All calculators
Seeds, fertilizers and simple tools for home gardeners in Malaysia, with free growing guides and calculators made for the tropics.
CalculatorsPot Weight & Balcony Load CalculatorPot weight calculator for balconies and rooftops: estimate the wet weight of soil-filled pots, planters and grow bags in kg and kg per m².CalculatorsFertilizer Dilution CalculatorFertilizer dilution calculator: how many ml or grams of liquid or soluble fertilizer to mix for your watering can or sprayer, from ml/L or 1:N ratio.CalculatorsCompost C:N Ratio CalculatorCompost C:N ratio calculator: mix kitchen scraps, dry leaves, grass, manure and more and see your carbon-to-nitrogen ratio against the 25–30:1 target.CalculatorsSowing Density & Seed CalculatorSowing density calculator: how many plants fit your bed or pot and how many seeds to sow for kangkung, choy sum, lettuce, chili, tomato and more.CalculatorsHydroponic AB Nutrient EC / TDS CalculatorHydroponic AB nutrient calculator: how many ml of stock A and B to reach your target EC, with TDS in ppm on the 500 and 700 scales, plus a top-up mode.CalculatorsNPK Converter (P₂O₅ to P, K₂O to K)NPK converter: change P₂O₅ to P and K₂O to K, see the nutrients in a weight of 15-15-15, and find how much fertilizer gives a target amount.