Present Value Formula for Uneven Cash Flows:
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The present value (PV) of uneven cash flows calculates the current worth of future cash flows that are not identical each period, discounted at a monthly rate. This is common in investments with variable returns or irregular payment schedules.
The calculator uses the present value formula for uneven cash flows:
Where:
Explanation: Each cash flow is discounted back to present value using the discount rate, then all discounted values are summed.
Details: Calculating PV of uneven cash flows helps evaluate investment opportunities, compare projects with different cash flow patterns, and make informed financial decisions.
Tips: Enter monthly discount rate as percentage (e.g., 1 for 1%), number of months, and comma-separated cash flows (positive for inflows, negative for outflows).
Q1: What's the difference between even and uneven cash flows?
A: Even cash flows are identical each period (annuities), while uneven cash flows vary in amount each period.
Q2: How do I convert annual rate to monthly?
A: Divide annual rate by 12 for approximate monthly rate, or use (1 + annual_rate)^(1/12) - 1 for exact conversion.
Q3: Can I include an initial investment?
A: Yes, include it as the first cash flow (typically negative for an outflow).
Q4: What if my cash flows extend beyond 100 months?
A: The calculator supports up to 1200 periods (100 years monthly). For longer periods, consider annual cash flows.
Q5: How accurate is this calculation?
A: The calculation is mathematically precise, assuming your discount rate and cash flow projections are accurate.