Net Worth

$385KTop 42%

PeakWorth

$4.2M+$182K

FI Age

50y 1m-11mo

2 min

See your Work Optional Date

SneakPeak

🥗 Tradeoffs You Can Feel

Buying lunch every workday = years of late retirement.

$15 sounds harmless. Five days a week × 40 working years compounds into a number that buys back years of your life. Move the sliders. Watch your FI Age change.

Workday Lunch Calculator

What does buying lunch every day actually cost you?

Typical price per lunch

$15.00

How many lunches per week?

5/wk

Your age today

Age 28

This habit is costing you

12.5 yrs

of financial freedom

Lifetime Spend

$144.3K

37 yrs

If Invested @ 7%

$625.3K

by age 65

That habit costs you 12.5 yrs of freedom — or $625.3K of future net worth. 🥗

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PeakWorth
The True Cost of lunch

My lunches habit costs me

12.5 yrs

of freedom

Lifetime Spend

$144.3K

If Invested

$625.3K

5 lunches/wk · $15.00 each · from age 28 to 65, invested at 7%

Most people get this wrong. Check yours →

PeakWorth — educational projections only. Not financial, tax, or legal advice. See peakworth.com/disclosures.

More:

Lunch is the most-defended bad financial habit

Coffee gets all the attention but buying lunch is usually the bigger leak. A $15 lunch is roughly 3x what a $5 home-packed equivalent costs. Five days a week × 40 years is a six-figure problem.

Packing lunch isn't about deprivation. The same $4 of groceries becomes a perfectly good salad, sandwich, or rice bowl. The only thing you're 'giving up' is the walk to the food court.

Or don't. The whole point is that you know the number now and choose with full information.

Frequently asked questions

Is packing lunch really that much cheaper?

Yes — almost always. The marginal cost of one extra serving when you already cook dinner is $2–4. The same prepared lunch sold to you costs $10–18. The 3–4x markup is consistent across cuisines and cities.

What about the time cost of packing?

Most lunch-prep adds 5–10 minutes to dinner cleanup. At a $40/hour wage, that's ~$5 of time vs ~$10 of savings — still a net win, before accounting for compound returns.

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