Excavator Production Calculator
Cycle time, bucket size and efficiency turned into bank cubic yards per hour — and the hours your dig will actually take.
The five factors, in order
Production is a chain, and every link is a multiplier. Cycles per hour is 3,600 divided by cycle time. Bucket capacity is the heaped rating. Fill factor knocks that down to what the bucket really holds. Swell converts the loose material in the bucket back to bank measure, which is how volume is bid. Efficiency then applies the working minutes in a real hour.
Skip any one of them and the number comes out optimistic — usually by 30-50%, which is exactly the margin on a dirt job.
Time your own cycles
Cycle time is the input with the most leverage and the one people guess at. Twenty seconds against twenty-five is a 25% swing in production and it moves your schedule by days. Stand on the pile with a stopwatch and time ten real cycles at the actual swing angle and depth — it takes four minutes and beats every published table.
The 50-minute hour
Efficiency is where optimistic estimates go to die. A machine that works 50 minutes of every hour is running well; 45 is more typical once you count waiting on trucks, moving, fuelling, breaks and grade checks. If trucks are the thing your machine waits on, check the fleet size with the truck load calculator — production maths is pointless if the excavator is idle half the morning.
Feed the result into the excavation cost calculator to turn yards per hour into dollars per yard.
Frequently asked questions
How do you calculate excavator production per hour?
Cycles per hour times bucket payload. Take 3,600 seconds divided by your cycle time to get cycles per hour, multiply by bucket capacity, apply the bucket fill factor, divide by the swell factor to get back to bank measure, then multiply by job efficiency. This calculator chains all five steps.
What is a typical excavator cycle time?
Fifteen to twenty-five seconds for a mid-size hydraulic excavator loading trucks at a reasonable swing angle. Deep digs, tight swings, hard material and poor truck spotting all push it up. Time a few real cycles with a stopwatch rather than trusting the brochure figure.
What is a bucket fill factor?
How full the bucket really gets, as a fraction of its rated capacity. Loose free-flowing sand fills at 100-110%, common earth around 90-100%, sticky clay 80-90%, blasted rock 60-75%. Buckets are rated heaped, and real material rarely cooperates.
Why is my real production lower than calculated?
Job efficiency. A 50-minute working hour is 83% and is considered good; 45 minutes is more common once you count truck waiting, moving the machine, fuelling, breaks and grade checking. Production maths without an efficiency factor describes a machine that never stops, which is not one that exists.