Bag & Pouch Capacity Calculator

How to Use the Common Bag Sizes Chart

This chart is designed to help you quickly compare estimated volumes across different types of bags and pouches. You can switch between units like fluid ounces, milliliters, cups, and cubic inches using the dropdown above. The table covers both inch and centimeter-based dimensions, so it works whether you're packaging snacks or storing supplies.

What the Columns Mean

Each column in the chart corresponds to a common bag or pouch style. These include standard flat bags, ziplock styles, and stand-up pouches. Because construction methods affect internal space, we adjust each estimate to better reflect usable capacity.

Why This Chart Helps

If you’re trying to choose between different packaging sizes—or just figure out how much a bag can hold—this chart gives you an instant ballpark estimate. It's especially helpful if you're buying online and can't physically test the bags first.

Need More Precision?

If you already have a bag and want to calculate its exact internal capacity, try our interactive Bag Volume Calculator. It lets you enter your own measurements and gives a more specific result.