Compare calculators

Both calculators run independently — change the inputs on either side to compare results.

Safety Stock Calculator

Calculates the buffer inventory needed to prevent stockouts when demand or supplier lead times fluctuate. Essential for supply chain planners setting reorder points or service-level targets.

Average Daily Demand (units)

Demand Standard Deviation (units)

Average Lead Time (days)

Desired Service Level

Fill in the required fields to see your result.

Supply Chain

ABC Analysis Calculator

Classify your inventory items into A, B, and C categories based on their share of total annual usage value. Use this when prioritizing stock control efforts and identifying which items deserve the most management attention.

Annual Usage Value ($)

Total Inventory Value ($)

Fill in the required fields to see your result.

Key differences

	Safety Stock Calculator	ABC Analysis Calculator
Category	Supply Chain	Supply Chain
Inputs required	4	2
Result	Safety Stock Level (units)	Item Percentage (%)
What it does	Calculates the buffer inventory needed to prevent stockouts when demand or supplier lead times fluctuate. Essential for supply chain planners setting reorder points or service-level targets.	Classify your inventory items into A, B, and C categories based on their share of total annual usage value. Use this when prioritizing stock control efforts and identifying which items deserve the most management attention.