How Many Paper Bags Do You Need? Calculating Your First Order

04.03.2026

Ordering branded bags for the first time raises a question that sounds simple and rarely is: how many paper bags should you order? Order too few, and you run out in the middle of a busy month and fall back on plain stock bags. Order too many, and cash and storage space are tied up in boxes for a year. The good news is that you do not need a forecasting system. A few figures you already have, put into one simple formula, give a quantity you can defend to your finance team.

The basic formula

Monthly bag use comes down to four inputs:

Transactions per month × share of transactions that need a bag × size mix + safety stock

Transactions: receipts, orders or deliveries per month, from your till or order system.
Share that needs a bag: not every customer takes one. A coffee to go may not need a bag; a clothing purchase almost always does.
Size mix: how the bags split between sizes, if you use more than one.
Safety stock: a reserve that covers the time it takes to produce and deliver the next batch, plus the unexpected.

Count your real transactions

Take actual figures from the last few months, not an estimate. If you run several locations, count each one separately: a city-centre shop and a suburban one can differ a lot. For a new outlet without history, use a comparable location or a cautious estimate, and plan to correct it after the first month.

This is where most first calculations go wrong. The share depends on what you sell and how people buy it:

Fashion and gift retail: close to every purchase goes into a bag.
Bakeries and cafés: takeaway orders need bags; eat-in orders do not.
Pharmacies and beauty: small purchases may go without; larger baskets need a bag.
Delivery and e-commerce: usually one bag per order, sometimes more for large orders.

The most reliable source is your own staff. Ask them to count bags issued over a typical week, or compare how many plain bags you used last month with the number of receipts.

Step 3: Split by size

If you use two or three sizes, calculate each one separately. Many businesses find that one size covers most purchases and a second size is used far less. Knowing the split prevents the classic situation where the large bags run out first while the small ones gather dust. If you are still choosing sizes, our guide on how to choose the right bag size helps narrow the range.

Step 4: Add safety stock based on the lead time

The safety stock should cover at least the time between deciding to reorder and receiving the bags. For a custom-printed order, production takes about three to four weeks from artwork approval: plates 3–5 days, printing and assembly 10–14 days. Add a few days for confirming the order and for delivery.

From this, you can work out a reorder point: daily bag use × days needed to receive the next batch. When stock falls to this level, it is time to place the next order.

Step 5: Adjust for seasonality

Few businesses use the same number of bags every month. Look at your sales calendar and mark the peaks:

December and the run-up to New Year, for almost all retail and gifting.
Early March, around 8 March, for flowers, cosmetics, gifts and confectionery.
Summer for takeaway food and drinks; back-to-school season for stationery and children’s goods.
Your own promotions, sales and store openings.

Before a peak, either order earlier or order more. The peak is the worst moment to discover that the next batch is still three weeks away.

A worked example

The figures below are an example to show the method, not data from a real client. Imagine a bakery-café brand with four outlets.

Input	Example value	Result
Transactions	4 outlets × 300 per day	1,200 per day
Share needing a bag	50% (takeaway)	600 bags per day, about 18,000 per month
Size mix	70% small, 30% large	12,600 small and 5,400 large per month
Days to receive a new batch	About 28 days	Reorder point about 16,800 bags

If the brand wants its first order to last about three months, it needs around 54,000 bags for use plus a reserve that covers the next lead time, roughly 70,000 in total. When stock falls to about 17,000, the next order should be placed. If December falls inside those three months, the figure goes up.

Minimum order quantities and storage

Two practical limits shape the final number. The first is the minimum order: at Vita Group, custom-printed bags in standard constructions start from 30,000 units. If your calculated monthly use is well below that, the first order will simply cover a longer period, which is often the cheaper option per bag anyway. If you need several sizes, ask your manager how the minimum applies to your order.

The second is storage. Bags arrive packed in boxes on pallets, and paper needs dry conditions away from heaters. Check that you have space for the full quantity, or agree delivery in parts. The ordering steps, from quote to delivery, are covered in our guide to ordering custom packaging.

Common mistakes when estimating how many paper bags you need

Assuming every transaction needs a bag. This inflates the order.
Ignoring the size mix. One size runs out while another sits in storage.
Forgetting the lead time. Reordering when the last box is open is too late.
Not tracking use after the first month. Your first estimate is a starting point; real figures make the second order accurate.

The bottom line

To work out how many paper bags you need, multiply your transactions by the share that needs a bag, split the result by size, and add a reserve that covers the lead time and seasonal peaks. Check the result against the minimum order and your storage space, then track real use for a month or two. The second order will be far more precise than the first.

Have your numbers ready? Send them to our team, and we will help you turn them into a quotation with a realistic delivery date.