CO₂ Grow Room Calculator
Calculate CO₂ requirements and flow rates for optimal plant growth in grow rooms and tents
Calculate CO₂ Requirements
Grow Room Dimensions
CO₂ Levels
Atmospheric CO₂ is typically around 420 ppm
Optimal range for plants: 1200-1500 ppm
CO₂ Tank Settings
Duration for CO₂ injection to reach target level
CO₂ Requirements
CO₂ Volume Needed
CO₂ Flow Rate
Formula used: CO₂ needed = (Target CO₂ - Current CO₂) / 1,000,000 × Room Volume
CO₂ increase: 780 ppm in 0.00 m³ room
Flow rate formula: Flow rate = CO₂ needed ÷ Time duration
Safety Analysis
Example Calculation
Small Grow Tent Example
Grow tent dimensions: 1.2m × 1.2m × 2.0m
Room volume: 1.2 × 1.2 × 2.0 = 2.88 m³
Current CO₂: 420 ppm (atmospheric)
Target CO₂: 1400 ppm (optimal for growth)
CO₂ injection time: 30 minutes
Calculation Results
CO₂ needed = (1400 - 420) / 1,000,000 × 2.88
CO₂ needed = 980 / 1,000,000 × 2.88
CO₂ needed = 0.002822 m³ = 2.82 L
Flow rate = 2.82 L ÷ 0.5 h = 5.64 L/h
CO₂ Level Guide
420 ppm
Atmospheric level
800-1000 ppm
Slight enhancement
1200-1500 ppm
Optimal for plants
1500-2000 ppm
Diminishing returns
5000+ ppm
Unsafe for humans
CO₂ Tips
Only add CO₂ during light hours when photosynthesis occurs
Ensure adequate light, water, and nutrients for CO₂ benefits
Use proper ventilation and CO₂ monitoring equipment
Never exceed 1500 ppm - can damage plants and be unsafe
Don't stay in rooms with high CO₂ levels for extended periods
Understanding CO₂ in Grow Rooms
Why Add CO₂?
Plants use CO₂ during photosynthesis to create energy and grow. While atmospheric CO₂ (around 420 ppm) supports basic plant growth, higher concentrations can significantly increase yields when combined with adequate light, water, and nutrients.
Benefits of CO₂ Supplementation
- •Increased photosynthesis rate and plant growth
- •Higher yields and faster flowering/fruiting
- •Better heat tolerance in plants
- •Improved water use efficiency
CO₂ Calculation Formula
CO₂ needed = (Target ppm - Current ppm) / 1,000,000 × Volume
Flow rate = CO₂ needed ÷ Time duration
Important Considerations
- Light dependency: CO₂ only benefits plants during light hours
- Nutrient balance: Higher CO₂ increases nutrient demand
- Temperature: Plants can tolerate higher temps with more CO₂
- Ventilation: Balance CO₂ retention with air circulation
Safety Warning
High CO₂ concentrations can be dangerous for humans. Levels above 5000 ppm can cause drowsiness, headaches, and other health issues. Always use proper monitoring equipment and ventilation. Never enter a grow room with high CO₂ levels without ensuring your safety first.