Monthly Saving Needed for a Goal
Find a monthly contribution that reaches a target at a chosen time. The model separates growth of existing savings from future end-of-month deposits under one constant rate.
- Runs in your browser
- Nothing is uploaded
- No signup; device limits apply
Numbers stay on your device. Nothing is sent to a server.
How to use this tool
Enter USD goal, current savings, annual rate and years. If the goal is expressed in today’s purchasing power, adjust it separately because the form does not automatically add inflation.
Results and examples
Distinguish the monthly requirement from total future contributions. A zero means current savings reach the goal under the assumed rate, not that investment performance or completion is guaranteed.
Worked example
A USD 14,000 target less USD 2,000 already saved over one year at 0% requires USD 1,000 monthly.
Limitations
- Changing returns, taxes, fees and missed contributions are excluded.
- The target does not increase automatically with inflation.
Fields
| Field | Guidance and constraints |
|---|---|
| Savings goal | Accepted range: 1–100000000 · Input step: 100 |
| Already saved | Accepted range: 0–100000000 · Input step: 100 |
| Annual interest rate | Accepted range: 0–40 · Input step: 0.1 |
| Years to goal | Accepted range: 0.25–60 · Input step: 0.25 |
Data handling
Processing stays in the current browser tab; the site does not upload tool input for the calculation itself.
Sources
Frequently asked questions
Does zero interest work?
Yes. It divides the shortfall by the number of months.
Does a zero deposit guarantee success?
No. It is conditional on the fixed rate entered.
Related tools
You do not need to start over. Continue with the tool that fits your next step.
