Calculators

Hydroponic Tools & Calculators

Free precision calculators for every aspect of your hydroponic grow. Mix nutrients, convert EC/PPM, optimise lighting, and diagnose your environment.

Nutrients

Calculate exact nutrient amounts for your reservoir based on volume and concentration ratios.

▸ Inputs: Reservoir size, Nutrient A dosage, Nutrient B dosage

▸ Outputs: Total nutrient required, Step-by-step mixing instructions

Setup

Calculate the volume of your reservoir in litres or gallons based on container dimensions.

▸ Inputs: Container dimensions, Shape

▸ Outputs: Volume in litres, Volume in US/UK gallons

Nutrients

Convert between Electrical Conductivity (EC) and PPM across 500, 640, and 700 TDS scales.

▸ Inputs: EC value or PPM value, TDS scale

▸ Outputs: Converted values across all scales

Nutrients

Estimate how much pH Up or pH Down solution is needed to reach your target pH.

▸ Inputs: Current pH, Target pH, Reservoir volume

▸ Outputs: Estimated pH Up/Down amount

Lighting

Determine the recommended coverage area for your grow light based on wattage and hanging height.

▸ Inputs: Grow area, Light wattage, Hanging height

▸ Outputs: Recommended coverage, Coverage efficiency

Lighting

Calculate Daily Light Integral from PPFD and your light schedule to optimise photosynthesis.

▸ Inputs: PPFD value, Light hours per day

▸ Outputs: DLI in mol/m²/day, Target comparison

Environment

Check if your water temperature is in the ideal range and learn what to do if it is not.

▸ Inputs: Current water temperature

▸ Outputs: Status indicator, Recommendations

Environment

Get recommended humidity and VPD ranges based on your plant growth stage and leaf temperature.

▸ Inputs: Plant stage, Leaf temperature, Ambient humidity

▸ Outputs: Recommended humidity, VPD value, Status

Setup

Answer a few questions to get a personalised hydroponic system recommendation for your setup.

▸ Inputs: Budget, Indoor/Outdoor, Plant type, Experience level

▸ Outputs: Recommended system, Why it fits, Alternative options