Concentration - Solution conversion

Convert Part/million (ppm) to Part/billion (ppb)

1 part/million (ppm) (ppm) equals 1,000 part/billion (ppb) (ppb). Enter any value below to convert from ppm to ppb.

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1 ppm = 1,000 ppb

All Concentration - Solution units

From 1 ppm
UnitValue
Kilogram/liter kg/L 0.000001
Gram/liter g/L 0.001
Milligram/liter mg/L 1
Part/million (ppm) ppm 1
Part/billion (ppb) ppb 1,000
Grain/gallon (US) gr/gal (US) 0.0584178313
Grain/gallon (UK) gr/gal (UK) 0.0701568926
Pound/gallon (US) lb/gal (US) 0.0000000083
Pound/gallon (UK) lb/gal (UK) 0.00000001
Pound/million gallon (US) lb/Mgal (US) 0.0083454045
Pound/cubic foot lb/ft³ 0.0000000624
Pound/cubic inch lb/in³ 0
Kilogram/cubic meter kg/m³ 0.001
Gram/cubic meter g/m³ 1
Milligram/cubic meter mg/m³ 1,000
Recent conversions
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Formula

ppm to ppb conversion formula

Use this relationship for a direct conversion:

ppb = ppm x 1,000

Worked example

2 ppm = 2,000 ppb.

SI relationships follow the cited reference. Conventional and domain-specific factors use the established ConvertWin factor inventory; verify safety-critical work against the governing standard.

Quick reference

Part/million (ppm) to Part/billion (ppb) table

Part/million (ppm) (ppm)Part/billion (ppb) (ppb)
0.0110
0.1100
11,000
22,000
55,000
1010,000
2525,000
5050,000
100100,000
1,0001,000,000

From unit

About the part/million (ppm)

Part/million (ppm) (ppm) is a unit of Concentration - Solution. 1 ppm = 1e-6 kg/L

Symbol: ppm

To unit

About the part/billion (ppb)

Part/billion (ppb) (ppb) is a unit of Concentration - Solution. 1 ppb = 1e-9 kg/L

Symbol: ppb

Keep converting

Related conversions

Part/billion (ppb) to Part/million (ppm)Reverse this conversion Part/million (ppm) to Kilogram/literppm to kg/LPart/million (ppm) to Gram/literppm to g/LPart/million (ppm) to Milligram/literppm to mg/L

Source

Conversion standard

The SI framework is checked against NIST Guide for the Use of the International System of Units; conventional factors come from the extended factor inventory. Calculations use full internal precision before display rounding.

View the complete concentration - solution converter

Questions

ppm to ppb FAQ

How do you convert part/million (ppm) to part/billion (ppb)?

Use the formula ppb = ppm x 1,000. 1 part/million (ppm) (ppm) equals 1,000 part/billion (ppb) (ppb).

Is the ppm to ppb conversion exact?

SI relationships follow the cited reference. Conventional and domain-specific factors use the established ConvertWin factor inventory; verify safety-critical work against the governing standard.