Science cluster
Agriculture & Gardening Calculators
Plan irrigation, planting, fertilizer, livestock feed, and crop yields for gardens, farms, and hydroponic systems.
Top calculators
A short starting set for the most common agriculture & gardening calculators workflows.
Seed Germination Rate Calculator: Pure Live Seed and Seeding Rate
Turn a seed label into pure live seed percent, the seeds you must sow for a target plant stand, and bulk pounds per acre, using USDA and ISTA seed-testing rules.
Aquaponics Design, Fish Biomass & Crop Yield Calculator
Estimate aquaponics fish biomass, feed and ammonia load, grow-bed crop yield, operating costs, and simple payback from your tank, plant, and pump inputs.
Lawn Sprinkler Runtime Calculator – Estimate Zone Minutes and Gallons
Estimate sprinkler-zone runtime and gallons used from watering depth, precipitation rate, and flow rate.
Pasture Stocking Rate Calculator - AUMs, AUEs and Carrying Capacity
Convert forage production and NRCS harvest efficiency into animal-unit-months, carrying capacity and a defensible stocking rate for any livestock class.
Hay Bale Yield Calculator for Bale Count, Dry Matter and Winter Feed
Estimate hay bales, as-baled hauling weight, harvested dry matter, storage loss and winter herd demand from field area, forage yield, moisture and bale size.
Rotational Grazing Paddock Planner: Size, Count and Rest Period
Size rotational grazing paddocks the NRCS way: paddock area, paddock count, recovery period, stocking rate and stocking density from herd dry matter demand.
Bonsai Watering Schedule Planner | Estimate When to Water
Estimate a bonsai watering schedule from pot size, species demand, humidity, and temperature so you can water at the right time and avoid soggy roots or dry soil.
Hydroponic Nutrient Calculator - Part A and Part B Mixing Amounts
Calculate equal Part A and Part B nutrient amounts for a hydroponic reservoir from its volume and your desired EC.
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Browse 12 calculators matched to this topic, or return to the Science category.
Aquaponics Design, Fish Biomass & Crop Yield Calculator
Estimate aquaponics fish biomass, feed and ammonia load, grow-bed crop yield, operating costs, and simple payback from your tank, plant, and pump inputs.
Artificial Reef Fish Habitat Capacity & Biomass Calculator
Estimate an artificial reef's modeled fish capacity, standing biomass, overstock risk, and recruitment time from reef volume, complexity, density, and fish mass.
Bonsai Watering Schedule Planner | Estimate When to Water
Estimate a bonsai watering schedule from pot size, species demand, humidity, and temperature so you can water at the right time and avoid soggy roots or dry soil.
Hay Bale Yield Calculator for Bale Count, Dry Matter and Winter Feed
Estimate hay bales, as-baled hauling weight, harvested dry matter, storage loss and winter herd demand from field area, forage yield, moisture and bale size.
Horse Hay Feed Requirement Calculator - Daily Ration and Bales
Work out a horse's daily hay ration on a dry-matter basis, correct for bale moisture and feeding waste, and get the bale count for any planning period.
Hydroponic Nutrient Calculator - Part A and Part B Mixing Amounts
Calculate equal Part A and Part B nutrient amounts for a hydroponic reservoir from its volume and your desired EC.
Indoor Plant Watering Schedule Planner - Estimate Days Between Watering
Estimate an indoor plant watering interval from pot diameter, plant type, room temperature, humidity, and light level.
Lawn Sprinkler Runtime Calculator – Estimate Zone Minutes and Gallons
Estimate sprinkler-zone runtime and gallons used from watering depth, precipitation rate, and flow rate.
Livestock Feed Conversion Calculator for FCR and Weight Gain
Estimate livestock feed conversion ratio from starting weight, ending weight, and feed consumed to evaluate how efficiently animals turn ration into gain.
Pasture Stocking Rate Calculator - AUMs, AUEs and Carrying Capacity
Convert forage production and NRCS harvest efficiency into animal-unit-months, carrying capacity and a defensible stocking rate for any livestock class.
Rotational Grazing Paddock Planner: Size, Count and Rest Period
Size rotational grazing paddocks the NRCS way: paddock area, paddock count, recovery period, stocking rate and stocking density from herd dry matter demand.
Seed Germination Rate Calculator: Pure Live Seed and Seeding Rate
Turn a seed label into pure live seed percent, the seeds you must sow for a target plant stand, and bulk pounds per acre, using USDA and ISTA seed-testing rules.