How many hours of work does it cost?
Price tags are written in the wrong currency. On a $75,000 salary over Australia's standard 38-hour week, an after-tax hour is worth about $28.47 — which reprices a $1,400 phone as 49 hours on the clock: six and a half working days. Henry David Thoreau made the argument in Walden in 1854: the true cost of a thing is the amount of life exchanged for it. The widget below does the exchange rate.
Net hourly = salary × (1 − tax%) ÷ (hours/week × 52). The tax slider is a rough average rate, not a bracket calculation — nudge it to match your last payslip. General information, not financial advice.
An idea with a long pedigree
Thoreau priced his Walden cabin in labour in 1854. The modern method arrived in 1992 with Your Money or Your Life, in which Vicki Robin and Joe Dominguez told readers to compute a "real hourly wage" — pay after tax, divided by hours after commuting and recovery — and then convert every purchase into "life energy." The book sold over a million copies and quietly seeded the FIRE (financial independence, retire early) movement, whose core accounting trick is exactly this page's: once spending is denominated in hours of your finite life, the question "is it worth it?" finally has units.
Why hours beat dollars for intuition
Dollars suffer from what behavioural economists call scale insensitivity — $45,000 and $46,400 feel identical, though the $1,400 gap is that phone again. Hours resist the numbing: 49 hours is next week, and next week is vivid. The conversion also exposes proportionality your pay slip hides. Someone on $150,000 buys the same phone for 24.6 of their hours; someone on the minimum wage may surrender three weeks. Same shop, same shelf, wildly different prices — the sticker just refuses to say so.
Using it without becoming insufferable
The failure mode of hour-pricing is auditing every coffee into joylessness. The sustainable version is coarser: run the conversion only on purchases above one working day, and on anything recurring. Recurring is where it bites — the $5.50 daily coffee is trivial per cup and roughly 70 after-tax hours per year, nearly two full working weeks, which is a fact worth knowing even if the verdict is "worth it, gladly." Decide in hours, pay in dollars, and let the small stuff stay small.
Questions people actually ask
Why calculate on after-tax pay?
Because you cannot spend gross dollars. A $75,000 salary sounds like $37-something an hour, but after a rough 25% average tax it is closer to $28.47 for a 38-hour week — and it is those dollars that meet the price tag. Using gross pay flatters every purchase by your tax rate, which is exactly the flattery this page exists to remove.
Shouldn’t commuting time count too?
A strong argument says yes. Your Money or Your Life, the 1992 book by Vicki Robin and Joe Dominguez that popularised this whole method, computes "real hourly wage" by adding commuting, work clothes, decompression time and job-related costs — which can slash an apparent $28/hour to under $20. This widget keeps the conservative version; if you want the honest-brutal version, add your weekly commute hours to the hours/week box and watch every price tag inflate.
Is this just a trick to make me feel guilty about coffee?
No — it cuts both ways. The same arithmetic that prices a year of daily coffees at a week and a half of work also reveals that some feared purchases are small: on the default numbers, a $160 dinner for two is under six hours. The point is not austerity; it is pricing things in a unit your intuition actually understands, then choosing on purpose.
Embed this calculator
Free to use on your own site — it links back here.
Sources
- Henry David Thoreau, Walden (1854) — the cost-of-a-thing-in-life argument, chapter one ("Economy").
- Vicki Robin & Joe Dominguez, Your Money or Your Life (1992) — the "real hourly wage" and "life energy" method.
- Fair Work Act 2009 (Cth), National Employment Standards — the 38-hour standard full-time week used in the default example.
- Worked figures ($28.47/hour; 49.2 hours for $1,400) reproducible from the formula shown under the widget.
Related
Every shop in the world prices in dollars because nobody would buy anything priced in Tuesdays.