Ozone dosage rates into water flows

Calculate ozone dosage rates into water based on your water flow rate (GPM) and desired ozone dosage rate (ppm) to determine the required ozone production rate for your system (g/hr)

(GPM x 3.78 x 60 x ppm) / 1,000 = g/hr ozone

This provides ozone dosage rates into water. Actual dissolved ozone levels in water will be different as no ozone system is 100% efficient at dissolving and keeping ozone in water.

Ozone Dosage Rate Calculator

Calculate ozone dosage rates into water based on your water flow rate (GPM) and ozone generator output (g/hr) to determine the dosage rate of water achieved with your water flow rate and ozone generator.

(g/hr x 1,000) / (GPM x 3.78 x 60) = ppm

This provides ozone dosage rates into water.  Actual dissolved ozone levels in water will be different as no ozone system is 100% efficient at dissolving and keeping ozone in water.

Calculate ozone output from LPM and g/m3 ozone concentration)

((LPM x 60) x 0.001) x g/m3 = g/hr

This calculation works the same regardless of feed-gas type (air or oxygen) as a mass (grams) is used in the calculation, therefore it is a direct calculation.

Calculate ozone output from LPM and % by weight, Oxygen feed-gas

((LPM x 0.001) x 60) x (14.3 x % by weight)

This calculates ozone output in g/hr when using oxygen feed-gas and % by weight ozone concentration.

Calculate ozone output from LPM and % by weight, Air feed-gas.

((LPM x 0.001) x 60) x (12.8 x % by weight)

This calculates ozone output in g/hr when using dry-air feed-gas and % by weight ozone concentration.

Convert common ozone output units

lb/day = pounts per day

kg/hr = killograms/hour

Ozone Concentration in air by volume

1 mg/l = 1 g/m3 = 1 ug/ml = 467 ppm O3

1 ppm = 2.14 mg/m3 O3

100 pphm (parts per hundred million = 1 ppm (parts per million)

This calculator is only used for ozone concentrations values by volume. See below for by weight conversions.

Ozone Concentration in air by weight

100 g/m3 = 7.8% O3

1% = 12.8 g/m3 O3

1% = 7,284 ppm O3

This calculator is used for converting ozone concentration units when ozone is measured in air. For oxygen use the calculaotor below.

Ozone Concentration in oxygen by weight

100 g/m3 = 6.99% O3

1% = 14.3 g/m3 O3

1% = 6,520 ppm O3

This calculaotr is used for converting ozone concentration units when ozone is measured in oxygen. For air, use the calcultaor above.

Convert common flow values

SCFH = Standard Cubic Feet per Hour

m3/hr = Cubic Meters per Hour

Corrected pressure for pressurized flow meter

Corrected Flow = Measured flow X √ (PSI +14.7) / 14.7 

Calculate pressure in your float style flow-meter using this calculation. When flow-meters are under pressure the flow must be calculated for the pressure to provide accurate flow readings.

Pressure Calculator

Convert any pressure value by entering value in the blank and pressing Convert.

Physical Properties of Ozone