Compare calculators

Both calculators run independently — change the inputs on either side to compare results.

Irrigation Water Requirement Calculator

Calculate daily irrigation water requirement in gallons based on crop water demand (Kc × reference ET), rainfall, system efficiency, and field area. Use it for irrigation scheduling that meets crop needs without overwatering or wasting energy.

Crop Coefficient (Kc)

Reference Evapotranspiration (inches/day)

Effective Rainfall (inches/day)

Irrigation System Efficiency

Field Area (acres)

Fill in the required fields to see your result.

Agriculture

Greenhouse Heating Cost Calculator

Estimates the daily cost to heat a greenhouse based on its size, the inside-outside temperature gap, and fuel price. Helps growers budget winter heating expenses.

Greenhouse Floor Area (sq ft)

Average Outside Temperature (°F)

Target Inside Temperature (°F)

Greenhouse Insulation

Fuel Cost ($/gallon)

Heater Efficiency (%)

Fill in the required fields to see your result.

Key differences

	Irrigation Water Requirement Calculator	Greenhouse Heating Cost Calculator
Category	Agriculture	Agriculture
Inputs required	5	6
Result	Daily Water Requirement (gallons)	Monthly Heating Cost ($)
What it does	Calculate daily irrigation water requirement in gallons based on crop water demand (Kc × reference ET), rainfall, system efficiency, and field area. Use it for irrigation scheduling that meets crop needs without overwatering or wasting energy.	Estimates the daily cost to heat a greenhouse based on its size, the inside-outside temperature gap, and fuel price. Helps growers budget winter heating expenses.