Hydroponic Nutrient
Nutrient dose to raise a reservoir to a target EC.
About Hydroponic Nutrient
The EC shortfall times the tank's liters and a dose factor gives grams of nutrient concentrate to add. Nutrient strength must track plant demand or roots burn or starve, so dosing against EC keeps it in range.
Formula
Hydroponic Nutrient
Dose (g) = (target - current) EC x dose factor x liters
- 640
- Common EC-to-PPM conversion factor
Worked example
With the default values below, Hydroponic Nutrient returns EC to Add of 0.60. Change any input above and every figure here is recalculated in your browser.
Inputs used
- Reservoirminimum 0.1 gal
- 20 gal
- Current ECminimum 0 mS/cm
- 1.2 mS/cm
- Target ECminimum 0 mS/cm
- 1.8 mS/cm
- Dose per L per mSminimum 0.01 g
- 0.75 g
Results
- EC to Add
- 0.60 mS/cm
- Nutrient Dose
- 34.1 g
- Approx. Target PPM
- 1,152
Step by step
- 1Values used
- 2Hydroponic Nutrient
- 3EC to Add= 0.60 mS/cm
- 4Nutrient Dose= 34.1 g
- 5Approx. Target PPM= 1,152
Assumptions and limits
- The result is derived only from the 4 inputs listed above. Anything not among them is not part of the calculation.
- In particular, this calculator does not take inflation, tax, fees or charges or compounding frequency into account.
- Figures are rounded for display to 2 decimal places, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.
How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.
Frequently Asked Questions
How is Hydroponic Nutrient calculated?
Dose (g) = (target - current) EC x dose factor x liters The EC shortfall times the tank's liters and a dose factor gives grams of nutrient concentrate to add.
Why does Hydroponic Nutrient matter?
Nutrient strength must track plant demand or roots burn or starve, so dosing against EC keeps it in range.
What values do I need to enter?
This calculator takes 4 inputs: Reservoir, Current EC, Target EC, Dose per L per mS. The pre-filled defaults are a realistic starting point — replace them with figures from your own environment for a result you can act on.