Definition in practice
Par is not the same as the reorder point. One describes the intended level; the other signals when an order should be triggered. Lead time, delivery days, storage capacity, spoilage exposure and expected covers influence both. A fixed quantity that worked during one service pattern can become unsuitable when that pattern changes.
Formula and worked example
Illustrative order quantity = desired stock − usable stock − incoming stock, bounded at zero.
Assume a kitchen wants 20 kg available, has 7 kg of usable stock and has 5 kg already on order. The simple replenishment amount is 8 kg. These quantities are assumptions. They do not account for demand between now and delivery unless that demand has already been included in the desired-stock calculation.
Use it in the kitchen
Review unusually large leftovers and stockouts alongside the ordering record. Confirm incoming orders before placing another one. If pack sizes force an order above the desired quantity, record the practical adjustment. Costed Plate costs recipes but does not maintain a live purchasing or perpetual-stock system, so keep this control in an appropriate stock record.
Keep the input record
Write the unit, period and preparation beside the figure you use. Keep the original receipt, count or recipe record available so another person can reproduce the calculation. A clearly labeled assumption is useful for planning; it should not later be mistaken for a measured result.
Use the linked calculator to test your own inputs, then check the result against the original record. The browser ledger can hold recipe quantities and purchase prices, while your stock and accounting records provide the wider operating context. Export a backup before replacing a working ledger.
Sources and method
Checked October 29, 2026. Example inputs and computed results are identified in the text.
- Basic Inventory Procedures. BC Cook Articulation Committee / BCcampus. Stock records, par stock and FIFO; original examples on Costed Plate. Checked 2026-10-29.