vs Target Payback
0.14 yrsAhead of targetPayback Period Calculator
Calculate simple payback period, discounted payback, project recovery timing, NPV, ROI, profitability index, and side-by-side project comparisons.
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Payback Period Calculator
Calculate simple payback, discounted payback, recovery timing, NPV, ROI, and side-by-side project payback comparisons.
Simple payback period
Simple payback measures how long it takes to recover the initial investment from nominal cash flows. It is useful for liquidity risk, but it does not measure time value of money.
Payback meets target
This project recovers the initial investment in 2.86 yrs, which is 0.14 years faster than the target.
Payback Period
2.86 yrsRecovered within 8 year analysis periodRecovery Progress
280.00%Total cash flow: $280,000Year-by-year cash flow recovery
| Year | Cash Flow | Cumulative CF | Unrecovered | Recovery |
|---|---|---|---|---|
| 1 | $35,000 | $35,000 | $65,000 | 35.00% |
| 2 | $35,000 | $70,000 | $30,000 | 70.00% |
| 3 | $35,000 | $105,000 | $0 | 105.00% |
| 4 | $35,000 | $140,000 | $0 | 140.00% |
| 5 | $35,000 | $175,000 | $0 | 175.00% |
| 6 | $35,000 | $210,000 | $0 | 210.00% |
| 7 | $35,000 | $245,000 | $0 | 245.00% |
| 8 | $35,000 | $280,000 | $0 | 280.00% |
Payback scenarios
If cash flows 25% higher2.29 yrs
If cash flows 25% lower3.81 yrs
Cash flow needed for 2-year payback$50,000
Cash flow needed for 1-year payback$100,000
If investment was 20% lower2.29 yrs
Formula
How payback period is calculated
Payback period measures how long it takes for cumulative cash flows to recover the original investment. For constant annual cash flow, divide the initial investment by the annual cash flow.
Payback period = initial investment ÷ annual cash flow
Uneven payback = years before recovery + unrecovered amount ÷ next year cash flow
Discounted method
Why discounted payback is more conservative
Discounted payback converts future cash flows into present value before measuring recovery. Because future money is worth less today, discounted payback is usually longer than simple payback.
PV of cash flow = cash flow ÷ (1 + discount rate)^year
NPV = PV of cash flows − initial investment
Use cases
When to use this Payback Period Calculator
Use it to evaluate project recovery timing, compare liquidity risk, review discounted recovery, and decide whether a project meets a target payback period.
Calculate how long it takes to recover an initial investment
Use the result as a planning estimate, then review NPV, IRR, ROI, cost of capital, risk, and professional advice before making a capital decision.
Compare simple payback period with discounted payback period
Use the result as a planning estimate, then review NPV, IRR, ROI, cost of capital, risk, and professional advice before making a capital decision.
Evaluate uneven annual cash flows and cumulative recovery
Use the result as a planning estimate, then review NPV, IRR, ROI, cost of capital, risk, and professional advice before making a capital decision.
Check whether a project meets a target payback period
Use the result as a planning estimate, then review NPV, IRR, ROI, cost of capital, risk, and professional advice before making a capital decision.
Compare two projects by payback, NPV, ROI, and liquidity risk
Use the result as a planning estimate, then review NPV, IRR, ROI, cost of capital, risk, and professional advice before making a capital decision.
Estimate break-even cash flow and downside payback scenarios
Use the result as a planning estimate, then review NPV, IRR, ROI, cost of capital, risk, and professional advice before making a capital decision.
Calculator details
Payback Period Calculator formula, assumptions, and examples
Last updated: July 2026
Formula used
Formula used
Payback Period Calculator uses the values you enter to estimate totals, rates, percentages, payments, balances, or comparison results for planning.
Assumptions
Assumptions
- The numbers entered are accurate and use the same currency or time period.
- Rates, taxes, fees, deductions, and contribution rules can change.
- Rounding, timing, and real-world provider rules may cause small differences.
Example calculation
Example calculation
Enter a simple payback period calculator scenario, review the estimated result, then adjust one input at a time to compare outcomes.
When to use this calculator
When to use this calculator
Calculate how long it takes to recover an initial investment
Disclaimer
Disclaimer
This calculator is for estimation and educational use only. It does not replace professional financial, tax, legal, mortgage, investment, or accounting advice.
Questions
Frequently Asked Questions
What is payback period?
Payback period is the time required for cumulative cash flows to recover the initial investment. A shorter payback usually means lower liquidity risk, but it does not measure all project value.
How do I calculate payback period?
For constant cash flow, divide the initial investment by the annual cash flow. For uneven cash flows, add each period's cash flow until the investment is recovered, then prorate the final period.
What is discounted payback period?
Discounted payback measures recovery using the present value of each cash flow. It accounts for the time value of money, so it is usually longer than simple payback.
Should I choose the project with the fastest payback?
Not always. Fast payback can reduce liquidity risk, but the highest-value project may have a longer payback. Review NPV, IRR, ROI, risk, and strategic fit before deciding.
