Free tool

Snow Foam Dilution Calculator

Work out exactly how much product and water to mix for your foam lance, pump sprayer or spray bottle. Pick a container and a ratio, and the amounts update instantly.

1. Container size
2. Dilution ratio (product : water)
167ml product
833ml water

Always check the dilution on the product label first. Ratios are product to water, so 1:5 means 1 part product to 5 parts water.

How to use the calculator

Pick the container you're filling: a 1L foam lance bottle, a 2L pump sprayer, a 500ml spray bottle or a 5L container. Or type in any size in millilitres. Then pick the dilution ratio from the product label. The calculator shows how much product to add and how much water to top up with.

What does a dilution ratio like 1:10 mean?

A ratio is product to water. 1:10 means 1 part product to 10 parts water, so the mix is 11 parts in total. In a 1.1 litre mix, that's 100ml of product and 1,000ml of water. The bigger the second number, the weaker the mix.

People often get this wrong by putting 1 part product in 10 parts of the total. That makes a slightly stronger mix than the label intends. The calculator does it the right way round for you.

Snow foam dilution in a foam lance

For Yeti Pro pH-neutral snow foam, mix around 1:5 with water in your foam lance bottle for best results. In a 1L lance bottle, that's about 167ml of Yeti Pro topped up with about 833ml of water. Most lances, including the JAWS Big Mouth, also have a mixing dial, which further dilutes the mix with water from the pressure washer, so use the dial to fine-tune how thick the foam comes out.

Diluting a citrus pre-wash

Concentrates like Cyclops Pro citrus pre-wash are diluted to suit the job: stronger for heavy grime, weaker for a light clean. Use the ratio on the bottle, then use the calculator to work out the amounts for your spray bottle or pump sprayer. Not sure whether you need a pre-wash, snow foam or both? Read citrus pre-wash vs snow foam.

Dilution calculator FAQs

Do I add the product or the water first?

Measure the product into the bottle first, then top up with water. It's easier to get the amount right, and you're less likely to over-foam the bottle while filling it.

Can I make my snow foam stronger than the label says?

Stick to the label. A stronger mix wastes product and isn't always better: dwell time and coverage matter as much as strength.

Can I use a pump sprayer instead of a foam lance?

Yes, with a sprayer that has a foaming nozzle. The foam is wetter, but it still does the pre-wash job. See can you snow foam without a pressure washer?

Is buying 5 litres cheaper?

Usually, yes. Larger sizes work out cheaper per litre. See our 5 litre products.