Work out savings from quitting a habit instantly with clear inputs, formula shown and shareable results.
The daily cost is annualised, then treated as a monthly contribution into an ordinary annuity at the given return to show the compounded value. Compounding turns a small daily habit into a meaningful sum: six a day for five years is about eleven thousand invested rather than the ten thousand simply saved.
Annuity value
future value = monthly amount x ((1 + monthly rate)^months - 1) / monthly rate
future value = monthly amount x ((1 + monthly rate)^months - 1) / monthly rate. The daily cost is annualised, then treated as a monthly contribution into an ordinary annuity at the given return to show the compounded value.
Compounding turns a small daily habit into a meaningful sum: six a day for five years is about eleven thousand invested rather than the ten thousand simply saved.
Enter daily cost of the habit, years to project, annual return if invested. The defaults shown are a realistic worked example — swap in your own figures to get a result you can use.