The forecourt funnel
Fuel brings drivers onto the site, but the money is in the shop. Most operators have only a rough idea of how many people make the walk from pump to door, and an even rougher idea of why the rest don't.
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Every fuel customer is already on your site. They have stopped the car, their wallet is out, and they are standing less than twenty metres from the shop door. The conversion opportunity does not get warmer than this, yet on most forecourts the majority of them get back in the car without ever going inside.
Understanding why, and measuring the rate precisely, is one of the most direct profit levers available to a forecourt or convenience retail operator.
The margin is not in the fuel
In the US, fuel carries a gross markup of roughly 35 cents a gallon, about a tenth of the pump price, and the retailer keeps about a third of that as pre-tax profit, according to NACS. Fuel is a traffic driver: a reliable reason to stop, not a profit centre.
In the shop, the economics change. Prepared food and beverages, the highest-turning lines in a good forecourt shop, carry far higher margins than anything achievable at the pump. In the US, fuel makes up about 65% of a convenience retailer’s sales but under 39% of its gross profit; the shop earns the rest. The site’s margin therefore depends on how many drivers make the walk from pump to shop.
What the pump-to-store conversion rate actually looks like
Ask drivers and the picture looks better than it is. In a 2026 NACS consumer survey, 62% of US drivers said they went inside the last time they bought fuel. Counted visits tell a different story. In a Swedish petrol chain we measured across more than 100 stations, typically around one driver in five went from the pump into the shop, and the rate varied widely between stations: from 8 to 55 percent in one measured period. Most drivers who stopped for fuel left without going inside. The gap between what drivers report and what a count shows is the reason to measure your own sites.
Site format and offer matter too. Lightstone’s vehicle-tracking data from South Africa found that a branded food partner lifts the share of passing drivers who turn in to the site: 8.1% at BP sites with a Pick n Pay store against a 4.9% BP average, and 9% at Engen sites with a Woolworths against 5.3% across Engen.
For a multi-site operator running dozens or hundreds of locations, even a percentage-point shift in conversion across the estate makes a material commercial difference.
What drives the walk to the door
Promotional visibility is consistently one of the strongest factors.
GSTV, which runs advertising screens at the pump, told a 2024 industry conference, as reported by CSP Daily News, that around 40% of shoppers who had not planned to go inside could be persuaded to do so by an advertisement at the pump.
Many conversion decisions are made at the pump, before the customer reaches the shop, so what customers can see from the forecourt matters as much as the shop’s internal layout.
Food and drink offer is another strong driver. Sites with a credible foodservice offer (a coffee machine customers trust, a hot food counter with recognisable brands) show better conversion rates than sites where the shop is primarily ambient packaged goods. The walk from pump to door needs a reason, and a cup of coffee is a better reason than a can of motor oil.
Speed matters too. A customer who expects a slow visit (a long queue, an unclear layout, thin staffing) is less likely to attempt it on a time-constrained fuel stop. Visitor analytics for petrol stations and convenience retail includes dwell time by zone, showing operators when and where the shop experience is suppressing conversion before it registers on the till.
The measurement problem
Most operators lack a precise, continuous conversion rate. They have till receipts, which show how many transactions happened inside. They may have approximate forecourt entry counts from a loop detector. What they typically do not have is a clean daily figure showing how many people were on the forecourt versus how many entered the shop, broken down by hour, day of week, or site.
Decisions about staffing, promotional investment, and shop layout end up being made on sales trends rather than footfall behaviour. Sales rise after a coffee machine is installed, but without knowing whether shop entries increased or existing shoppers just spent more, attributing causation is guesswork, and predicting what would happen at a different site is impossible.
Gas station chain analytics requires both numbers. Forecourt arrivals, measured at the site perimeter, and shop entries, measured at the shop door, together produce a conversion rate trackable over time and comparable across sites. The data deliverables from continuous footfall monitoring include hourly and daily counts at each measurement point; the conversion rate is a derived metric from those two streams.
Where the funnel leaks
Some drivers decide at the pump: they are in a hurry, the weather is poor, or nothing they saw gave them a reason to move. Some start walking and divert to the car wash or the air machine. Some enter the shop but leave without buying; the in-store conversion rate from entry to transaction is a separate funnel stage with its own dynamics. And some never intended to go inside, whatever the site offers.
Footfall data can show where in the journey the volume is being lost. A site where forecourt arrivals are high but shop entries are low has a different problem from one where shop entries are reasonable but dwell time and transaction rate are low, and the two call for different interventions with different priorities.
Measuring the rate continuously
The forecourt funnel is a ratio of arrivals on site to entries into the shop, and it can be measured continuously. Wi-Fi-based people counting at the shop entrance, combined with forecourt sensor data, produces that ratio without cameras pointed at customers and without adding operational complexity for staff already managing a busy site.
The measurement is anonymous throughout. The system produces counts: how many people were on the forecourt each hour, how many entered the shop and what the resulting conversion rate was. No individual is tracked, and no behaviour is attributed to a named person. The in-store conversion rate from entry to transaction is a separate funnel stage, but it starts here, with the pump-to-door number that most operators currently estimate and that GDPR-compliant footfall analytics makes measurable.
Sources
- Lenard, J. (2026, April). Who’s buying your gas? NACS Magazine. https://www.nacsmagazine.com/Issues/April-2026/Who%E2%80%99s-Buying-Your-Gas
- NACS (2026, 15 April). U.S. convenience in-store sales top $340 billion. https://www.convenience.org/stay-current/news/2026/april/15/u-s-convenience-in-store-sales-top-$340-billion
- Lenard, J. (2025, 4 February). Who makes money selling gas? NACS. https://www.convenience.org/stay-current/conveniencecorner/who-makes-money-selling-gas
- Adam, D. (2024, 20 May). GSTV’s Kristal Walton outlines retail media’s persuasion at the pump. CSP Daily News. https://www.cspdailynews.com/general-merchandisehbc/gstvs-kristal-walton-outlines-retail-medias-persuasion-pump
- WARC (2019, 19 August). Loyalty schemes aren’t enough for S Africa’s drivers. Sourced from Bizcommunity. https://www.warc.com/en/article/loyalty-schemes-aren%27t-enough-for-s-africa%27s-drivers-561afec21ab54084ac11c2abcc5a93de
Curious what this looks like for your venue?
- 38.8%
- Fuel's share of US c-store gross profit
- ~20%
- Typical pump-to-store capture in a Swedish chain we measured
- 8 to 55%
- Spread between that chain's stations in one period
- 40%
- Uninterested shoppers persuadable by a pump ad (GSTV)
Frequently asked questions
What is a typical forecourt-to-store conversion rate?
It varies widely. In a Swedish petrol chain where Bumbee Labs measured more than 100 stations, typically around one driver in five went from the pump into the shop, and individual stations ranged from 8 to 55 percent in one measured period. Site format, location, offer quality and a branded food or retail partner all play a part. The only way to know your site's actual rate is to measure it.
Why does it matter whether a fuel customer enters the shop?
Fuel margins are thin: in the US the gross markup is around 35 cents a gallon, and the retailer keeps about a third of that as pre-tax profit. In-store products, particularly prepared food and beverages, carry higher margins. NACS figures show fuel making up about 65% of US convenience retailers' sales but under 39% of their gross profit. Turning a fuel visit into a shop visit is one of the biggest levers a site operator has.
How can a forecourt operator measure pump-to-store conversion?
The conversion rate is the ratio of shop entries to forecourt arrivals. Both numbers need to be counted separately and accurately: total vehicles or people on the forecourt, and total people entering the store. Footfall sensors at the forecourt perimeter and at the shop entrance make this calculation continuous and auditable, rather than estimated from till receipts.
What interventions improve shop entry rates from the forecourt?
Promotional visibility at the pump is consistently one of the strongest levers. GSTV, which runs screens at the pump, told the 2024 Sweets & Snacks Expo that around 40% of shoppers who had not intended to go inside could be persuaded to do so by advertising at the pump. Branded food partners have also been linked to more drivers turning in to the site. The challenge is isolating which interventions work at your site, which requires measuring the conversion rate before, during, and after any change.