Round-Up Savings Calculator
Enter average transactions per day, average round-up per transaction and currency. No interest is included.
Round-Up Savings Calculator
- Daily
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- Monthly approx.
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- Annual
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Annual contributions (365 days)
Approximate month uses 30.44 days; annual total uses 365 days.
Calculations use JavaScript floating-point arithmetic. Display is locale-formatted to 12 significant digits; the TXT report preserves entered raw values and computed numeric values.
A QUICK WALKTHROUGH
How to use this tool
- Enter average transactions per day and average round-up.
- Enter a three-letter currency code.
- Review daily, approximate monthly and annual contributions.
Calculation and scope
Daily = transactions × average round-up; month = daily × 30.44 (approximate conversion); year = daily × 365. No interest or growth.
Limitations
The monthly conversion is approximate and independent of the 365-day annual total. Actual contributions depend on transactions.
GOOD TO KNOW
Common questions
Does this include interest?
No. It totals contributions only.
Why is the month approximate?
It uses 30.44 days per month; this is a stated conversion, not an exact calendar month.