Work out what you are really paying per use, and whether it is worth it.
what are you calculating?
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Cost per use calculator
Work out what you are really paying per use.
What is cost per use? Simply what you paid, divided by the number of times you actually use it. A £100 item used 50 times costs £2 per use. The more you use something, the less each use costs you.
What do you want to figure out? Pick one.
Not sure? Most people start with the first one.
Solving for:cost per use
the item
£
how often do you use it?
year-round52 weeks/yr
3 seasons~39 weeks/yr
2 seasons~26 weeks/yr
1 season~13 weeks/yr
almost daily~4 a week
2-3x a week~2-3 a week
once a week~1 a week
occasionally~once a month
times per
1 year
2 years
3-5 yearsmodelled as 4 years
forevercapped at 10 years
yearsmonths
estimated total uses-
uses
-
cost per use
total uses
-
price
-
How the cost per use comes down over time
After 1 year→-per use
After 2 years→-per use
After 5 years→-per use
assumes you keep using it at this pace
For seasonal items, "year 1" means one full autumn-spring cycle of wearing. In calendar terms this can take 12 to 18 months depending on when you bought it, but the cost per wear works out the same.
💡 One more question worth asking
Is there something else you need or want more right now that would be a better use for this money? The numbers tell you the cost per use. Only you can decide if the value matches.
♻️ Could you get it for less?
Before you commit, would you consider buying this secondhand or pre-loved? The same item for a lower price means a lower cost per use from day one, same enjoyment, better value.
Solving for: maximum price worth paying
set your target
£
the cost per use you would feel happy paying for this
how often will you realistically use it?
year-round52 weeks/yr
3 seasons~39 weeks/yr
2 seasons~26 weeks/yr
1 season~13 weeks/yr
almost daily~4 a week
2-3x a week~2-3 a week
once a week~1 a week
occasionally~once a month
times per
1 year
2 years
3-5 yearsmodelled as 4 years
forevercapped at 10 years
yearsmonths
estimated total uses-
-
maximum justified price
estimated uses
-
target cost per use
-
💡 One more question worth asking
Before you decide, is there something else you need or want more right now that would be a better use for this money? The maximum price tells you what is justified on the numbers. Only you can decide if this is the best use of it.
♻️ Could you get it for less?
Would you consider buying secondhand or pre-loved? If you can find it below your maximum price, every use costs even less, and the decision gets easier.
Solving for:uses needed to hit your target cost per use
the item you want
£
£
can you realistically get there?
year-round52 weeks/yr
3 seasons~39 weeks/yr
2 seasons~26 weeks/yr
1 season~13 weeks/yr
almost daily~4 a week
2-3x a week~2-3 a week
once a week~1 a week
occasionally~once a month
times per
1 year
2 years
3-5 yearsmodelled as 4 years
forevercapped at 10 years
yearsmonths
estimated realistic uses-
-
uses needed to hit your target
realistic uses
-
projected cost per use
-
0 uses
⏱️ When you would hit your target
How the cost per use comes down over time
After 1 year→-per use
After 2 years→-per use
After 5 years→-per use
assumes you keep using it at the pace you selected
💡 One more question worth asking
Before you commit, is there something else you need or want more right now that would be a better use for this money? The numbers tell you whether the uses stack up. Only you can decide if this is the best use of it.
♻️ Could you get it for less?
Would you consider buying it secondhand or pre-loved? A lower price means fewer uses needed to hit your target, and a better deal from the start.
a quick affordability check
This helps with one purchase decision, it is not a full financial health check. Everything stays on your device. Nothing is saved.
£
after tax, if your income varies, use a typical month
£
rent or mortgage, bills, food, transport, existing repayments, a rough total is fine
£
optional, helps check whether buying now would eat into your safety net
-
spare each month after outgoings
how are you thinking of paying?
✓ Paying upfront
⚠️ You know your financial situation better than any calculator. But before you spread the cost, three things worth knowing:
1. Spreading the cost is borrowing. It is not free money, even when there is no interest. You are committing future income to a decision you make today.
2. Missed payments can affect your credit score. Buy Now Pay Later providers increasingly report to credit agencies, and missed payments can make future borrowing, like a mortgage, harder or more expensive.
3. Spreading a cost does not reduce it. The same price over four payments is still the same price. It can just make an unaffordable thing feel affordable, which is exactly when it is most worth pausing.
-
to save up and buy it outright
How the estimates are calculated
The tool multiplies your weekly use frequency by the relevant weeks per year, then by the number of years. You can always override with your own number.
Frequency
Almost daily
4 uses per week
2-3x a week
2.5 uses per week
Once a week
1 use per week
Occasionally
0.3 uses per week
Season (clothing only)
Year-round
52 weeks
3 seasons
39 weeks
2 seasons
26 weeks
1 season
13 weeks
Ownership period
1 year / 2 years
as stated
3-5 years
modelled as 4 years
Forever
capped at 10 years
Everything I share is educational, frameworks and ways of thinking, not financial advice. Please consult a qualified professional before making financial decisions. Your situation is unique.
Views expressed are my own and do not reflect those of my employer.