Dilution Ratio Calculator
Dilution Ratio Calculator
This dilution ratio calculator determines correct proportions when mixing a concentrated solution with a diluent (usually water).
Dilution Ratio Formula
The formula for calculating dilution ratios is:
Ratio = Parts Concentrate : Parts DiluentFor example, in a 1:30 ratio:
- 1 represents one part of the concentrated solution
- 30 represents thirty parts of water
- Total mixture = 31 parts (1 + 30)
To calculate the actual volume needed: Final Volume = (Concentrate Volume × Total Parts) ÷ Concentrate Parts
Dilution Ratio Chart
| Dilution Ratio (Concentrate : Water) | Amount of Concentrate (per gallon of water) | Total Volume (Concentrate + Water) |
|---|---|---|
| 1:1 | 1 gallon | 2 gallons |
| 1:2 | 0.5 gallon (64 oz) | 1.5 gallons |
| 1:4 | 0.25 gallon (32 oz) | 1.25 gallons |
| 1:5 | 25.6 oz | 1.2 gallons |
| 1:10 | 12.8 oz | 1.1 gallons |
| 1:15 | 8.5 oz | 1.06 gallons |
| 1:20 | 6.4 oz | 1.03 gallons |
| 1:25 | 5.1 oz | 1.02 gallons |
| 1:30 | 4.3 oz | 1.01 gallons |
| 1:40 | 3.2 oz | 1.008 gallons |
| 1:50 | 2.6 oz | 1.005 gallons |
| 1:100 | 1.28 oz | 1.001 gallons |
How to Calculate the Dilution Ratio?
To calculate a dilution ratio, first identify the starting concentration and your desired final concentration.
Let’s say you need 1 gallon of a cleaning solution at a 1:10 ratio:
- Divide 1 gallon by 11 (1 part concentrate + 10 parts water)
- This gives you 11.6 ounces of concentrate
- The remaining 116.4 ounces should be water
Starting with a window cleaner using a 1:8 ratio, we begin with one cup of solution needed. The calculation shows we’ll need 1 ounce of concentrate combined with 8 ounces of water, producing 9 ounces of ready-to-use cleaning solution.
For a plant fertilizer requiring a 1:100 ratio, preparing a one-gallon mix becomes straightforward. The calculations indicate 1.28 ounces of concentrate should be mixed with 126.72 ounces of water to create the full 128 ounces (one gallon) of properly diluted fertilizer.
Consider a disinfectant with a 1:32 ratio for a two-quart batch. The proper mixture requires 2 ounces of concentrate combined with 62 ounces of water, yielding 64 ounces (two quarts) of properly diluted disinfectant solution.
What Does a 5:1 Dilution Ratio Mean?
A 5:1 dilution ratio represents the proportional relationship between water and concentrate in your mixture. When working with a 5:1 ratio, you’ll combine 5 parts water with 1 part concentrate to create your final solution.
What is Dilution Ratio 1 to 10?
You’ll combine one part concentrate with ten parts water. This creates a final solution containing eleven total parts. In practical terms, if you’re measuring in milliliters, using 10ml of concentrate requires 100ml of water, giving you 110ml of usable solution.
What is the 1/200 Dilution Ratio?
A 1:200 dilution represents one of the more precise mixing ratios commonly used in laboratory and specialized cleaning applications. This ratio means combining 1 part concentrate with 199 parts water. For practical application, creating a liter of solution would require 5ml of concentrate mixed with 995ml of water.
References
National Institute of Standards and Technology https://www.nist.gov/pml/weights-and-measures