Conversion Rate Calculator

Conversion rate is the percentage of a defined group of opportunities (visitors, leads, sessions, or any other countable audience) that completed a defined action, calculated as conversions divided by opportunities. It's a single formula used across very different contexts: an e-commerce site tracking purchases per visitor, a SaaS company tracking trial signups per lead, or a mobile app tracking installs per store view are all computing the same ratio with different labels on each side. The number only means something once both the action and the audience it's measured against are clearly defined, since changing either one changes what the rate actually describes, even if the underlying behavior hasn't changed at all.

Divide conversions by opportunities and multiply by 100: Conversion Rate = (Conversions ÷ Opportunities) × 100. 340 conversions out of 8,000 opportunities gives 340 ÷ 8,000 = 4.25%. Both numbers need to come from the same time window and the same audience definition: conversions counted over one period divided by opportunities counted over a different one won't produce a rate that describes either period accurately. Most analytics and CRM platforms report both sides of this ratio automatically, but the underlying formula matters for spotting what moved the number: a rate change can come from more conversions, fewer opportunities, or both moving in opposite directions at once.

Whatever action the business defines as the goal for that specific funnel; there's no fixed list. A purchase, a completed signup form, a qualified lead, a trial start, an app install, or a feature-activation event are all valid 'conversions' depending on what's being measured, and the same website or product can track several different conversion definitions for different funnels at once. The important part isn't picking the 'correct' definition, since there isn't one. It's stating clearly which action is being counted before reading the rate, and keeping that same definition in place whenever the rate gets compared across time, channels, or pages.

CTR measures how often people who saw something clicked it: clicks divided by impressions. Conversion rate measures how often people completed a defined goal, which can happen well after a click, or without a click ever being involved, such as a direct visitor converting on a landing page. A campaign can have a strong CTR and a weak conversion rate if the ad earns clicks the landing page can't turn into anything, or a weak CTR and a strong conversion rate if the few people who do click are highly qualified. The two metrics measure different stages of the same funnel, not two versions of the same measurement.

There's no fixed good number. It depends on the conversion definition, the traffic source, the industry, the device, and how far down the funnel the 'opportunity' side of the fraction is measured. A rate for 'all visitors who made a purchase' will always look lower than a rate for 'checkout starts who completed a purchase,' even from the exact same store on the exact same day, because the denominators describe different populations. Compare conversion rate against your own past performance for the same funnel step, traffic source and conversion definition, not against a published average. A shift in that comparison means something; a gap against an external benchmark usually doesn't.