Inventory planning scaffold

Inventory Par / Reorder Calculator

Plan deliveries with usage, lead times, and safety stock so you never run out or over-order.

Par inputs

Capture usage, delivery rhythm, and buffer to derive par and reorder levels.

Weekly usage (units)

Delivery frequency (days)

Safety stock (days)

On hand (units)

Seasonal multiplier

Apply uplift for holidays or catering events.

Par (deliveries/week) = (Weekly Usage + Safety Stock) ÷ Deliveries.

Safety Stock (optional) = Max Usage × Max Lead − Avg Usage × Avg Lead.

Seasonal flag multiplies usage by a seasonal index without duplicating vendor deliveries.
Zero deliveries per week should prompt the user to enter a realistic schedule.
Handle items missing lead time data by falling back to library defaults.

Bacon example: 11.2 kg/week, 25% safety stock, three deliveries → ~4.7 kg par level.
Toggle seasonal multiplier and confirm recalculated par values make sense.
Reload the page and verify codex.par.v1 restores each item row.

We store your inputs on this device to resume your work; not shared or used for ads.

Detailed data grid and calculations coming online shortly.