Orders over $499
Hard-to-find varieties
Only the best for your grow
Ventilation Calculator
Proper ventilation is one of the most overlooked, yet vital, aspects of any grow space. This calculator helps you determine the ideal airflow rate for your room or tent by factoring in your room size, grow stage, and desired air changes per hour (ACH).
Simply enter your room dimensions and choose whether you’d like to calculate the required fan size or check if your current fan setup is sufficient. The tool can also estimate performance losses from filters, ducting, and bends, giving you a realistic airflow target rather than just the rated fan capacity.
You’ll receive tailored recommendations for both extraction and intake fans, along with optional scrubbing (recirculation) targets to manage odour and maintain CO₂ levels.
💡 Perfect for:
- Growers setting up or upgrading their ventilation system
- Comparing fan performance against room needs
- Estimating real-world airflow with detailed loss modelling
At Hydro Oasis we want to make it easy to achieve a healthy, balanced environment, helping your plants breathe, thrive, and reach their full potential. 🌿
Dehumidification Calculator
Accurate humidity control is critical for plant health. This calculator works out your real-world moisture load and the dehumidifier size you actually need by factoring in room dimensions, target temp/RH (day & night), air changes (ACH), crop stage and Kc (crop coefficient), plant height/canopy, irrigation evaporation, outdoor air, and any extra loads (people/equipment).
Just enter your room details, choose Metric or Imperial, set your growth stage (or custom Kc), and add a safety margin. You’ll get clear day/night removal rates, a daily total, and both recommended and peak capacities, so you can size gear with confidence, not guesswork. 📉🌿
💡Perfect for:
- Growers dialling in VPD/RH across veg and flower
- Choosing the right dehumidifier before you buy
- Verifying whether your current unit(s) can keep up
- Planning ventilation + dehumidification together (ACH-aware)
At Hydro Oasis, we want to make environment control simple and practical, so your plants can breathe, thrive, and reach their full potential. 💧
Nutrient Program Calculator
Accurate feeding is essential for healthy, consistent growth. This calculator builds a complete feed schedule for your room or tent by factoring in your reservoir size and the products you use across Veg and Flower.
Simply choose a preset program or create your own. Enter dilution rates (ml/L) and your reservoir size, and the tool converts them into total millilitres per reservoir, compiles everything into a clear feed-chart, and lets you download a PDF for easy reference.
You’ll get a clean week-by-week plan with totals for each nutrient, plus flexible controls to add, hide, or remove products and weeks as your programme evolves.
💡 Perfect for:
- Growers setting up or standardising a feeding schedule
- Comparing nutrient lines and adjusting rates per stage
- Teams needing a printable, shareable feed chart with real-world reservoir totals
At Hydro Oasis, we make nutrient planning straightforward and reliable, so your plants can thrive and reach their full potential. 🌼
Water Cost Calculator
Water usage can add up quickly in a grow room, especially when you're watering multiple plants several times a week. This calculator helps you work out the true cost of water for your setup by factoring in your number of plants, litres per plant, watering frequency, and your local water provider’s rate (or a custom rate if preferred).
Simply enter your details and the calculator breaks everything down into daily, weekly, monthly, and yearly costs, showing both per-plant and total grow figures. You’ll also see your cost per litre, making it easy to compare systems, adjust techniques, or budget for future grows.
💡Perfect for growers wanting to:
- Understand water usage and running costs
- Compare the efficiency of different systems or cultivars
- Budget accurately for current and upcoming cycles
- Track and reduce water costs over time
At Hydro Oasis, we want to make cost-planning simple and transparent, helping you run a more efficient, sustainable grow from start to finish. 💧
Nutrient Cost Calculator
Get a clear, real-world picture of your feed costs. This calculator totals the true cost of your nutrient programme by combining plant count, water per plant, watering frequency, and each product’s bottle cost, bottle size, and ml/L dilution rate. Add as many nutrients as you use, then click Calculate to see per-litre cost per product plus daily, weekly, monthly, and yearly spend, alongside total litres used per period for quick planning. Toggle rounding and export a tidy PDF for your records.
💡Perfect for:
- Budgeting and price-checking nutrient lines before you commit
- Comparing formulas by cost per litre at your actual dilution rate
- Forecasting ongoing costs across veg/flower and different plant counts
- Shop floor/customer quotes and internal cost tracking
Simple, accurate, and built for growers, so you can feed confidently and keep the numbers tight. 📊
Electricity Cost Calculator
Energy use adds up fast in any grow space. This calculator helps you work out the true running cost of your equipment by factoring in on-peak and off-peak tariffs, device wattage, operating hours, and which days of the week each item runs.
Simply enter your electricity rates, add your equipment, set the time ranges each device operates, and choose whether it runs daily or on selected days. The calculator instantly breaks everything down into kWh and dollar totals, per item and in total, for the day, week, month, and year. You can also toggle rounding and download a clean PDF report for your records.
💡 Perfect for:
- Growers budgeting their room’s running costs
- Comparing equipment before upgrading
- Identifying high-consumption devices
- Planning energy-efficient grow setups
At Hydro Oasis, we make cost-planning simple and transparent, so you can run your grow efficiently, confidently, and with no surprises on your power bill.💡
Harvest Cost Calculator
Harvests get expensive fast. This calculator adds up your real weekly inputs across veg and flower, nutrients, water, and electricity, then converts everything into cost per gram, ounce, pound, and kilogram so you can price with confidence, not guesswork.
Enter your weekly spend for each phase, add as many weeks as you need, set your final harvest weight, and choose whether to round results. You’ll see clear totals by input plus a clean per-weight breakdown, and you can export a tidy PDF report for records or quoting.
💡 Perfect for:
- Pricing product accurately before sale
- Comparing runs and spotting where costs spike
- Checking profitability targets by weight
- Building simple, repeatable cost models for your room
At Hydro Oasis, we keep cost planning simple and transparent, so you can harvest smart, stay profitable, and scale with confidence. 💵