Gardening calculators

Enter a measured travel test, a nozzle catch test, and the labeled carrier and product rates. The calculator reports actual GPA, the nozzle flow needed to hit target, pressure guidance, and exact full-tank and final-tank mix amounts.

Enter the wet weight, moisture, carbon, and nitrogen values for two compost ingredients. The calculator solves the balancing ingredient by dry-matter C:N ratio, then checks whether the resulting batch is dry enough or too wet for the moisture target.

Enter the wetted bed area, a typical soil texture, root-zone depth, and your emitter output. The calculator estimates the water needed to refill the selected share of the root zone and converts it to a zone runtime.

Enter the target ppm nitrogen, fertilizer analysis, injector ratio, stock tank volume, flow, and runtime. The calculator sizes the stock solution and checks how long that tank can feed the irrigation event.

Choose up to four fertilizer materials and enter their weights to estimate the blend salt index, finished grade, and the components that contribute most.

Use a weighed test run to set a broadcast or rotary spreader for the fertilizer rate you chose. The calculator converts fertilizer grade to product weight, compares the test result with the target, and estimates how much material to buy.

Enter the source-water alkalinity, target alkalinity, acid concentration, and injector setup. The calculator gives the dose per 100 gallons, the direct batch dose, the stock-tank recipe, and the nutrient added by the acid.

Enter the greenhouse dimensions, summer conditions, and a candidate fan. The calculator estimates delivered exhaust airflow, fan count, intake opening area, and winter and spring/fall staging.

Enter the greenhouse dimensions, covering, design temperatures, leakage rate, and heater efficiency. The calculator estimates exposed area, heat loss, required BTU/h, a rounded heater size, and fuel use at the design load.

Enter the hedge length, plant spacing, row layout, contingency, and unit price to estimate how many plants to order and what the plants will cost.

Enter a rectangular orchard block, the access space you need, and your planned spacing. The calculator counts whole row and tree positions, estimates the nursery order, and compares theoretical density with the density that fits the full block.

Enter soil-test sodium, CEC, treatment depth, and the gypsum product details. The calculator converts the Oster-Shainberg-Abrol requirement into field rate, garden rate, product pounds, bags, and optional cost.

Use eight catch-cup readings from one sprinkler zone to estimate lower-quarter distribution uniformity, precipitation rate, and a runoff-aware runtime schedule.