PPM to PPB Converter

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

ppm

PARTS PER BILLION

5,000 ppb

IN %

0.0005%

FORMULA

ppb = ppm Γ— 1,000

πŸ’‘ How to Convert PPM to PPB

PPM to PPB Conversion

PPM to PPB Formula

ppb = ppm Γ— 1,000

Since 1 ppm equals 1,000 ppb, simply multiply by 1,000 to convert. Conversely, 0.001 ppm = 1 ppb.

When to Use PPB vs. PPM

PPB is used when dealing with extremely low concentrations, such as trace contaminants in drinking water or air pollutants. For example, the EPA limit for lead in drinking water is 15 ppb (0.015 ppm). Use our PPB to PPM converter for the reverse conversion.

πŸ”— Related Calculators

PPB to PPM ConverterConvert parts per billion (ppb) to parts per million (ppm). 1,000 ppb = 1 ppm.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.