Free tools

Grow Toolkit

Tell us about your grow and we will help you work out what you need. Free, no signup, and the maths is shown so you can check it.

• VPD Calculator — is your environment helping or fighting your plants?
• Grow Light & DLI Calculator — are your plants getting enough light, and for long enough?
• Fan & CFM Calculator — how much airflow your space needs, and what fan that means
• Nutrient Calculator — coming soon
• Nutrient Stack Builder — coming soon
• Pruning Schedule — coming soon