PPM / PPT Dose Calculator

Universal dosing math. Use this for almost anything: “I want +X ppm/ppt — how much do I add?” or “I added X — what increase did that cause?”

Pond Volume (gallons)

Substance Purity (%)

Mode

Units

1 ppt = 1000 ppm

Desired Increase (ppm/ppt)

Amount Added (lbs)

Choose a mode and click “Calculate”.

Note: This is math only. It assumes full dissolution and a correct pond volume estimate.