GA4 Sampling & Cost Estimator

In GA4, standard (free) properties apply sampling to exploration reports once a single query needs to scan more than 10 million events. Standard aggregated reports (the default reports) are generally unsampled, but explorations and detailed queries fall back to a sampled subset above that threshold, which is then scaled up to estimate the full dataset. Analytics 360 raises the per-query limit to as much as 1 billion events. This estimator compares your monthly event volume against the 10 million standard threshold so you can see how close you are.

The math is simple and runs entirely in your browser. It starts from your monthly events (if you enter sessions instead, it multiplies by an events-per-session factor you control). It then estimates the events a typical exploration query has to scan by applying a date-range factor for how far back you usually look and an intensity factor for how heavily you use explorations. The result is an order-of-magnitude estimate, not an exact figure. GA4 sampling depends on the specific query, date range, segments, and filters, so treat this as a planning guide rather than a guarantee.

GA4 groups rarely-seen dimension values into an "(other)" row when a dimension has too many unique values. Google documents that dimensions with more than 500 unique values in a single day are treated as high-cardinality, and there is an overall cardinality limit of 50,000 values, after which control kicks in. High-traffic sites with many unique page paths, product IDs, or custom parameters are the most likely to see data collapse into "(other)", which can hide the long tail in your reports. This tool flags when your volume makes that more likely.

Google does not publish a fixed public price for Analytics 360. It is sold through Google sales and partners on an annual contract, and the cost varies by data volume and the terms you negotiate. Because there is no single official figure, this tool does not quote a number for 360. If you are weighing it up, contact Google sales or a certified partner for a quote based on your traffic.

Zenovay does not sample your reports. Counts in the dashboard reflect the events that were actually recorded, rather than a scaled-up estimate from a subset. Pricing is a flat plan fee rather than a figure that climbs with data volume, so the number you see does not change as your traffic grows. Plans do have event allowances, and you can review those on the Zenovay pricing page to check the fit for your volume.

No. Every input and calculation stays in your browser. Nothing is uploaded, stored, or sent to a server. You can fill in the numbers, read the estimate, and close the tab with no trace left behind.