Dilution Table for Hydrogen Peroxide

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.

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.

Hydrogen Peroxide is typically solid at 3% in stores. You can use it at that percentage as is.

Stores are selling out of 3% regular hydrogen peroxide during the 2020 pandemic, so this post shows how to dilute down higher concentrations which are easier to source in Canada and the US.

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%).

Personal Safety Equipment should be used! Goggles, gloves and protective clothing. (Source & Source).

Dilution Table – Dilute 35% Hydrogen Peroxide Down

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

Dilution Table – Dilute 34% Hydrogen Peroxide Down

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

Dilution Table – Dilute 29% Hydrogen Peroxide Down

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

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

Dilution Table – Dilute 10% Hydrogen Peroxide Down

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