Kanban Quantity Calculator
Estimate whole kanban cards from user-supplied demand rate, replenishment lead time, safety allowance and container capacity.
A QUICK WALKTHROUGH
How to use this tool
- Enter the values below.
- Quantity=demand rate×lead time×(1+s)/capacity; cards=ceiling(quantity). Demand, lead time and s ≥0; capacity is a positive safe integer. Demand and lead time must use the same time basis and container units. s is a fractional allowance, not a service-level probability or a multiplier. Inputs are chosen by the user. This arithmetic estimate is not a production plan, safety-stock policy or equipment recommendation.
- Calculate and review the result.
Formula and scope
Quantity=demand rate×lead time×(1+s)/capacity; cards=ceiling(quantity). Demand, lead time and s ≥0; capacity is a positive safe integer. Demand and lead time must use the same time basis and container units. s is a fractional allowance, not a service-level probability or a multiplier. Inputs are chosen by the user. This arithmetic estimate is not a production plan, safety-stock policy or equipment recommendation.
Inputs stay in this browser; nothing is sent.
Inputs stay in this browser; nothing is sent.
GOOD TO KNOW
Common questions
How is it calculated?
Quantity=demand rate×lead time×(1+s)/capacity; cards=ceiling(quantity). Demand, lead time and s ≥0; capacity is a positive safe integer. Demand and lead time must use the same time basis and container units. s is a fractional allowance, not a service-level probability or a multiplier. Inputs are chosen by the user. This arithmetic estimate is not a production plan, safety-stock policy or equipment recommendation.