Find a monthly saving amount for a target and deadline.
Calculated in your browser. No account required. Illustrative estimate. Review the assumptions before using the result.View calculation table
How this calculation works
Monthly saving = max(0, (Target − P(1+i)^n) × i / ((1+i)^n−1)).
Monthly compounding and end-of-month contributions are assumed. At 0%, divide the remaining target by the number of months.
A worked example
To grow $2,000 to $14,000 over one year at 0%, save $1,000 each month.
Assumptions and limitations
A fixed nominal rate is assumed. No taxes or fees. If existing savings already grow to the goal, the required new contribution is zero.
Common questions
Why can my actual result differ?
A fixed nominal rate is assumed. No taxes or fees. If existing savings already grow to the goal, the required new contribution is zero.
Are my inputs saved?
The calculator code processes inputs within your browser and does not send them to our server or save them in browser storage. Downloads and copied summaries remain under your control.