How it works
NPV = −initial outlay + Σ cashflow[t]/(1+rate)^t, with the first flow at the end of period 1.
Input definitions
- Initial cash outlay at time zero
- Enter the value in the labeled unit.
- Period-end net cash flows: comma or whitespace separated
- Plain text; maximum 200,000 characters.
- Discount rate per period (%)
- Enter the value in the labeled unit.
A worked example
- Initial cash outlay at time zero
- 1000
- Period-end net cash flows: comma or whitespace separated
- 600,600
- Discount rate per period (%)
- 10
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 Net present value (NPV) tool work?
NPV = −initial outlay + Σ cashflow[t]/(1+rate)^t, with the first flow at the end of period 1.
What are the assumptions and limits of Net present value (NPV)?
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.