Planting Date Optimizer
Estimate growing degree unit (GDU) accumulation and days to crop maturity from base temperature, daily temperatures, and target GDUs.
Inputs
F
F
F
F
GDUs
Results
Days to Maturity
164 days
Weeks to Maturity23.4 weeks
Daily GDU Accumulation16.5 GDU/day
GDUs in First 4 Weeks462 GDUs
GDUs in First 8 Weeks924 GDUs
Weeks12GDU1,386
Days Simple159
How to Use This Calculator
- Select your crop and geographic region or USDA plant hardiness zone.
- Enter the average last frost date for your area.
- Set soil temperature threshold for germination (e.g., 50 F for corn, 55 F for soybeans).
- Review the recommended planting window and expected maturity date.
- Use the maturity date to evaluate hybrid or variety selection for your area.
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