Free calculators and guides to dial in your grow tent — lights, VPD, PPFD, and more.
Everything you need to dial in your grow tent — free, no sign-up required
Find the exact wattage you need for your tent — with light recommendations from Mars Hydro, Spider Farmer, and AC Infinity.
Calculate your Vapour Pressure Deficit and find out if your temp and humidity are dialled in for maximum growth.
Calculate your Daily Light Integral and find out if your plants are getting enough — or too much — light.
How many plants fit in your tent? Get matched to the right size with tent recommendations from AC Infinity, Vivosun, and Mars Hydro.
EC targets, PPM ranges, pH sweet spots, and dosage guides for every growth stage — hydro, coco, and soil.
Calculate your monthly grow room hydro bill by province — lights, fans, dehumidifiers, all devices.
Long winters. Short seasons. Indoor growing solves both.
While outdoor gardens sit frozen from November to April, indoor growers harvest tomatoes, peppers, herbs, and leafy greens year-round — unaffected by Canadian winters.
Calgary gardeners, Winnipeg growers, northern Ontario — indoor growing removes frost dates from the equation entirely. Your season never ends.
Control every variable — light intensity, photoperiod, temperature, humidity, CO₂. No aphids, no slugs, no late frosts. Just consistent, predictable growth.
Our calculators link directly to the gear that fixes your numbers — lights, fans, humidifiers, controllers. Canadian pricing, Canadian shipping, no guesswork.
We only recommend brands we'd use ourselves. All ship to Canada.
Top-tier LED grow lights with Samsung & Osram diodes. FC and TSL series are the go-to for Canadian tent growers. Ships to Canada, strong warranty support.
Find Your Light →The best inline fans, climate controllers, humidifiers, and dehumidifiers for grow tents. CONTROLLER 69 PRO is a must-have for automated VPD management in Canada.
Check Your VPD →Foldable bar-style LED grow lights with excellent PPFD uniformity. The SE series is popular with Canadian growers for its adjustable design and Samsung diode quality.
See Recommendations →Disclosure: Some links on this page are affiliate links. We may earn a commission at no extra cost to you. We only recommend products we'd use ourselves.
Written for Canadian growers — climate, gear, and growing tips that actually apply here.
Start with the grow light calculator — enter your tent size and get a wattage recommendation and product picks in 30 seconds.
💡 Find My Grow Light