calcs.homes
calcs.homes
Enter a dilution ratio (like 1:10) and how much total solution you want, and we'll split it into exact concentrate and water amounts.
Estimate only — always follow the product label's safety and dilution guidance.
A ratio like 1:10 means 1 part concentrate to 10 parts water — 11 total parts. We divide your total volume by the combined parts to find the size of one part, then multiply that by the concentrate parts and water parts separately — concentrate needed plus water needed always adds back up to your total volume.
Working from parts rather than a fixed percentage is how dilution ratios are written on most product labels, since it scales cleanly to any batch size without a percent-to-volume conversion. Getting the ratio right matters beyond just stretching a bottle further — under-diluting cleaning chemicals wastes concentrate and can damage surfaces, while over-diluting leaves a solution too weak to do its job, so always defer to the product label over a general-purpose ratio.
It means 1 part concentrate mixed with 10 parts water, for 11 total parts. Enter those two numbers above along with how much finished solution you want.
Enter 1 for concentrate parts and 4 for water parts. For every 1 part concentrate, add 4 parts water — for a 1 fl oz (30 mL) dose, that's 4 fl oz (120 mL) of water.