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Grocery Mentor

Pantry Inventory Calculator

Track pantry quantities and use rates to know how many days of stock you have on hand and what to reorder before you run out.

First item to run out

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Saved records

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🔒 Saved only in this browser. Nothing is sent to a server.

Quick answer: Divide the current quantity on hand by your average daily use to get days of stock remaining. Items with the fewest days remaining and the highest importance to planned meals should move to the top of your reorder list.

Practical guide

How to estimate when pantry staples will run out

  1. 1

    Record the quantity currently on hand in one consistent unit.

  2. 2

    Estimate average daily or weekly use from recent household behavior.

  3. 3

    Divide stock by use rate and place the shortest estimate at the top of the restock list.

Worked example

Example: 12 cups of rice used at 0.5 cup per day provide about 24 days of estimated stock.

How to read the result

Days remaining is a planning estimate. Recount occasionally and adjust the use rate when household routines change.

Important limits: The calculator does not assess spoilage, recalls, pests, nutrition, or food safety. Browser data can be cleared from the device.

Evergreen method

Measure how much of the basket had a job

A useful list connects purchases to meals, staples or a deliberate reserve before checkout.

Formula

planned coverage = planned items ÷ total items × 100

Reproducible steps

  1. 1.Inventory what you already have.
  2. 2.Give each planned item a meal, staple or reserve role.
  3. 3.Review unplanned items before checkout instead of banning them blindly.

Data note — Evergreen model: The formula works with your own inputs and does not depend on a specific price or year.

Read our methodology and update policy

FAQ

Questions, answered

How do I calculate days of pantry stock?

Divide the usable quantity on hand by average use per day, keeping both values in the same unit.

What should I restock first?

Prioritize items with the fewest days remaining that are important to planned meals or household needs.

Is pantry data uploaded?

No. Entries stay in your browser in this backend-free version.

What should I always have stocked in my pantry?

A useful pantry baseline covers grains (rice, pasta, oats), canned goods (beans, tomatoes, tuna), oils, vinegar, salt, and a few spices — items that appear across many recipes and last months. The Pantry Inventory Calculator above helps you track exactly how much of each staple you have and when to reorder.

How do I organize my pantry to save money on groceries?

Group items by category, rotate new stock to the back so older items get used first, and track quantities against your weekly use rate. Knowing what you already have prevents duplicate purchases, which are one of the most common sources of grocery overspend.

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