The conversion is one line of arithmetic. The comparison is where people go wrong, because pack and carton prices are quoted in different channels with different tax treatment.
The conversion
Carton ÷ 10 = pack equivalent. Carton ÷ 200 = per cigarette. That is all.
$69.90 carton = $6.99 pack = 35 cents per cigarette. $85.00 = $8.50 = 43 cents. $59.90 = $5.99 = 30 cents.
Where the naive comparison fails
Three ways.
Comparing an untaxed carton to a taxed pack. This is the whole point of the online channel, so the comparison is legitimate — but it is a comparison of tax regimes, not of retail efficiency. Worth being clear about what you are measuring.
Comparing a five-pack to a carton. Listings that say “carton” but ship 100 cigarettes. Always confirm 200.
Comparing per pack without shipping. Add delivery to the carton before dividing.
Why pack prices rose faster than carton prices
They did not, structurally — both track the same tax. What changed is that the online carton channel became more accessible, so the gap between a taxed pack and an untaxed carton widened in perception.
The number that decides it
Your local pack price. Everything follows from it. If you do not know it precisely, check your last receipt rather than estimating — pack prices have moved enough in five years that most people underestimate.
Our break-even table covers the range from $5 to $12 a pack.
A note on state minimum prices
In jurisdictions with a minimum price floor, the pack price is fixed and discounting is illegal. That makes the comparison simple: the carton either beats the floor or it does not.
Why the same cigarette has three different prices
The identical pack can carry three prices in the same week, and none of them is wrong. A convenience store charges for immediate access and card processing on a small ticket. A supermarket charges less because it sells volume and can absorb a thinner margin per unit. An online carton seller charges a third price entirely, because the transaction is larger, the fulfilment is cheaper per pack, and the buyer accepts a wait.
Once you see those as three different services rather than three attempts to sell the same thing, the comparison stops being confusing. The question becomes which service you actually want, not which price is real.
The per-pack price is the only honest unit
Cartons, packs, five-pack bundles and cases are all sold somewhere, and sellers quote whichever unit makes their number look best. The only way to compare across them is to reduce everything to cost per pack and then to cost per cigarette. A carton at $79 is $7.90 a pack. A five-pack bundle at $42 is $8.40 a pack, which is worse than it looks. A single pack at $9.50 is $9.50.
Do that conversion before you read any other number on a listing, including a discount percentage. A “20 percent off” badge on a bundle priced above the carton rate is a discount off a number nobody should have been paying.
The shipping allocation problem
Shipping is a fixed cost per order, which means it is a variable cost per carton. One carton with $15 shipping adds $1.50 to every pack inside it. Six cartons with the same $15 shipping adds 25 cents. That is the entire argument for buying more at once, and it is arithmetic rather than marketing.
It also means the fair comparison for a bulk buyer is not “carton price versus pack price” but “delivered carton price versus pack price”. Those are different numbers, and the gap between them is usually 15 to 20 percent.
Where the pack still wins
Three cases. When you smoke less than half a pack a day, so a carton lasts months and the storage and freshness costs outweigh the saving. When you want to try a brand before committing to ten packs. And when you are travelling and cannot receive a delivery. None of those are defeats for the carton channel; they are just situations where the pack is the right unit.
The mistake is treating the carton as universally cheaper. It is cheaper per cigarette, not cheaper per decision.
What the price difference is actually buying
At a counter you are buying the ability to walk in and walk out with a pack, at any hour, with no minimum order and no wait. Online you are buying a lower unit price in exchange for planning ahead. Both are legitimate. A smoker who buys a carton online and then buys packs at a counter when they run out has simply paid for both services, which is fine as long as they know that is what happened.