ppq$	ppq	1×10¹³	Unit used in chemistry to measure very small concentrations. It's the abbreviation for parts per quadrillion. The solution has concentration of one ppq if there is one part of substance (solute) per quadrillion parts of solution (mass, volume, molar etc.). $1\ ppq = 10^{-15} = 10^{-13}\ \%$

SI

Unit	Symbol	Symbol (plain text)	Value	Notes
yottauno	Show source $YU$	YU	1×10^-26	Derived dimensionless quantity unit in SI system. One yottauno is equal to septylion of uno: $1\ YU= 10^{24}\ U$
zettauno	Show source $ZU$	ZU	1×10^-23	Derived dimensionless quantity unit in SI system. One zettauno is equal to sextillion of uno: $1\ ZU= 10^{21}\ U$
exauno	Show source $EU$	EU	1×10^-20	Derived dimensionless quantity unit in SI system. One exauno is equal to quintillion of uno: $1\ EU= 10^{18}\ U$
petauno	Show source $PU$	PU	1×10^-17	Derived dimensionless quantity unit in SI system. One petauno is equal to quadrillion of uno: $1\ PU= 10^{15}\ U$
terauno	Show source $TU$	TU	1×10^-14	Derived dimensionless quantity unit in SI system. One terauno is equal to trillion of uno: $1\ TU= 10^{12}\ U$
gigauno	Show source $GU$	GU	1×10^-11	Derived dimensionless quantity unit in SI system. One gigauno is equal to billion of uno: $1\ GU= 10^{9}\ U$
megauno	Show source $MU$	MU	1×10^-8	Derived dimensionless quantity unit in SI system. One megauno is equal to million of uno: $1\ MU=1000000\ U= 10^{6}\ U$
kilouno	Show source $kU$	kU	0.00001	Derived dimensionless quantity unit in SI system. One kilouno is equal to thausand of uno: $1\ kU=1000\ U= 10^{3}\ U$
hektouno	Show source $hU$	hU	0.0001	Derived dimensionless quantity unit in SI system. One hektouno is equal to hundred of uno: $1\ hU=100\ U= 10^{2}\ U$
uno	Show source $U$	U	0.01	Base dimensionless quantity unit in SI system.
deciuno	Show source $dU$	dU	0.1	Derived dimensionless quantity unit in SI system. One deciuno is equal to one tenth of uno: $1\ dU=0.1\ U= 10^{-1}\ U$
centiuno	Show source $cU$	cU	1	Derived dimensionless quantity unit in SI system. One centiuno is equal to one hundredth of uno: $1\ cU=0.01\ U= 10^{-2}\ U$
miliuno	Show source $mU$	mU	10	Derived dimensionless quantity unit in SI system. One miliuno is equal to one thousandth of uno: $1\ mU=0.001\ U= 10^{-3}\ U$
microuno	Show source $\mu U$	µU	10000	Derived dimensionless quantity unit in SI system. One microuno is equal to one millionth of uno: $1\ \mu U=0.000001\ U= 10^{-6}\ U$
nanouno	Show source $nU$	nU	10000000	Derived dimensionless quantity unit in SI system. One nanouno is equal to one billionth of uno: $1\ nU= 10^{-9}\ U$
pikouno	Show source $pU$	pU	10000000000	Derived dimensionless quantity unit in SI system. One pikouno is equal to one trillionth of uno: $1\ pU= 10^{-12}\ U$
femtouno	Show source $fU$	fU	1×10¹³	Derived dimensionless quantity unit in SI system. One femtouno is equal to one quadrillionth of uno: $1\ fU= 10^{-15}\ U$
attouno	Show source $aU$	aU	1×10¹⁶	Derived dimensionless quantity unit in SI system. One attouno is equal to one quintillionth of uno: $1\ aU= 10^{-18}\ U$
zeptouno	Show source $zU$	zU	1×10¹⁹	Derived dimensionless quantity unit in SI system. One zeptouno is equal to one sextillionth of uno: $1\ zU= 10^{-21}\ U$
yoctouno	Show source $yU$	yU	1×10²²	Derived dimensionless quantity unit in SI system. One yoctouno is equal to one septillionth of uno: $1\ yU= 10^{-24}\ U$

Some facts

The basic unit for expressing dimensionless quantities in the SI system is one uno:

$1 U = 1 = \dfrac{1}{1} = 100 \%$
In practice, however, SI units are rarely used for this purpose in favor of traditional units, often developed for the needs of a given field, e.g.:
- percent ( $\mathrlap{\it{/}}{^0}_{\,0}$ ) - equal to one hundredth of the whole ( $\frac{1}{100}$ ), used in many fields such as finance (e.g. interest rate on deposits) or chemistry (e.g. concentration of solutions), you can find more about percentages in our other calculator: Percentage
- permile ( $\mathrlap{\it{/}}{^0}_{\,00}$ ) - equal to one thousandth of the whole ( $\frac{1}{1000}$ ), used, for example, when determining the alcohol concentration in the blood,
- basis point ( $\mathrlap{\it{/}}{^0}_{\,000}$ ) - equal to one ten-thousandth of the whole ( $\frac{1}{10000}$ ), used in economics and accounting,
- pip (percentage in point) - equal to one ten-thousandth of the whole ( $\frac{1}{10000}$ ), used to determine the change in exchange rates on foreign exchange markets (so-called FOREX),
- tick size - equal to one thirty-second ( $\frac{1}{32}\%$ ) or one six-quarter ( $\frac{1}{64}\%$ , so-called tick plus) of the percent, used when determining fluctuations bond rates on the US stock exchange,
- ppm (parts per million) - equal to one millionth of the total ( $\frac{1}{1000000}$ ), used in the natural sciences to determine very small concentrations, analogous units are also used such as ppb (parts per billion), ppq (parts per quantillion) etc.

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.