ppm - parts per million
ppm - parts per million
- What is ppm?
- Parts-per notations
- Chemical concentration
- Frequency stability
- Decimal, percent, permille, ppm, ppb, ppt conversion calculator
- mg per liter to ppm conversion calculator
- ppm conversions
- How to convert ppm to decimal fraction
- How to convert decimal fraction to ppm
- How to convert percent to ppm
- How to convert ppm to percent
- How to convert ppb to ppm
- How to convert ppm to ppb
- How to convert milligrams/liter to ppm
- How to convert grams/liter to ppm
- How to convert moles/liter to ppm
- How to convert ppm to Hz
- ppm to percent, ppb, ppt, ratio conversion table
What is ppm?
ppm is an abbreviation of parts per million. ppm is a value that represents the
part of a whole number in units of 1/1000000.
ppm is dimensionless quantity, a ratio of 2 quantities of the
same unit. For example: mg/kg.
One ppm is equal to 1/1000000 of the whole:
1ppm = 1/1000000 = 0.000001 = 1×10-6
One ppm is equal to 0.0001%:
1ppm = 0.0001%
ppmw
ppmw is an abbreviation of parts per million weight, a subunit of
ppm that is used for part of weights like milligrams per kilogram
(mg/kg).
ppmv
ppmv is an abbreviation of parts per million volume, a subunit of
ppm that is used for part of volumes like milliliters per cubic
meter (ml/m3).
Parts-per notations
Other part-per notations are written here:
Chemical concentration
ppm is used to measure chemical concentration, usually in a
solution of water.
Solute concentration of 1 ppm is solute concentration of 1/1000000
of the solution.
The concentration C in ppm is calculated
from the solute mass msolute in milligrams and the
solution mass msolution in milligrams .
C(ppm) = 1000000 × msolute
/ (msolution + msolute)
Usually the solute mass msolute is much smaller than the
solution mass msolution.
msolute
≪ msolution
Then the concentration C in ppm is equal to 1000000 times the
solute mass msolute
in milligrams (mg) divided by the solution mass msolution
in milligrams (mg):
C(ppm) = 1000000 × msolute
(mg)
/ msolution (mg)
The concentration C in ppm is also equal to the solute mass msolute
in milligrams (mg) divided by the solution mass msolution
in kilograms (kg):
C(ppm) = msolute
(mg)
/ msolution (kg)
When the solution is water, the volume of mass of one kilogram is
approximately one liter.
The concentration C in ppm is also equal to the solute mass msolute
in milligrams (mg) divided by the water solution volume Vsolution
in liters (l):
C(ppm) = msolute
(mg)
/ Vsolution (l)
Concentration of CO2
The concentration of carbon dioxide (CO2) in the
atmosphere is about 388ppm.
Frequency stability
The frequency stability of an electronic oscillator component can be measured
in ppm.
The maximal frequency variation Δf, divided by the
frequency f is equal to the frequency stability
Δf(Hz) /
f(Hz) = FS(ppm) / 1000000
Example
Oscillator with frequency of 32MHz and accuracy of
±200ppm, has frequency accuracy of
Δf(Hz) = ±200ppm
× 32MHz
/ 1000000 = ±6.4kHz
So the oscillator produces clock signal within the range of 32MHz±6.4kHz.
The supplied frequency variation is caused from temperature
change, aging, supply voltage and load changes.
Decimal, percent, permille, ppm, ppb, ppt conversion calculator
Enter proportion part in one of the text boxes and press the Convert button:
Moles per liter (mol/L) to milligarms per liter (mg/L) to ppm conversion calculator
Water solution, molar concentration (molarity) to milligrams per
liter to parts per million (ppm) converter.
PPM conversions
How to convert ppm to decimal fraction
The part P in decimal is equal to the part P in ppm divided by 1000000:
P(decimal) =
P(ppm) / 1000000
Example
Find the decimal fraction of 300ppm:
P(decimal) = 300ppm / 1000000 =
0.0003
How to convert decimal fraction to ppm
The part P in ppm is equal to the part P in decimal times 1000000:
P(ppm) = P(decimal) × 1000000
Example
Find how many ppm are in 0.0034:
P(ppm) = 0.0034 × 1000000 =
3400ppm
How to convert ppm to percent
The part P in percent (%) is equal to the part P in ppm divided
by 10000:
P(%) = P(ppm) /
10000
Example
Find how many percent are in 6ppm:
P(%) = 6ppm / 10000 = 0.0006%
How to convert percent to ppm
The part P in ppm is equal to the part P in percent (%) times
10000:
P(ppm) = P(%) ×
10000
Example
Find how many ppm are in 6%:
P(ppm) = 6%
× 10000 = 60000ppm
How to convert ppb to ppm
The part P in ppm is equal to the part P in ppb divided by 1000:
P(ppm) = P(ppb)
/ 1000
Example
Find how many ppm are in 6ppb:
P(ppm) = 6ppb / 1000 = 0.006ppm
How to convert ppm to ppb
The part P in ppb is equal to the part P in ppm times 1000:
P(ppb) = P(ppm)
× 1000
Example
Find how many ppb are in 6ppm:
P(ppb) = 6ppm
× 1000 = 6000ppb
How to convert milligrams/liter to ppm
The concentration C in parts-per million (ppm) is equal to
the concentration C in milligrams per kilogram (mg/kg) and equal to
1000 times the concentration C in milligrams per liter (mg/L), divided by the
solution density ρ in kilograms per cubic
meter (kg/m3):
C(ppm) = C(mg/kg)
= 1000 × C(mg/L) / ρ(kg/m3)
In water solution, the concentration C in parts-per million (ppm) is equal to
1000 times the concentration C in milligrams per liter (mg/L)
divided by the water solution density at temperature of 20ºC,
998.2071 in kilograms per cubic meter (kg/m3)
and approximately equal to the concentration C in milligrams per
liter (mg/L):
C(ppm) = 1000 × C(mg/L)
/ 998.2071(kg/m3)
≈ 1(L/kg)
× C(mg/L)
How to convert grams/liter to ppm
The concentration C in parts-per million (ppm) is equal to
1000 times the concentration C in grams per kilogram (g/kg) and equal to
1000000 times the concentration C in grams per liter (g/L), divided by the
solution density ρ in kilograms per cubic
meter (kg/m3):
C(ppm) = 1000 × C(g/kg)
= 106 × C(g/L) / ρ(kg/m3)
In water solution, the concentration C in parts-per million (ppm)
is equal to 1000 times the concentration C in grams per kilogram
(g/kg) and equal to 1000000 times the concentration C in grams per
liter (g/L), divided by the water solution density at temperature of
20ºC 998.2071 in kilograms per cubic meter
(kg/m3) and
approximately equal to 1000 times the concentration C in milligrams
per liter (mg/L):
C(ppm) = 1000 × C(g/kg)
= 106 × C(g/L) / 998.2071(kg/m3)
≈ 1000 × C(g/L)
How to convert moles/liter to ppm
The concentration C in parts-per million (ppm) is equal to the
concentration C in milligrams per kilogram (mg/kg) and equal to
1000000 times the molar concentration (molarity) c in moles per liter (mol/L),
times the solute molar mass in grams per mole (g/mol), divided by the
solution density ρ in kilograms per cubic
meter (kg/m3):
C(ppm) = C(mg/kg)
= 106 × c(mol/L) × M(g/mol) / ρ(kg/m3)
In water solution, the concentration C in parts-per million (ppm) is equal to the
concentration C in milligrams per kilogram (mg/kg) and equal to
1000000 times the molar concentration (molarity) c in moles per
liter (mol/L), times the solute molar mass in grams per mole (g/mol),
divided by the water solution density at temperature of 20ºC
998.2071 in kilograms per cubic
meter (kg/m3):
C(ppm) = C(mg/kg)
= 106 × c(mol/L) × M(g/mol) /
998.2071(kg/m3)
≈ 1000 × c(mol/L) × M(g/mol)
How to convert ppm to Hz
The frequency variation in hertz (Hz) is equal to the frequency
stability FS in ppm times the frequency in hertz (Hz) divided by
1000000:
Δf(Hz) = ± FS(ppm)
× f(Hz) / 1000000
Example
Oscillator with frequency of 32MHz and accuracy of
±200ppm, has frequency accu0racy of
Δf(Hz) = ±200ppm
× 32MHz
/ 1000000 = ±6.4kHz
So the oscillator produces clock signal within the range of 32MHz±6.4kHz.
ppm to ratio, percent, ppb, ppt conversion table
المصدر
| Name | Notation | Coefficient | |||||
|---|---|---|---|---|---|---|---|
| Percent | % | 10-2 | |||||
| Per-mille | ‰ | 10-3 | |||||
| Parts per million | ppm | 10-6 | |||||
| Parts per billion | ppb | 10-9 | |||||
| Parts per trillion | ppt | 10-12 | |||||
| Enter decimal: | |||||||
| Enter percent: | % | ||||||
| Enter permille: | ‰ | ||||||
| Enter ppm: | ppm | ||||||
| Enter ppb: | ppb | ||||||
| Enter ppt: | ppt | ||||||
| Enter molar concentration (molarity): | c(mol/L) | = | mol/L | ||||
| Enter solute molar mass: | M(g/mol) | = | g/mol | ||||
| Enter milligrams per liter: | C(mg/L) | = | mg/L | ||||
| Enter water temperature: | T(ºC) | = | ºC | ||||
| Enter parts per million: | C(mg/kg) | = | ppm | ||||
| Parts-per million (ppm) | Coefficient / Ratio | Percent (%) | Parts per billion (ppb) | Parts per trillion (ppt) | |||
| 1 ppm | 1×10-6 | 0.0001% | 1000 ppb | 1×106 ppt | |||
| 2 ppm | 2×10-6 | 0.0002% | 2000 ppb | 2×106 ppt | |||
| 3 ppm | 3×10-6 | 0.0003% | 3000 ppb | 3×106 ppt | |||
| 4 ppm | 4×10-6 | 0.0005% | 4000 ppb | 4×106 ppt | |||
| 5 ppm | 5×10-6 | 0.0005% | 5000 ppb | 5×106 ppt | |||
| 6 ppm | 6×10-6 | 0.0006% | 6000 ppb | 6×106 ppt | |||
| 7 ppm | 7×10-6 | 0.0007% | 7000 ppb | 7×106 ppt | |||
| 8 ppm | 8×10-6 | 0.0008% | 8000 ppb | 8×106 ppt | |||
| 9 ppm | 9×10-6 | 0.0009% | 9000 ppb | 9×106 ppt | |||
| 10 ppm | 1×10-5 | 0.0010% | 10000 ppb | 1×107 ppt | |||
| 20 ppm | 2×10-5 | 0.0020% | 20000 ppb | 2×107 ppt | |||
| 30 ppm | 3×10-5 | 0.0030% | 30000 ppb | 3×107 ppt | |||
| 40 ppm | 4×10-5 | 0.0040% | 40000 ppb | 4×107 ppt | |||
| 50 ppm | 5×10-5 | 0.0050% | 50000 ppb | 5×107 ppt | |||
| 60 ppm | 6×10-5 | 0.0060% | 60000 ppb | 6×107 ppt | |||
| 70 ppm | 7×10-5 | 0.0070% | 70000 ppb | 7×107 ppt | |||
| 80 ppm | 8×10-5 | 0.0080% | 80000 ppb | 8×107 ppt | |||
| 90 ppm | 9×10-5 | 0.0090% | 90000 ppb | 9×107 ppt | |||
| 100 ppm | 1×10-4 | 0.0100% | 100000 ppb | 01×108 ppt | |||
| 200 ppm | 2×10-4 | 0.0200% | 200000 ppb | 2×108 ppt | |||
| 300 ppm | 3×10-4 | 0.0300% | 300000 ppb | 3×108 ppt | |||
| 400 ppm | 4×10-4 | 0.0400% | 400000 ppb | 4×108 ppt | |||
| 500 ppm | 5×10-4 | 0.0500% | 500000 ppb | 5×108 ppt | |||
| 1000 ppm | 0.001 | 0.1000% | 1×106 ppb | 1×109 ppt | |||
| 10000 ppm | 0.010 | 1.0000% | 1×107 ppb | 1×1010 ppt | |||
| 100000 ppm | 0.100 | 10.0000% | 1×108 ppb | 1×1011 ppt | |||
| 1000000 ppm | 1.000 | 100.0000% | 1×109 ppb | 1×1012 ppt |
