PPB to PPM Converter

Convert parts per billion (ppb) to parts per million (ppm). 1,000 ppb = 1 ppm.

ppb

PARTS PER MILLION

5 ppm

IN %

0.0005%

IN mg/L

5

FORMULA

ppm = ppb / 1,000

πŸ’‘ How to Convert PPB to PPM

What Is PPB?

Parts per billion (ppb) is a unit used to express extremely small concentrations β€” one part per one billion parts of the total. It is commonly used for measuring trace contaminants in drinking water, air pollutants, and environmental samples where even minute quantities can have significant effects.

How to Convert PPB to PPM

PPB to PPM Formula

ppm = ppb / 1,000

Since 1 ppm = 1,000 ppb, dividing ppb by 1,000 gives the equivalent value in ppm.

EPA Drinking Water Standards

The EPA sets maximum contaminant levels for drinking water in ppb: lead is 15 ppb (0.015 ppm), arsenic is 10 ppb (0.010 ppm), and mercury is 2 ppb (0.002 ppm). Use our PPM to PPB converter for the reverse conversion.

πŸ”— Related Calculators

PPM to PPB ConverterConvert parts per million (ppm) to parts per billion (ppb). 1 ppm = 1,000 ppb.PPM CalculatorCalculate parts per million (ppm) from a part-to-whole ratio. Used in water quality, air quality, and manufacturing.PPM ConverterUniversal PPM converter β€” convert between ppm, percent (%), ppb, and mg/L in one tool with quick reference table.