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Dilution calculator, over-feed fix, and volume calculator
Stock Concentration (ppm)
Target Concentration (ppm)
Reservoir Volume
Add this much stock solution:
0.4 gallons
Fill the remaining 4.6 gallons with water.
10000 × V1 = 800 × 5 → V1 = 0.400
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Create Free Account →The dilution equation C1\×V1 = C2\×V2 is the fundamental formula for mixing concentrated solutions to a target strength. C1 is your stock concentration, V1 is the volume of stock to add, C2 is your target concentration, and V2 is your final volume.
What is C1V1 = C2V2?
This is the dilution equation. C1 is stock concentration, V1 is the volume of stock to add, C2 is your target concentration, and V2 is your final volume. It lets you calculate how much concentrate to add to reach a target strength.
I accidentally over-fed, what do I do?
Use the Over-Feed Fix tab. Enter your current PPM, target PPM, and reservoir volume. It will calculate how much fresh water to add to dilute to the correct strength.
How do I calculate reservoir volume from dimensions?
Use the Volume Calculator tab. Enter the shape and dimensions of your container. For round containers, measure the diameter and depth. For rectangular, measure length, width, and height.
Theme
Width
Height (px)
<iframe src="https://growmeridian.com/embed/reservoir-calculator" width="100%" height="500" frameborder="0" style="border-radius:12px;" title="reservoir calculator"></iframe>
📡 Use via API
Access this calculator programmatically with our REST API