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GrowScope
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Fertilizer calculator (per tank)

Doses of the selected fertilizers for a given water volume for one or several plants, within manufacturer limits.

Free (Free and Pro)

Open in the app

Also called

nutrient calculator · fertilizer calculator · calculate dose · how much per litre · dosage · mix · tank mix

Where it is

  1. Bottom menu → “Plants” → “🧮 Fertilizer calculator” block

The mobile and desktop versions are the same: the app runs at growscope.uk/app/ as a single column with a bottom menu of four tabs — “Today”, “Plants”, “Tent”, “Comparison”. Settings open from the avatar at the top right; the Archive opens from “Comparison”. On a computer the only difference is that features needing the phone’s camera, motion sensor or Bluetooth should be run from a phone.

Requirements

  • At least one plant and one fertilizer in the library

How to use it

  1. Expand the calculator.
  2. Select plants and fertilizers.
  3. Enter the water volume in litres (or “Fill in”).
  4. Use “Split between plants” if needed.

Result

Millilitres/grams of each fertilizer per tank; different base lines share one full strength.

If you can’t see it

  • “The calculation needs at least one plant and one fertilizer in the library.” — add what’s missing.

Direct link

https://growscope.uk/app/?open=feed-calculator — Opens the app on this screen. A direct link opens the app straight on the right screen (after sign-in and encryption unlock). For features that need a plant you can append &plant=<id>; without it the current plant is used.

How it works (documentation): Dose Guard: The Fertilizer Dosing Safety Layer

Related features

Checked against the app: · Machine-readable version for AI: /app-guide.json