Case 1
- Concentrate parts
- 1
- Water parts
- 10
- Total volume to make
- 32
2.909
Open with these valuesDilution Ratio Calculator
2.909units
Result: 2.909 unitsA 1:10 ratio here means one part concentrate to ten parts water — eleven parts in total, not ten. So 32 units of finished mix take 32 × 1/11 = 2.909 units of concentrate and 29.091 of water. Enter any unit you like; the answer comes back in the same one.
The numbers at a glance
Held fixed: Concentrate parts 1.00, Water parts 10.00.
| Total volume to make | Result |
|---|---|
| 10.00 | 0.909 |
| 20.00 | 1.818 |
| 30.00 | 2.727 |
| 32.00Your value | 2.909 |
| 40.00 | 3.636 |
| 50.00 | 4.545 |
| 60.00 | 5.455 |
Worked examples
Case 2
- Concentrate parts
- 1
- Water parts
- 4
- Total volume to make
- 20
4.000
Open with these valuesCase 3
- Concentrate parts
- 2
- Water parts
- 8
- Total volume to make
- 50
10.000
Open with these valuesHow it's calculated
concentrate = volume × parts ÷ (parts + water parts)
- StepEnter the first number of the ratio as the concentrate parts.
- StepEnter the second number as the parts of water.
- StepEnter how much finished mix you want, in any one unit.
- ResultRead the concentrate; the rest of the volume is water.
Reference table
| Concentrate, water, volume | Total parts | Concentrate |
|---|---|---|
| 1, 4, 20 | 5 | 4 |
| 1, 10, 32 | 11 | 2.909 |
| 1, 32, 128 | 33 | 3.879 |
| 2, 8, 50 | 10 | 10 |
| 1, 0, 10 | 1 | 10 |
Questions
Does 1:10 mean 10 total parts or 11?
This calculator reads 1:10 as one part concentrate to ten parts water, giving eleven parts in total — the usual reading for cleaning and chemical dilutions. Some fields instead mean one part made up to ten total, which is a stronger mix. Check the product label when the difference matters.
How do you calculate a dilution ratio?
Add the parts to get the total, then split the target volume in proportion. For 1:10 the total is eleven parts, so the concentrate is one eleventh of the volume. To make 32 units that is 2.909 units of concentrate and 29.091 of water.
What is the dilution factor?
It is the total parts divided by the concentrate parts. A 1:10 ratio has a dilution factor of eleven, so the mixed solution is one eleventh the strength of the concentrate.
How do I turn the ratio into a percentage?
Divide the concentrate parts by the total parts. For 1:10 that is 1 ÷ 11, about 9.1 % concentrate; for 1:4 it is 1 ÷ 5, exactly 20 %.
Do the units matter?
The ratio itself is unitless — 1:10 is 1:10 in ounces, millilitres or gallons. The only rule is that concentrate and water are measured in the same unit, and the result comes back in whatever unit you used for the total volume.
Sources and last check
Information, not professional advice.