Calculate your search impression share and estimate missed search traffic. Identify budget and rank limitations to improve Google Ads visibility.
Search impression share specifically measures your visibility in Google search results. Unlike overall impression share, this metric focuses only on text ads served in response to search queries. For most advertisers, search impression share is the most important visibility metric because search captures high-intent users actively looking for your products or services.
This calculator helps you determine what percentage of search impressions you're capturing and how many potential clicks you're missing. It also estimates the potential revenue impact of increasing your search impression share based on your CTR and conversion data.
Tracking search impression share at the campaign, ad group, and keyword level reveals exactly where your ads are and aren't showing. This granular data drives informed decisions about budget allocation and bid optimization.
Precise measurement of this value supports data-driven marketing decisions and helps teams demonstrate clear return on investment to stakeholders and executive leadership. Quantifying this parameter enables systematic comparison across campaigns, channels, and time periods, revealing opportunities for optimization that drive sustainable business growth.
Search impression share directly correlates with your ability to capture demand. If potential customers are searching for your products but not seeing your ads, you're leaving revenue on the table. This calculator quantifies that opportunity. Having accurate metrics readily available streamlines reporting cycles and strengthens the credibility of the marketing team in cross-functional planning and budget discussions.
Search IS = (Search Impressions ÷ Total Eligible Search Impressions) × 100 Missed Clicks = Missed Impressions × CTR Missed Conversions = Missed Clicks × Conversion Rate
Result: 57.1% Search IS
With 20,000 search impressions of 35,000 eligible, your Search IS is 57.1%. You're missing 15,000 impressions. At a 4% CTR, that's 600 missed clicks. At a 3% conversion rate, that's 18 missed conversions — potentially significant revenue left on the table.
Search is the most intent-rich advertising channel. Users are actively looking for products, services, or information. Your search impression share tells you how much of this demand you're capturing. Missing 40% of eligible search impressions means 40% of potential customers never see your ad.
Start with your highest-converting, most valuable keywords. These are where missed impressions cost you the most. Branded keywords should have near-100% search IS. High-intent commercial terms should be next priority. Broad, top-of-funnel terms can have lower IS targets.
If your search IS is below 60% on profitable keywords, you have a clear growth path: increase budget or improve quality to capture more of the existing demand. This is often the lowest-risk way to grow ad revenue because the demand already exists.
Your search IS is relative to the competitive landscape. New competitors entering the market or existing competitors increasing bids will lower your search IS even if your performance hasn't changed. Regular monitoring catches these shifts early.
Search impression share only counts impressions from the Google Search Network. Overall impression share includes Display Network, video, and other placements. Search IS is more actionable for most advertisers because it measures high-intent visibility.
For branded terms, target 95–100%. For high-intent commercial terms, aim for 70–90%. For broad, informational terms, 40–60% may be cost-effective. The right target depends on keyword value and your budget.
Low search IS results from insufficient budget (ads stop showing mid-day), low Ad Rank (Quality Score or bid too low), or restrictive targeting (location, schedule, device). Check the budget and rank lost IS columns for diagnosis.
No. Search impression share is purely a paid advertising metric and has no direct impact on organic search rankings. However, appearing in both paid and organic results can increase overall click-through rates for your brand.
In Google Ads, add the "Search impr. share," "Search lost IS (budget)," and "Search lost IS (rank)" columns to your campaign, ad group, or keyword reports. This data is available at all levels of account structure.
Yes. Improving Quality Score increases your Ad Rank without raising bids, which reduces lost IS (rank). Tightening keyword match types, pausing low-value keywords, and optimizing ad schedules can redirect budget more efficiently.