Examples
Examples
Try the starting example
- Order size (units)
- 1000
- Setup time per batch (min)
- 30
- Cycle time per unit (min)
- 1
- Candidate batch sizes (units)
- 100,250,500
- Holding cost per unit per hour (USD/unit/hour)
- 0.01
- Batch scenario table [size,batches,total minutes,setup share %,holding proxy currency] (USD)
- [[100,10,1300,23.0769230769,10.8333333333],[250,4,1120,10.7142857143,23.3333333333],[500,2,1060,5.66037735849,44.1666666667]]
Try another scenario
- Order size (units)
- 1000
- Setup time per batch (min)
- 60
- Cycle time per unit (min)
- 1
- Candidate batch sizes (units)
- 100,250,500
- Holding cost per unit per hour (USD/unit/hour)
- 0.01
- Batch scenario table [size,batches,total minutes,setup share %,holding proxy currency] (USD)
- [[100,10,1600,37.5,13.3333333333],[250,4,1240,19.3548387097,25.8333333333],[500,2,1120,10.7142857143,46.6666666667]]
Calculation method
Calculation method
Batch scenario table [size,batches,total minutes,setup share %,holding proxy currency] (USD)
For each q: batches=ceil(order/q), total=order*cycle+batches*setup, setupShare=100*batches*setup/total; holdingProxy=(q/2)*holdingRate*(total/60).
Symbols and units
- a
- Order size (units)
- b
- Setup time per batch (min)
- c
- Cycle time per unit (min)
- d
- Candidate batch sizes (units)
- e
- Holding cost per unit per hour (USD/unit/hour)
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
- Sequential full-order production, partial last batch; holding proxy uses steady sawtooth average q/2 over production hours and is an approximation, not EOQ or total inventory-cost optimum. Supported limits: positive integer order and q<=order; setup>=0; cycle>0; holdingRate>=0; <=100 sizes.
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
Background reading; this does not imply endorsement or independent review of SumFizz.