Field Capacity Calculator
A 2.5 m wide implement working at 5 km/h with 80 % field efficiency covers 1 ha/h.
Tillage 70–90 %, seeding 65–80 %, combine harvesting 65–80 %.
1 ha/h
- Theoretical field capacity W S/10
- 1.25 ha/h
- Time per hectare
- 1 h/ha
- Time for 10 ha
- 10 h
- In acres per hour
- 2.471053815 acre/h
Step-by-step solution
- TFC = W × S / 10 = 2.5 m × 5 km/h ÷ 10 = 1.25 ha/h
- EFC = TFC × field efficiency = 1.25 × 0.8 = 1 ha/h
Field Capacity Formula
TFC = W S / 10, EFC = TFC × field efficiency
W in m, S in km/h, capacities in ha/h
Worked Example
A 2.5 m implement at 5 km/h with 80 % field efficiency:
- TFC = W × S / 10 = 2.5 m × 5 km/h ÷ 10 = 1.25 ha/h
- EFC = TFC × field efficiency = 1.25 × 0.8 = 1 ha/h
Time per hectare: 1 h/ha · Time for 10 ha: 10 h · In acres per hour: 2.471053815 acre/h
GATE tip
Use the effective (actual) width, not the rated width: overlap between passes reduces it.
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Frequently asked questions
Why is field efficiency below 100 %?
Turning at headlands, overlapping, filling seed or fertiliser, and adjustments take time when no area is covered.
Where does the 10 come from?
W (m) × S (km/h) gives 1000 W S m²/h; dividing by 10,000 m²/ha gives W S/10 ha/h.
Sources
- The International System of Units (SI), 9th edition (SI Brochure), Bureau International des Poids et Mesures .
Last reviewed: . Factors are stored exactly and computed with 50-digit decimal arithmetic. See how we verify conversion factors.
Cite this page
APA
Scientific Converters. (2026, October 15). Field Capacity Calculator. Retrieved October 29, 2026, from https://scientificconverters.com/calculators/field-capacity-calculator/
IEEE
Scientific Converters, "Field Capacity Calculator," scientificconverters.com. Accessed: Oct. 29, 2026. [Online]. Available: https://scientificconverters.com/calculators/field-capacity-calculator/