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Cleaning Chemical Calculator
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Reorder Point Calculator

The stock level to reorder at, from daily use, delivery lead time and the safety days you want to hold.

Inputs

Range: 0.0001–1,000 gal

Enter the measured quantity in the unit shown.

Range: 0.03125–55 gal

The smallest container the supplier will sell for this product. Use the pack size that the purchase order actually uses.

Range: 0–365

Working days from placing an order to the product arriving.

Range: 0–365

Extra days of cover for a late delivery or a busy week. Two to three days is common when the supplier is local.

Result

Containers at the supplier pack size
11 containers
Reorder at this level
10.50 gal
Reading: what this result means for the job
An ordinary lead time with a few days of safety cover. The safety days are a judgement about the supplier rather than a measurement, and the figure to set them from is the number of times you have actually run out.
Applicability limit
The reorder point is daily use multiplied by the lead time plus the safety days, and the lead time has to be the one the supplier commits to for your account rather than the one on the price list. The safety days are a policy choice, and the tool does not set them. This is a planning figure for the values entered, not a measured result. Coverage rates, product yields and application rates are properties of a specific product, applicator and substrate, and the label or data sheet for the product you are using always takes precedence over the default here.
Check before the job

Working

Reorder at this level
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Containers at the supplier pack size
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What to check

  • Use the lead time the supplier actually commits to for your account.
  • Set the safety days from the number of times you have run out, not from a rule.
  • Check the reorder point against the smallest container the supplier will sell.

Related calculators

The reorder point is a policy, not a measurement: the lead time comes from the supplier and the safety days are a judgement about how unreliable that supplier is. A safety stock that is too small turns a delay into an out-of-stock, and one that is too large ties up cash and shelf life.