How Long Does a Pack of Cigarettes Last? 5 Factors (2026)
A common question when planning your buying is: how long does a pack of cigarettes last? The answer depends on the pack size and how much you smoke, but knowing the maths helps you decide between packs and cartons. This guide explains how long a pack lasts, what affects it, and how to plan your buying in Australia.
Adult-only note: This article is for adults of legal smoking age. It offers no medical advice and makes no health or quitting claims. Always confirm current Australian regulations before purchasing.

How Long a Pack Lasts
Packs come in different sizes, commonly 20, 25 or 30 cigarettes, though sizes vary by brand. How long a pack lasts simply depends on the pack size divided by how many cigarettes you smoke per day. Working this out helps you judge whether buying single packs or cartons makes more sense for your routine.
| Pack size | At 10/day | At 20/day |
|---|---|---|
| 20 cigarettes | ~2 days | ~1 day |
| 25 cigarettes | ~2.5 days | ~1.25 days |
| 30 cigarettes | ~3 days | ~1.5 days |
5 Factors That Affect How Long a Pack Lasts
- Pack size. 20, 25 or 30 cigarettes makes an obvious difference.
- How much you smoke. Daily count is the biggest factor.
- Cigarette length. King-size lasts longer per stick than slim.
- Sharing. Packs shared between people deplete faster.
- Freshness. Stale packs may be finished sooner or wasted.
Planning Your Buying
Once you know how long a pack lasts you, planning is easy. If a pack lasts a day or two, a carton is the better value choice and means fewer reorders. If you smoke occasionally, single packs avoid waste. Browse packs and cartons in the cigarettes range and singles in the cigarette packets section.
Frequently Asked Questions
How many cigarettes are in a pack?
It varies by brand, but common pack sizes are 20, 25 or 30 cigarettes. Always check the pack to confirm the exact count.
How long does a 20 pack last?
It depends on how much you smoke. At around 10 a day a 20 pack lasts roughly two days; at 20 a day, about one day.
Is it cheaper to buy a carton than packs?
Yes. A carton lowers the per-stick price compared with single packs, so if a pack lasts you only a day or two, a carton is the better value.
Do longer cigarettes last longer?
Per stick, yes — king-size cigarettes burn longer than slim ones. But how long a pack lasts overall still depends mainly on how many you smoke.
Final Word
How long a pack of cigarettes lasts comes down to pack size and how much you smoke. Work out your own rate and use it to choose between packs and cartons. Browse the cigarettes range, and review the latest official tobacco guidance from the Australian Department of Health before you buy.