Revenue lost to mobile under-conversion vs desktop performance.
Inputs
Results
Monthly revenue lost—
Mobile CR % of desktop
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Mobile share of traffic
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Annual lift @ desktop parity
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Closing-the-gap scenarios
Mobile reaches…
New Mobile CR
Added Orders/mo
Added Revenue/mo
About this calculator
Mobile traffic is 60-70% of most ecommerce sites in 2026, but mobile conversion rate typically lags desktop by 30-50%. The math says: closing the mobile/desktop gap is usually the single highest-leverage CRO investment available. Yet most operators run their A/B testing program on the homepage and PDP without ever running mobile-specific checkout tests.
The diagnostic question this tool answers is "how much revenue am I leaving on the table?" Mobile sessions × (desktop CR − mobile CR) × AOV = monthly opportunity at full parity. Even reaching 80% of desktop CR usually produces 5-figure monthly revenue lifts for stores with $100K+ monthly revenue.
The fix areas in priority order: checkout (Apple Pay / Shop Pay / Google Pay above the fold often lifts mobile CR 15-25% alone), page speed (mobile LCP under 2.5 seconds is the baseline; over 4 seconds typically halves CR), and form-field UX (autofill-friendly attributes, numeric keyboards for cards/ZIP, mobile-optimized field sizes).
Pair this with the Page Speed Revenue Calculator (which quantifies the speed-to-revenue relationship) and the Conversion Rate Impact tool (which models what each 0.1% CR improvement is worth). Together they tell you which CRO investments produce the most revenue per dollar spent.
Frequently asked questions
Why is mobile CR usually lower than desktop?
Smaller screen, harder typing, more distractions, slower connections (sometimes), checkout friction (auto-fill works less reliably). On average, ecommerce mobile CR is 30-50% lower than desktop CR for the same store. Closing that gap is one of the highest-leverage CRO investments because mobile is 60-70% of traffic.
What's a "good" mobile CR?
Premium DTC: 1.5-2.5%. Average DTC: 0.8-1.5%. Below 0.8% on mobile (with desktop at 2-3%) usually means a checkout problem specifically — auto-fill failing, payment options limited, mobile-unfriendly fields.
Why is closing the gap worth so much?
Because mobile has the most traffic. If 65% of your sessions are mobile and mobile CR is 0.8% vs 2.0% desktop, you're leaving the bulk of your visitor population converting at less than half the rate. Bringing mobile to 80% of desktop CR (1.6%) often produces a 30%+ revenue lift.
What fixes mobile CR fastest?
Three high-leverage areas: (1) checkout — Apple Pay, Shop Pay, Google Pay should be visible above the fold; (2) page speed — mobile LCP <2.5s is a baseline target; (3) form fields — autofill-compatible attributes, mobile-friendly inputs (numeric for ZIP/card, no autocaps for email).
Should mobile CR ever match desktop?
Aspirationally yes. Best-in-class DTC sometimes has mobile CR equal or higher than desktop because mobile customers are often higher-intent (returning customers using saved payment). Most operators should target 80% of desktop CR as a realistic mobile benchmark.