Order Limit Calculator
Find a fair maximum quantity per customer in seconds. Move the sliders, and see the honest math behind every number.
Kedra Checkout Rules enforces order limits at checkout in about 2 minutes.
Why set order limits?
Order limits cap how much one customer can buy. They protect your stock during sales and drops, keep things fair, and stop bulk resellers and bots from clearing your shelves. The calculator above turns your price, stock and restock time into a simple, honest suggestion — no black box.
The math is meant to be readable. A normal customer buys a certain amount, so the recommended cap sits just above that: enough room for real shoppers, tight enough to block hoarding. When stock is thin and restock is slow, the tool tightens the limit, because each unit matters more.
Turning a number into a checkout rule
Shopify will not enforce a per-customer quantity cap on its own. To apply the number from this calculator, you need a checkout customizer — an app built on Shopify’s checkout extensibility, the modern, upgrade-safe framework that replaced the old checkout.liquid and Scripts. That framework is what lets you add real rules to checkout without touching theme code.
With Kedra Checkout Rules, this is one piece of checkout customization: you pick a product or condition, enter the maximum quantity (or a minimum order value for wholesale), and the rule runs at checkout. It is the fastest way to customize your checkout around the limits this tool recommends — and the same checkout customizer can also hide, rename or reorder payment and shipping methods.
Set this limit in your checkout
in 2 minutes — no code.
Kedra Checkout Rules enforces order limits and minimum order values at checkout, on top of Shopify’s checkout extensibility. There is a free plan, and setup takes minutes.
Order limits, answered
What is an order limit calculator?
An order limit calculator suggests a fair maximum quantity per customer for a product. It looks at your price, stock, restock time and how much a normal customer buys, then recommends a limit that lets real buyers through while stopping hoarders and resellers. This one shows the simple math behind every number.
What is a good order limit per customer on Shopify?
A good limit is a little above what an honest customer normally buys. For everyday products, that is often the typical quantity plus one or two. For limited drops, keep it tight — usually one per customer — so more people get one. For wholesale, allow much more and set a minimum order value instead. The calculator above gives you a starting number for each case.
How do I set order limits on Shopify?
Shopify does not enforce per-customer quantity caps on its own. You add them with a checkout customizer app. Kedra Checkout Rules lets you set order limits — a maximum or minimum quantity, or a minimum order value — as checkout customization rules, with no code. You pick the product or condition, set the number, and the rule is enforced at checkout.
Why should I limit quantity per customer?
Limits protect stock and fairness. Without them, one buyer or bot can clear your inventory in minutes, especially during a sale or drop. Order limits spread scarce stock across more customers, cut down on resellers, and reduce the fraud and chargebacks that come with unusually large orders.
What is a minimum order value and when should I use it?
A minimum order value is the smallest amount a customer must spend to check out. It is most useful for wholesale or B2B, where you want orders to be worth the bulk pricing, and for offsetting shipping costs on very small orders. The calculator suggests a wholesale minimum based on your price and typical order size.
Do order limits hurt sales?
Sensible limits rarely hurt sales, because they sit above what honest customers buy. They mostly block the extreme orders you did not want anyway — bulk resellers and bots. If a limit feels too tight, raise it a little. The goal is to protect stock and fairness without getting in a real shopper’s way.