Weekly Spend Calculator
Totals a week of spending and estimates the monthly figure.
Recent
Formula
How the calculation works
The weekly total counts five weekdays and two weekend days, which is why the two daily figures are weighted differently.
Multiplying the week by 52 and dividing by 12 gives a monthly estimate that accounts for the uneven length of months.
Separating the two day types is what makes the total honest, because weekend spending is often several times the weekday figure.
Common mistakes
- Treating the weekly total as four weeks exactly understates a month, since most months run about four and a third weeks.
- Using one flat daily figure hides the weekend spike and produces a total that never matches what actually leaves the wallet.
When to use it
- Use it to turn a rough sense of daily spending into a weekly and monthly figure you can plan around.
- For exact accounting use your bank statement instead, because this tool works from an assumed weekday and weekend rate.
Worked example
300 on weekdays and 800 at weekends gives 3100 a week, about 13433 a month.
Common questions
Why separate weekday and weekend?
Weekend spending is often much higher, so splitting them gives a more honest weekly total.
Is the monthly figure exact?
It is an estimate from 52 weeks, so use it for planning rather than exact accounting.
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