Fertilizer Spread Rate Calculator
Calculate actual spread rate from flow rate, or enter your desired application rate and calculate the required flow rate. Works in metric or imperial units.
km/h
metres
kg/min
Application rate
0.0
kg/ha
Flow rate
0.0
kg/min
Area covered
0.00
ha/hour
Fertilizer used
0
kg/hour
Formula used
Rate = flow rate × 600 ÷ speed ÷ spread width
Tip for measuring flow rate:
Run the super spreader stationary for a measured time, catch and weigh the fertilizer, then divide the collected weight by the number of minutes. For example, 20 kg collected in 30 seconds equals 40 kg/min.
Run the super spreader stationary for a measured time, catch and weigh the fertilizer, then divide the collected weight by the number of minutes. For example, 20 kg collected in 30 seconds equals 40 kg/min.