Cost Per Order

Cost per order, also called cost per purchase, is the cost of internet advertising divided by the number of orders. Cost per order, along with cost per impression and cost per click, is the starting point for assessing the effectiveness of a company's internet advertising and can be used for comparison across advertising media and vehicles and as an indicator of the profitability of a firm's internet marketing.[1]


An internet retailer spent $24,000 on online advertising and generated 1.2 million impressions, which led to 20,000 clicks, with 1 in 10 clicks resulting in purchase.

  • Cost per impression = $24,000 ÷ 1,200,000 impressions = $0.02
  • Cost per click = $24,000 ÷ 20,000 clicks = $1.20
  • Cost per order = $24,000 ÷ 2,000 purchases = $12.00[1]


The purpose of the "cost per order" metric is to measure the advertising cost required to acquire an order. If the main purpose of the ad is to generate sales, cost per order is the preferred metric.[1]


This is the cost to generate an order. The precise form of this cost depends on the industry and is complicated by product returns and multiple sales channels. The basic formula is:

Cost per order ($) = Advertising cost ($) / Orders placed (#) [1]


  1. ^ a b c d Farris, Paul W.; Neil T. Bendle; Phillip E. Pfeifer; David J. Reibstein (2010). Marketing Metrics: The Definitive Guide to Measuring Marketing Performance. Upper Saddle River, New Jersey: Pearson Education, Inc. ISBN 0-13-705829-2. The Marketing Accountability Standards Board (MASB) endorses the definitions, purposes, and constructs of classes of measures that appear in Marketing Metrics as part of its ongoing Common Language in Marketing Project.

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  This article uses material from the Wikipedia page available here. It is released under the Creative Commons Attribution-Share-Alike License 3.0.



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