Convert 670 PPM to mg/kg | 670 ppm = 670 mg/kg

Quick Answer: 670 ppm = 670 mg/kg

Parts per million
=
Milligrams per kilogram
Conversion Result
670 ppm = 670 mg/kg

PPM and mg/kg are identical by definition

670 ppm = 670 mg/kg

Explanation:

  1. By definition: 1 ppm = 1 part per 1,000,000 parts = 1 mg per 1 kg
  2. Therefore: 670 ppm = 670 mg/kg (always equal)

Similar PPM to mg/kg Conversions

Values close to 670 ppm for quick reference:

PPM mg/kg Application context
170 ppm 170 mg/kg
270 ppm 270 mg/kg
370 ppm 370 mg/kg
470 ppm 470 mg/kg
570 ppm 570 mg/kg
670 ppm 670 mg/kg
770 ppm 770 mg/kg
870 ppm 870 mg/kg
970 ppm 970 mg/kg
1,070 ppm 1,070 mg/kg
1,170 ppm 1,170 mg/kg

See Also

Frequently Asked Questions

How much is 670 ppm in mg/kg?

670 ppm equals 670 mg/kg. PPM and mg/kg are always equal by definition.

How do I convert 670 ppm to mg/kg?

670 ppm = 670 mg/kg. No calculation needed — ppm and mg/kg are the same unit expressed differently.

Are ppm and mg/kg always equal?

Yes, always. 1 ppm = 1 mg/kg by definition. Unlike mg/L (which depends on solution density), mg/kg is a mass/mass ratio identical to ppm in all cases.

All unit conversions on CoolConversion use conversion factors defined or documented by internationally recognised standards bodies (such as ISO and NIST), including both SI and non-SI units.

Conversion factors verified against NIST, BIPM Based on SI definitions (BIPM). Last reviewed: March 2026
Tiago Fernandes Reviewed by Tiago Fernandes