What is lifetime spending?
Lifetime spending is the total amount of money that one recurring expense has taken from you over the years. A coffee, a lunch out, a pack of cigarettes, a streaming subscription or the monthly rent each look small or ordinary on the day you pay for them. Added up over 10, 20 or 30 years they become one large number — and that number is usually a surprise. The calculator shows the total you have spent so far, the share of everything you earned in that time, the number of work days it took to pay for it, and what the same money could have grown to if you had invested it.
How do you calculate how much you have spent on a habit?
Start with what the habit costs each time and how often you pay for it. Convert that to a yearly cost: a daily habit is multiplied by 365, a weekly one by 52 and a monthly one by 12. Then multiply the yearly cost by the number of years you have had the habit. To see what this means for your working life, divide the total by what you earn in one work day. The calculator uses 260 work days a year. To see your pay for each day and each hour, use the salary to hourly calculator.
What is the lifetime spending formula?
The total is Lifetime spending = Cost each time × Times per year × Years. The share of your income is Share of earnings = Lifetime spending / (Monthly take-home pay × 12 × Years) × 100. The work time is Work days = Lifetime spending / (Monthly take-home pay × 12 / 260). The invested value uses the future value of a monthly payment: FV = M × ((1 + r/12)^(12 × Years) − 1) / (r/12), where M is the monthly cost of the habit and r is a 7% yearly return. All amounts use today's price and today's pay for every year, so the result is a simple estimate and not an exact history.
What are some lifetime spending examples?
These examples show how fast ordinary costs add up:
- $5 coffee every day for 20 years, $3,000 monthly pay — $1,825 a year, $36,500 in total. That is 5.1% of everything earned and 264 work days. Invested at 7% it would be about $79,224.
- $5.50 latte, 5 times a week for 10 years — $1,430 a year, $14,300 in total, or about $20,626 if invested.
- $12 lunch every day for 15 years, $3,000 monthly pay — $4,380 a year, $65,700 in total and 475 work days.
- $1,000 rent a month for 10 years, $2,500 monthly pay — $120,000 in total. That is 40% of everything earned and 1,040 work days: four full work years.
- $15 subscription a month for 8 years — $1,440 in total. Small, but most people have more than one.
When is a lifetime spending calculation useful?
It is useful when you want to decide if a habit is worth its price. A yearly or lifetime total is easier to compare with a goal than a daily price: $1,825 a year is a holiday, and $36,500 is a deposit on a home in many places. It also helps with rent and commuting, where the question is not "should I stop?" but "what share of my working life goes here?". If the number makes you want to redirect the money, the savings goal calculator shows how fast the same monthly amount gets you to a target.
What is the latte factor?
The latte factor is an idea made popular by the author David Bach: small, regular purchases cost much more than they seem to, because you lose the money and also the growth that money could have had. A $5 daily coffee is $36,500 over 20 years, but the same payments invested at 7% a year would be worth about $79,224. The second number is the opportunity cost. Critics correctly say that housing, transport and pay have a larger effect on wealth than coffee, so use the latte factor to see a cost clearly and not as a reason to feel bad about small pleasures. Prices also go up with time — the inflation calculator shows how much.
How much does the average person spend on coffee in a lifetime?
Published estimates are very different because they use different assumptions. One survey of 2,000 Americans found an average of about $11 a week, which is near $25,000 over a 45-year working life. A British study of takeaway coffee gave more than £29,000. Estimates that count every cup at coffee shop prices are above $100,000. Your own number depends on your price and your frequency, so enter your real habit: one $3 coffee each work day for 40 years is about $31,200, and two $5 coffees every day for 40 years is $146,000.