Conversion Rate Calculator

Conversion rate equals the number of conversions divided by total visitors, multiplied by 100. A website with 5,000 visitors and 250 conversions has a 5% conversion rate. This calculator also computes cost per conversion, revenue per visitor, and return on ad spend (ROAS) when you provide revenue and advertising cost data.

Quick Answer

A website with 5,000 visitors and 250 conversions has a conversion rate of 5%. If those conversions generated $12,500 in revenue on $3,000 in ad spend, the ROAS is approximately 4.17x.

Revenue generated from conversions.

Total advertising cost for this traffic.

Common Examples

Input Result
1,000 visitors, 50 conversions 5.00% conversion rate
10,000 visitors, 200 conversions, $6,000 revenue, $2,000 ad spend 2.00% rate, $10.00 cost/conversion, 3.00x ROAS
5,000 visitors, 250 conversions, $12,500 revenue 5.00% rate, $2.50 revenue/visitor, $50.00 revenue/conversion
50,000 visitors, 500 conversions, $25,000 revenue, $10,000 ad spend 1.00% rate, $20.00 cost/conversion, 2.50x ROAS
2,000 visitors, 80 conversions, $4,000 revenue, $4,000 ad spend 4.00% rate, $50.00 cost/conversion, 1.00x ROAS (break-even)

How It Works

This calculator uses the standard conversion rate formula along with several related marketing metrics:

Conversion Rate = (Conversions / Total Visitors) x 100

Cost Per Conversion = Ad Spend / Conversions

Revenue Per Visitor = Revenue / Total Visitors

ROAS = Revenue / Ad Spend

Where:

  • Conversions = completed desired actions (purchases, sign-ups, downloads, form submissions)
  • Total Visitors = the total number of visitors, impressions, or leads in the measurement period
  • Ad Spend = total advertising cost used to generate those visitors
  • ROAS = return on ad spend, expressed as a multiple (e.g., 3x means $3 revenue per $1 spent)

Interpreting conversion rate

Conversion rate varies widely by industry and channel. E-commerce sites typically see rates between 1% and 4%. Landing pages optimized for a single action often achieve 5% to 15%. B2B lead generation forms tend to fall in the 2% to 5% range. Comparing your rate against industry-specific benchmarks is more useful than targeting a universal “good” number.

ROAS and profitability

A ROAS of 1.0x means revenue exactly equals ad spend (break-even on ad cost alone, before accounting for product costs). Most businesses need a ROAS above 2x to 4x to remain profitable after factoring in cost of goods sold, fulfillment, and overhead. The required ROAS depends on your profit margins.

Worked example

An online store runs a paid search campaign. Over one month, the campaign drives 5,000 visitors to the site. Of those, 250 make a purchase, generating $12,500 in total revenue. The ad spend for the campaign was $3,000. Conversion rate = 250 / 5,000 x 100 = 5%. Cost per conversion = $3,000 / 250 = $12.00. Revenue per visitor = $12,500 / 5,000 = $2.50. Revenue per conversion = $12,500 / 250 = $50.00. ROAS = $12,500 / $3,000 = 4.17x. At 4.17x ROAS, every dollar of ad spend generates approximately $4.17 in revenue.

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Frequently Asked Questions

What is a good conversion rate?
Conversion rate benchmarks vary by industry. E-commerce sites typically range from 1% to 4%, with top performers reaching 5% or higher. SaaS free trial conversion rates are often 3% to 8%. Landing pages built for a single call to action can reach 10% to 15%. Comparing against your own historical data and industry-specific benchmarks is more meaningful than targeting a single universal number.
What counts as a conversion?
A conversion is any completed desired action. Common examples include purchases, email sign-ups, free trial registrations, form submissions, app downloads, and phone calls. The definition depends on the goal of the page or campaign being measured.
How is ROAS different from ROI?
ROAS (Return on Ad Spend) measures revenue generated per dollar of advertising spend. ROI (Return on Investment) is broader and accounts for all costs, including product costs, labor, and overhead. A campaign with a 4x ROAS might still have a negative ROI if the cost of goods sold exceeds the remaining margin. ROAS is useful for evaluating ad efficiency; ROI measures overall profitability.
Why is my cost per conversion high?
High cost per conversion can result from several factors: targeting too broad an audience, low ad relevance, poor landing page experience, or competitive bidding in your market. Improving ad targeting, testing different ad creatives, and optimizing landing pages for the specific action you want visitors to take are common approaches to reduce cost per conversion.
Can I use this for non-advertising scenarios?
Yes. The conversion rate formula works for any scenario where you track total opportunities and successful outcomes. Sales teams use it for lead-to-close rates. Email marketers use it for click-to-purchase rates. Leave the ad spend field empty if advertising costs are not relevant to your calculation.