Order Conversion Rate

In practice

Order conversion rate measures how much of the traffic reaching an online ordering page turns into a completed order. It is one of the few metrics that ties visits directly to revenue outcome, separating a traffic problem from a checkout problem. A page that gets many visits but few orders points to friction between browsing and payment, not to a lack of demand.

Formula

Completed orders ÷ Sessions × 100

A session counts as any visit to the ordering page, regardless of whether it results in an order. Completed orders count only checkouts that reach a confirmed payment, not carts that were started and abandoned.

For example, a page with 1,000 sessions and 40 completed orders in a week converts at 40 ÷ 1,000 × 100 = 4%.

Example

A restaurant's ordering page recorded 5,000 sessions and 150 completed orders in one month: 150 ÷ 5,000 × 100 = 3%. The following month, sessions rose to 6,000, but completed orders reached only 132: 132 ÷ 6,000 × 100 = 2.2%. Traffic grew by 1,000 sessions, yet the conversion rate fell by 0.8 percentage points. Read on order count alone, the second month looked stronger; read on conversion rate, it revealed that a larger share of visitors left without ordering — a signal that something in the ordering flow, not the marketing that drove the extra traffic, needed attention.

How to use it

• Track the rate alongside session volume and order count, not instead of them: a rising rate with falling sessions can still mean fewer total orders.
• Compare the rate across channels (search, social, direct) to see which traffic sources convert best.
• Segment by device: mobile and desktop sessions often convert at different rates and point to different fixes.
• Watch the rate around specific checkout steps (menu browse, cart, payment) to locate where visitors drop off.

What affects it

• Page load speed and the number of steps required to complete checkout
• Menu clarity, photos, and pricing transparency
• Availability of preferred payment methods
• Delivery or pickup time estimates shown before checkout
• Whether the visitor is a repeat customer with saved details or a first-time visitor entering everything manually