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Calculate ecommerce conversion rate and cost per conversion from traffic, orders, and ad spend.
Use this ecommerce conversion rate calculator to measure how efficiently store traffic turns into orders. It helps you connect visitors, completed purchases, and ad spend in one quick benchmark. The calculator is designed to give a fast answer, but the quality of the answer still depends on accurate inputs and a clear idea of what decision you are trying to support.
- Enter Store Visitors, Orders, and Ad Spend using the same units you plan to compare or report.
- Read the main ecommerce conversion rate first, then use the supporting outputs to understand the trade-offs behind that result.
- Compare your numbers with the worked examples below if you want a quick reasonableness check.
Conversion rate shows how much of your traffic completes the target action, while cost per conversion links campaign performance directly to spend. On this page, the primary output is ecommerce conversion rate.
Scenario 1: 12,000 visitors, 360 orders, and $5,400 ad spend. Inputs used: visitors: 12000, conversions: 360, adSpend: 5400. Example result: 3.00%. This ecommerce campaign produces 3.00% and gives a clean benchmark for store-level performance. Scenario 2: 28,000 visitors, 910 orders, and $14,560 ad spend. Inputs used: visitors: 28000, conversions: 910, adSpend: 14560. Example result: 3.25%. Higher traffic and more orders still need efficiency context, and this store lands at 3.25% conversion rate.
Core formula: conversion rate = conversions / visitors * 100. The calculator compares completed actions with total traffic to show how efficiently a page, campaign, or funnel turns visitors into results.
- Cost per conversion uses ad spend divided by conversions.
- Consistent attribution windows matter if you compare campaigns across time periods.
Use this calculator when reviewing landing pages, campaigns, funnels, or channel performance and you need a fast conversion benchmark. Related paths for follow-up analysis include landing page conversion rate calculator, campaign conversion rate calculator, conversion rate calculator, and profit margin calculator.
Most bad outputs come from a few repeated input errors or interpretation mistakes. Use this short checklist before relying on the result.
- Comparing campaigns that use different conversion definitions.
- Using mismatched time windows for traffic, conversions, and spend.
- Looking only at conversion rate without checking conversion quality or revenue.
