GDU Calculator: Optimize Your Crop Growth with Growing Degree Units

Calculate Your Daily Growing Degree Units (GDU)

Use 86.0 °F or 30.0 °C for many common crops like corn.

Discover the power of our GDU Calculator to precisely track crop development. Understand Growing Degree Units to enhance planting, irrigation, and harvest timing, ensuring healthier yields and efficient farm management.

Formula:

Daily GDU = ((Tmax + Tmin) / 2) - Tbase

Where:

  • Tmax = Maximum daily air temperature (capped at Tceil)
  • Tmin = Minimum daily air temperature (capped at Tbase)
  • Tbase = Base temperature for the specific crop
  • Tceil = Ceiling temperature for the specific crop (if applicable)
Note: If the average temperature ((Tmax + Tmin) / 2) is less than Tbase, the GDU for that day is 0.

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