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Smoking Habit Inputs

cigs
%

Results

Total Cigarette Spending

FAQ

It calculates: (daily cigarettes ÷ 20) × pack price = daily cost, then × 30 × 12 × years = total spending. The investment opportunity cost uses an annuity formula — as if you invested that annual amount at your chosen return rate, compounded yearly.
Opportunity cost is what you could have gained by using that money elsewhere. For example, investing ₩200,000/month at 7% annual return for 20 years grows to over ₩100 million.
The long-term average for the S&P 500 is around 10%, and the Korean stock market averages about 7–8%. We use 7% as a conservative default, but you can adjust it freely.
Yes! Select 'E-Cig · 8,000' from the pack price presets, or enter a custom amount. The calculation is based on cartridge equivalent pricing.
A typical cigarette takes 4–7 minutes to smoke. We use 5 minutes as an average that includes preparation and disposal time.
Europe round-trip is estimated at ₩6 million (flights + 7 nights + expenses). MacBook Pro benchmark is ₩3 million.
Yes! Your inputs are saved in the URL, so anyone you share the link with will see the exact same values and results.