Examples
Examples
Try the starting example
- Working implement width (m)
- 3
- Actual ground speed (km/h)
- 8
- Measured field efficiency (%)
- 75
- Field area (ha)
- 18
- Theoretical area capacity (ha/h)
- 2.4
- Effective area capacity (ha/h)
- 1.8
- Field time under assumptions (hours)
- 10
Try another scenario
- Working implement width (m)
- 2
- Actual ground speed (km/h)
- 5
- Measured field efficiency (%)
- 50
- Field area (ha)
- 1
- Theoretical area capacity (ha/h)
- 1
- Effective area capacity (ha/h)
- 0.5
- Field time under assumptions (hours)
- 2
Calculation method
Calculation method
Theoretical area capacity (ha/h)
Width in metres × speed in km/h / 10.
Effective area capacity (ha/h)
Theoretical capacity × measured efficiency fraction.
Field time under assumptions (hours)
Field hectares / effective hectares per hour.
Symbols and units
- a
- Working implement width (m)
- b
- Actual ground speed (km/h)
- c
- Measured field efficiency (%)
- d
- Field area (ha)
Use the units shown. A list keeps the order in which you enter its values. The symbol ^ means “raised to the power of”.
Assumptions & limits
Assumptions & limits
- Capacity arithmetic with a measured efficiency for turns, overlap and interruptions. Enter ground speed rather than wheel-indicated speed. Does not recommend an operating speed or assess machine safety.
Are these inputs private?
These calculations run in your browser. A shared link contains the values you choose to share. Only questions submitted to the separate AI finder are sent to OpenAI.
Further reading
University of Minnesota Extension: planting equipment calibration ↗
Background reading; this does not imply endorsement or independent review of SumFizz.