Pantry Refill Interval Calculator

How to calculate your pantry refill interval?

The refill interval tells you how many days a single package lasts before you run out.

Formula: Days = Package Size / (People × Daily Use × Buffer)

Using the calculator: an example.

For a household of 4 using a 1,000g bag of rice.

Step-by-step calculation:

• Identify total daily use (e.g., 4 people × 50g = 200g)
• Add a 10% safety buffer (200g + 20g = 220g)
• Divide package size by total use (1,000g / 220g ≈ 4.5 days)

Frequently Asked Questions

Why should I add a safety buffer?

Buffers account for spillages, guests, or unexpected hunger spikes, ensuring you don't run out early.

How do I measure daily consumption?

Check the 'serving size' on the nutrition label and multiply it by how many servings one person typically eats per day.

Does the food type matter?

Yes, high-density foods like grains are used more predictably than occasional snacks or seasonings.