How to Dilute 35%, 34% or 29% Hydrogen Peroxide (H202) Down to 3% and 1%
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Personal Safety Equipment should be used!
Goggles, gloves and protective clothing. (Source & Source).
Dilution Table
Dilute 35% Hydrogen Peroxide
1 part 35% H2O2 to 1 part water (math is 35/2) = 17.5% Hydrogen Peroxide
1 part 35% H2O2 to 2 parts water is 35/3 = 11.7% Hydrogen Peroxide
1 part 35% H2O2 to 3 parts water is 35/4 = 8.75% Hydrogen Peroxide
1 part 35% H2O2 to 4 parts water is 35/5 = 7% Hydrogen Peroxide
1 part 35% H2O2 to 5 parts water is 35/6 = 5.83% Hydrogen Peroxide
1 part 35% H202 to 6 parts water is 35/7 = 5% Hydrogen Peroxide
1 part 35% H202 to 7 parts water is 35/8 = 4.4% Hydrogen Peroxide
1 part 35% H202 to 8 parts water is 35/9 – 3.9% Hydrogen Peroxide
1 part 35% H202 to 9 parts water is 35/10 = 3.5% Hydrogen Peroxide
1 part 35% H202 to 10 parts water is 35/11 = 3.18% Hydrogen Peroxide
1 part 35% H202 to 13 parts water is 35/14 = 2.5% Hydrogen Peroxide
1 part 35% H202 to 34 parts water is 35/35 = 1% Hydrogen Peroxide
1 part 35% H202 to 69 parts water is 35/70 = 0.5% Hydrogen Peroxide
Another way to make 1 gallon of 3% Hydrogen Peroxide: Mix 1 and a quarter cup of 35% HP with 14 and three quarter cups of water.
Dilution Table
Dilute 34% Hydrogen Peroxide
1 part 34% H202 to 4 parts water = 6.8% Hydrogen Peroxide
1 part 34% H202 to 4.5 parts water = 6% Hydrogen Peroxide
1 part 34% H202 to 8 parts water = 3.7% Hydrogen Peroxide
1 part 34% H202 to 9 parts water = 3.4 % Hydrogen Peroxide
1 part 34% H202 to 10 parts water = 3% Hydrogen Peroxide
Make 1 gallon of 3% Hydrogen Peroxide: Mix just a touch under 1.5 cups 34% HP with 14.5 cups of water.
Dilution Table
Dilute 29% Hydrogen Peroxide
1 part 29% to 1 part water = 14.5% Hydrogen Peroxide
1 part 29% to 2 parts water = 9.6% Hydrogen Peroxide
1 part 29% to 3 parts water = 7.25% Hydrogen Peroxide
1 part 29% to 4 parts water = 5.8% Hydrogen Peroxide
1 part 29% to 8 parts water = 3.2% Hydrogen Peroxide
1 part 29% to 9 parts water = 2.9% Hydrogen Peroxide
How to Make a Gallon of 3% Hydrogen Peroxide: Mix 1 cup, 9 tablespoons, and 2 teaspoons of 29% HP with 14 cups, 6 tablespoons, and 1 teaspoon of water.
Dilution Table
Dilute 12% Hydrogen Peroxide Down
1 part 12% to 1 part water (12/2) = 6% Hydrogen Peroxide
1 part 12% to 3 part water (12/4) = 3% Hydrogen Peroxide
1 part 12% to 11 part water (12/12) = 1% Hydrogen Peroxide
Make 1 gallon of 3% Hydrogen Peroxide: Mix 4 cups of 12% HP with 12 cups of water.
Dilution Table
Dilute 10% Hydrogen Peroxide
1 part 10% to 2 part water (10/3) = 3.3% Hydrogen Peroxide
1 part 10% to 2.5 parts water (10/3.5) = 2.85% Hydrogen Peroxide
How to make a gallon of 3% Hydrogen Peroxide: Mix 4.5 cups of 10% Hydrogen Peroxide with just under 11.5 cups of water.
Non-Toxic Disinfectant for Viruses
In order to kill viruses, the CDC recommends three different options. The least toxic and safest one for most people is hydrogen peroxide at at least 0.5% left on the surface for one minute. Alcohol is also safe for many people to use. Source
Where to Buy Hydrogen Peroxide During the Pandemic
You can find higher concentrations at hydroponic stores and sometimes at gardening stores and hardware stores.
You may be able to find hydrogen peroxide at 29% on Amazon, if they are not sold out.
The next place I would look is online hydroponic stores. Search “buy 29% hydrogen peroxide hydroponic”.
You can also find some concentrations at beauty supply stores (usually 12%).
Rakesh Kumar says
Hi, we are a non profit organisation working as an eye care service provider. we have to disinfect the spectacle frames used by our patients during the selection of frame. Can we use Hydrogen Peroxide to disinfect the spectacle frames, Also we have 6.5% hydrogen peroxide but we require 0.5%. How can we dilute it.
Thanks
Koran Lanier-newman says
Can you take hydrogen peroxide with blood pressure meds and kidney disease?
Corinne says
The table is meant to be dilution for cleaning with HP.
Bill says
Hi
How much water and salt do I use to dilute 3% Hydrogen Peroxide to 1%?
I’m needing to use in my neubulizer.
Thank you
Mike says
Hi,
Just want to ask so that I have got it correct:
If I put 1dl of 10% Hydrogen Peroxide in a glas and then add 2dl distilled water I will get a concentration of 3.3% Hydrogen peroxide, correct? (1 part 10% to 2 part water (10/3) = 3.3% Hydrogen Peroxide).
There is a bottle available where I live that is 9.5% concentration of Hydrogen peroxide so seem perfect. It is cheaper to buy the 9.5% bottle than the 3% bottle since it is basically 3 times more hydrogen peroxide in the 9.5% bottle (only $2.79 difference).
Thanks
Corinne says
Yes exactly.
L says
OH! The best website I have found to purchase 35% HP is http://www.purehealthdiscounts.com. Comes wonderfully packaged, VERY price conscious.
L says
Thank you so very very much! Simplest, best information about this that I have seen!
Bhaskar Ramu says
Can you add dilution table for 10-12% Hydrogen Peroxide as well. Thanks
Byron says
Dilute means basically to reduce strentgh. You can not go from 10% to 12% by mixing with water
Dylan says
I believe he’s asking for dilution tables for 10% and 12% as well. Just a guess though.
dylan says
nevermind i see its already there!
Lexi Rodrigo says
Just what I needed. Thank you very much!