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Smoking Cost Calculator

Work out how much smoking costs you per day, week, month and year from your own pack price, then see what it adds up to over 1 to 30 years and what the same money could become if invested instead.

How much do you smoke?

Cigarettes per day Average number you smoke on a typical day. Price per pack What one pack costs where you buy it.

Pack size and projection settings

Cigarettes per pack Most packs hold 20; change it if yours differs. Years already smoked Optional. Used to estimate what you have spent so far.

Currency and the "if invested instead" rate

Currency symbol or code Any symbol or short code. It only changes the label, not the maths. Annual investment return Used for the "if invested instead" column: the same money paid in monthly and compounded.

Spent on smoking per year

0per day

0per week

0per month

What it adds up to over the years

Horizon	Cigarettes smoked	Total spent	If invested instead

"If invested instead" treats your monthly cigarette spend as a fixed monthly contribution growing at the annual return you picked, using the future value of an annuity. It assumes the spend and the rate stay the same and ignores price changes, tax and inflation.

Cumulative cost growing over 30 years

Total spent on smoking Same money if invested instead

For beginners: how to read this

The yearly figure is the headlineIt is your daily pack cost multiplied by 365.25 days. The day, week and month tiles are the same spend on shorter timescales.

Packs per day can be a fractionCigarettes per day divided by cigarettes per pack. Smoking 10 from a 20-pack is half a pack, so you pay half a pack price each day.

Projections assume nothing changesThe table simply repeats one year of spend. Real pack prices usually rise, so the long horizons are a conservative floor.

"If invested instead" shows opportunity costIt is what the same monthly amount could become if paid into an investment growing at a steady rate, not a promise of returns.

This tool estimates money only. It is not health, medical or financial advice, and it does not model price rises, inflation, tax or changes in how much you smoke.

To get a result, pick a starting preset for how much you smoke or type your own values: cigarettes per day and the price of one pack where you buy it. Pack price is always your own input, so the figures match your real spending rather than an average.

How the yearly cost is calculated

The calculator first works out how much of a pack you smoke each day. Packs per day equals cigarettes per day divided by cigarettes per pack, so 10 cigarettes from a 20-pack is half a pack. Daily cost is then packs per day multiplied by the pack price. From that single daily figure it builds every other timescale:

Per week: daily cost multiplied by 7.
Per month: daily cost multiplied by 30.44, the average length of a month across a year.
Per year: daily cost multiplied by 365.25, which accounts for leap years.
Over several years: the yearly cost multiplied by the number of years in each horizon.

The headline number is the yearly cost, with the day, week and month figures shown beside it as the same spending on shorter timescales. If you enter how many years you have already smoked, the tool also estimates what that habit has cost you so far.

The projection table and the invested-instead column

The projection table repeats one year of spending across horizons of 1, 5, 10, 20 and 30 years. For each horizon it shows three things: the total number of cigarettes smoked, the total money spent, and what the same money could have become if invested instead. The invested-instead column treats your monthly cigarette spend as a fixed monthly contribution and applies the future value of an annuity: with a monthly rate equal to the annual return divided by twelve, the future value is the contribution multiplied by ((1 + rate) raised to the number of months, minus one) divided by the rate. You can change the annual return used for this estimate. It shows opportunity cost, not a guaranteed return.

The cumulative cost chart

The chart plots how the total spend grows year after year as bars, with a line showing the same money invested instead. It makes clear how a small daily amount compounds into a large sum over a working lifetime.

What is not included

This tool estimates money only. It does not model rising pack prices, inflation, tax changes, or changes in how much you smoke over time, and it is not health, medical or financial advice. Real pack prices usually rise, so the long horizons are best read as a conservative floor for what smoking costs.