Dilution Formula

Dilution Formula

Dilution Chart

Dilution Ratio
Ounces/Gallon
Percent
1:1 128 50%
1:2 64 33%
1:4 32 20%
1:6 21.3 14.3%
1:8 16 11.1%
1:10 12.8 9.1%
1:12 10.7 7.7%
1:16 8 5.8%
1:20 6.4 4.8%
1:24 5.3 4.0%
1:32 4 3.0%
1:40 3.2 2.4%
1:50 2.5 2.0%
1:64 2 1.5%
1:80 1.6 1.2%
1:96 1.3 1.0%
1:128 1 0.78%
1:170 0.75 0.58%
1:256 0.5 0.39%
1:512 0.25 0.19%

Active Parts Per Million

Commonly used for Disinfectants

Step 1: Add all active ingredients together on label
Step 2: Multiply by 10,000
Step 3: Divide the result by the dilution rate

Example:
(Using KennelSol HC 1:256 dilution Quat)
Step 1: 10.14% + 6.76% = 16.90% active
Step 2: 10,000 x 16.9 = 169,000
Step 3: 169,000 ÷ 257 = 658 ppm active Quat

Diluted Cost Per Gallon

Divide dilution into cost per gallon

Example:
(1:128 dilution selling at $13.40 per gallon)
$13.40 ÷ 129 = 0.1038
Answer: 10.4 ¢ per diluted gallon

Dilution Ratio

Divide ounces per gallon into 128

Example:
(4 ounces per gallon dilution) 128 ÷ 4 = 32
Answer: 1:32 ratio

Ounces Per Gallon

Divide dilution ratio into 128

Example:
(1:32 dilution)
128 ÷ 32 = 4
Answer: 4 ounces per gallon

Hard Water Measurements

Hard water contains ions of magnesium and calcium.

1 grain of hard water = 18 ppm hard water

Example:
(450 ÷ 18 = 25)
450 ppm hard water = 25 grain


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