Mix Ratio & Dilution Calculator: Parts A to B
Any A:B mix or dilution (1:10 cleaner, 4:1 paint): each part for the total you want, or B for the A you have.
Part A (concentrate), parts
1:10 = 1 part A to 10 parts B, 11 parts in all.
Total (fl oz)
32 fl oz spray bottle, 1 gal, 5 L, 2 cups.
2.9 fl oz (86 ml)
Part B
29.1 fl oz (860 ml)
Part A share of the mix (1:10)
9.1 %
Estimates. Your product’s data sheet and label win.
How it works
Enter the ratio as two numbers, then the total you want or the Part A you have. You get each part in fl oz, cups, gallons or ml and liters.
Example: a cleaner at 1:10 for a 32 fl oz spray bottle: 32 ÷ 11 = 2.9 fl oz of concentrate and 29.1 fl oz of water.
Have 4 fl oz of concentrate and a 1:16 label? Add 4 × 16 = 64 fl oz of water, 68 fl oz in all.
Frequently asked questions
What does a 1:10 ratio mean?
One part of A to ten parts of B, eleven parts in all. For 1 gallon (128 fl oz): 128 ÷ 11 = 11.6 fl oz of A and 116.4 fl oz of B.
How do I mix 4:1?
Four parts A to one part B. For 1 quart (32 fl oz): 32 × 4 ÷ 5 = 25.6 fl oz of A and 6.4 fl oz of B.
Is 1:10 the same as 10 %?
No. 1:10 is 1 part in 11, about 9.1 % of the mix. A 10 % mix is 1:9.