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Growing Degree Days Calculator

A practical heat-unit tracker for crop planning. Uses real and forecast temperatures for your location to estimate growth stages. Estimates are indicative — use them alongside field observation and official guidance, not in place of them.

Crop

Sowing / start date

Select Your Location

UK Postcode

Keep learning

New to data-driven farming? Read our complete guide to precision agriculture in the UK, see what precision farming actually costs, or take the free interactive introduction course — story-driven, narrated, and cited to AHDB and gov.uk.