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Dilution Table for Hydrogen Peroxide

March 18, 2020 by Corinne 13 Comments

How to Dilute 35%, 34% or 29% Hydrogen Peroxide (H202) Down to 3% and 1%

This post contains affiliate links. Upon purchase, I earn a commission at no extra cost to you.

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%).

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Filed Under: Mold Avoidance

Reader Interactions

Comments

  1. Rakesh Kumar says

    December 17, 2020 at 11:41 pm

    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

    Reply
  2. Koran Lanier-newman says

    November 18, 2020 at 7:08 pm

    Can you take hydrogen peroxide with blood pressure meds and kidney disease?

    Reply
    • Corinne says

      November 18, 2020 at 7:28 pm

      The table is meant to be dilution for cleaning with HP.

      Reply
  3. Bill says

    November 13, 2020 at 4:31 pm

    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

    Reply
  4. Mike says

    November 10, 2020 at 7:40 pm

    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

    Reply
    • Corinne says

      November 10, 2020 at 8:48 pm

      Yes exactly.

      Reply
  5. L says

    October 21, 2020 at 7:21 am

    OH! The best website I have found to purchase 35% HP is http://www.purehealthdiscounts.com. Comes wonderfully packaged, VERY price conscious.

    Reply
  6. L says

    October 21, 2020 at 7:19 am

    Thank you so very very much! Simplest, best information about this that I have seen!

    Reply
  7. Bhaskar Ramu says

    October 4, 2020 at 7:18 pm

    Can you add dilution table for 10-12% Hydrogen Peroxide as well. Thanks

    Reply
    • Byron says

      November 8, 2020 at 12:31 pm

      Dilute means basically to reduce strentgh. You can not go from 10% to 12% by mixing with water

      Reply
      • Dylan says

        February 10, 2021 at 3:42 am

        I believe he’s asking for dilution tables for 10% and 12% as well. Just a guess though.

        Reply
        • dylan says

          February 10, 2021 at 3:43 am

          nevermind i see its already there!

          Reply
  8. Lexi Rodrigo says

    July 25, 2020 at 10:41 am

    Just what I needed. Thank you very much!

    Reply

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Hi, I’m Corinne, I am a Certified Building Biologist Practitioner with 6 years of experience helping people create healthy homes.

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