Cleaning Solution Dilution Calculator

A 1:32 ratio means 1 part concentrate combines with 32 parts water, which is 33 total parts, not 32 — so the concentrate's share of the finished solution is 1/33, not 1/32. This calculator adds 1 to whatever ratio number you enter to get total parts, then divides your target solution volume by that total to isolate the concentrate share, with everything else becoming water.

It won't be accurate at all — the calculator hardcodes $10 per 32 oz of concentrate ($0.3125/oz) and prices only the fraction of your gallon that's actual concentrate, treating water as free. If your bottle costs more or is a different size, the real cost per gallon scales linearly with the price-per-ounce you actually pay, so recompute it by hand using your own bottle's cost divided by its ounces.

Concentrate needed is how much you use for a single target batch; batches from one bottle is your whole bottle's concentrate volume divided by that per-batch amount, telling you how many times you can repeat that exact batch size before the bottle is empty. It's the number that actually answers 'how many bottles do I need to stock for this job,' since a single concentrate-needed figure alone doesn't tell you about supply runout.

No — it only does the arithmetic once you've supplied a ratio, it doesn't know the chemistry of your specific product or surface. The correct ratio always comes from the product label, since going too weak can drop a disinfectant below its labeled contact/kill time or leave a degreaser ineffective, while going too strong wastes concentrate and can damage surfaces or leave residue.