Lighting Calculators & Tools

Lighting Calculators & Tools | GrōHaus
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Light. Data. Growth. Smarter cultivation starts here.

Lighting Calculators & Tools

Optimize your lighting setup with precision. Whether you're dialing in wattage, PPFD, or DLI, these cannabis lighting calculators help you plan smarter, grow better, and maximize yields. Designed for indoor cultivators using LED, HID, or fluorescent lighting systems.

Wattage Calculator

Estimate your lighting needs based on grow area and plant stage.

Best for room planning & canopy size.

PPFD Calculator

Convert light intensity and distance into usable PPFD values.

Best for checking light strength & distance.

DLI Calculator

Determine daily light integral based on PPFD and hours of light.

Best for setting light schedules & photoperiods.

Light Distance Estimator

Find the ideal hanging height for your grow light based on wattage, type (LED/HID), and plant stage.

Best for safe & efficient light placement.

PAR Map Visualizer

Input your light and grow area to see estimated light spread, hotspots, and coverage zones.

Great for tent layouts and light placement.

Light Schedule Generator

Create a tailored light schedule based on plant type (auto/photo), breeder recommendation, and grow method.

Perfect for consistent growth & flowering.

No data collected. These tools are free to use, ad-free, and built for growers by growers.


Cannabis Lighting Calculators for Indoor Grow Lights

Learn More About Grow Lights

Our Grow Light Learning Guide breaks down everything you need to know about lighting for cannabis — from LED vs. HID comparisons to spectrum science, wattage, photoperiods, and safety. It’s the perfect companion to our tools, designed to help you grow smarter and more confidently in any space.

Grow Lights Learning & Shopping Guide

Want to master lighting? Visit our Grow Lights Learning Guide for expert tips, comparisons, and tools.
Explore the Module →

Ready to Upgrade Your Lighting?

Explore our full range of LED, fluorescent, and HID grow lights designed for cannabis cultivation.

Shop Grow Lights →
Tool Suite by GrōHaus — helping cultivators grow smarter.