How it works
Grow balance at annual rate/12, then withdraw the fixed amount monthly; report full withdrawals and final partial withdrawal.
Input definitions
- Starting savings
- Enter the value in the labeled unit.
- Withdrawal at month end
- Enter the value in the labeled unit.
- Nominal annual return (%)
- Enter the value in the labeled unit.
A worked example
- Starting savings
- 1200
- Withdrawal at month end
- 100
- Nominal annual return (%)
- 0
Assumptions & limits
Single-currency planning model using entered rates; two-decimal half-up currency rounding. No taxes, regulatory APR, live quote or investment-return prediction unless explicitly stated.
Sources & review
Maintained by AnsRio. Methods and examples use automated checks; this does not imply independent professional certification.
Method updated 2026-10-17. Content checked against the stated method and examples. Our verification approach.
Common questions
Are these investment and borrowing results guaranteed?
No. These are deterministic estimates from the inputs and stated method, not predicted returns or lending offers. Actual fees, tax, timing and contractual terms may differ.
How does the How long will savings last? tool work?
Grow balance at annual rate/12, then withdraw the fixed amount monthly; report full withdrawals and final partial withdrawal.
What are the assumptions and limits of How long will savings last??
Single-currency planning model using entered rates; two-decimal half-up currency rounding. No taxes, regulatory APR, live quote or investment-return prediction unless explicitly stated.