Fertigation Dose
Convert a ppm nutrient target into grams by volume.
About Fertigation Dose
Fertigation frequently works in parts per million, and converting a ppm target to grams for a given water volume uses a volume factor. Reading a target in ppm instead of guessing teaspoons makes feeding repeatable and keeps nutrient levels safe for the crop.
Formula
Fertigation Dose
Grams = ppm x gallons x 0.003785
- ppm
- Parts per million of nutrient in the finished water
Worked example
With the default values below, Fertigation Dose returns Nutrient Grams of 283.9. Change any input above and every figure here is recalculated in your browser.
Inputs used
- Irrigation volumeminimum 0 gal
- 500 gal
- Target nutrientminimum 0 ppm
- 150 ppm
Results
- Nutrient Grams
- 283.9 g
- Nutrient Ounces
- 10.01 oz
Step by step
- 1Values used
- 2Fertigation Dose
- 3Nutrient Grams= 283.9 g
- 4Nutrient Ounces= 10.01 oz
Assumptions and limits
- The result is derived only from the 2 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 Fertigation Dose calculated?
Grams = ppm x gallons x 0.003785 Fertigation frequently works in parts per million, and converting a ppm target to grams for a given water volume uses a volume factor.
Why does Fertigation Dose matter?
Reading a target in ppm instead of guessing teaspoons makes feeding repeatable and keeps nutrient levels safe for the crop.
What values do I need to enter?
This calculator takes 2 inputs: Irrigation volume, Target nutrient. The pre-filled defaults are a realistic starting point — replace them with figures from your own environment for a result you can act on.