690 ppm to mg/L

690 ppm = 690 mg/L

ppmmg/L
675 ppm675
680 ppm680
685 ppm685
690690
695 ppm695
700 ppm700
705 ppm705

690 ppm = 690 mg/L

Formula

1 ppm = 1 mg/L (aqueous, density ≈ 1 kg/L) · 1 ppb = 0.001 mg/L · 1% = 10,000 ppm