global • USD

Cost-Benefit Analysis Calculator

Evaluate project viability with benefit-cost ratio, net benefit, and ROI. Include intangible benefits, apply discount rates, and run sensitivity analysis. Free, no sign-up.

Last revised 2 September 2026

By Team GlobalCalqulate · About our editorial standards

Project Financials

Total Costs ($)

Sum of all direct and indirect costs.

Total Benefits ($)

Sum of all quantifiable benefits.

Discount Rate (%)

For present value calculation (typically 5-10%).

Project Timeframe (Years)

Duration of the project for discounted analysis.

Intangible Benefits ($)

Non-monetary benefits assigned value.

Intangible Costs ($)

Non-monetary costs assigned value.

Show how changes affect BCR.

Financial Disclaimer: This result is an educational estimate produced by applying a standard formula to the figures you entered. It is not an offer, a quotation, or financial advice: real costs and returns depend on a provider's pricing, fees and underwriting, and on circumstances this calculator does not collect. Confirm the figures with the provider or a qualified adviser before acting on them. Full disclaimer.

Methodology

Formula:: Benefit-cost ratio
Content last updated:: September 2026
Scheduled re-verification:: September 2027

Calculation type: Heuristic estimate.

Your entries stay on this device. This calculator runs entirely in your browser — the figures you type are not sent to us or to anyone else. The page itself uses cookies for analytics and advertising, described in the privacy policy.

Formula & methodology

Formula used

Benefit-cost ratio

BCR = total benefits ÷ total costs

Above 1.0 the benefits exceed the costs. This is the undiscounted headline figure.

Net benefit

net benefit = total benefits − total costs

The absolute gain, in currency rather than as a ratio.

Discounted BCR

PV of benefits = Σ (annual benefit ÷ (1 + r)ᵗ) for t = 1..n;  discounted BCR = PV benefits ÷ costs

Costs are treated as incurred up front and benefits as arriving evenly across the timeframe. That asymmetry is what makes the discount rate matter: a project whose benefits arrive slowly scores worse than one whose benefits arrive at once.

Return on investment

ROI % = net benefit ÷ total costs × 100

The gain as a percentage of what was spent.

Variable definitions

Symbol	Meaning	Unit
costs	Total costs. all direct and indirect costs of the project	currency
benefits	Total benefits. all quantifiable benefits over the timeframe	currency
r	Discount rate. the rate used to bring future benefits to present value	%
n	Timeframe. the number of years over which benefits accrue	years

Step-by-step calculation

1. Enter total costs and total benefits
Costs must be greater than zero, since they are the denominator of the ratio.
2. Set the discount rate and timeframe
Together these determine how much the delay in receiving benefits costs you.

Limitations

Assumes costs fall at the start and benefits accrue evenly. A project with staged costs or a benefit ramp needs a full cash-flow model.
Intangible benefits are worth only what you estimate them at. If removing them drops the BCR below 1.0, the case is weak.
Every figure is an assumption about the future; use the sensitivity option before relying on a ratio close to 1.0.

This page is educational. It applies a standard formula to the figures you enter and shows the arithmetic behind the result. It is an estimate, not an offer, a quotation or financial advice: real costs depend on the provider's pricing, fees and underwriting, and on circumstances this calculator does not collect.

Help & FAQs

Frequently Asked Questions

Clear answers to common questions to help you use this calculator confidently.

What is a good benefit-cost ratio?

Tap to view the answer

A BCR above 1.0 means benefits exceed costs. Above 2.0 is excellent. Between 1.0-1.5 is viable but should be sensitivity-tested. Below 1.0 means costs exceed benefits. For multi-year projects, always check the discounted BCR.

How do I include intangible benefits?

Tap to view the answer

Assign conservative dollar estimates to intangibles like brand reputation or customer satisfaction. The calculator has dedicated fields for this. When presenting results, separate tangible from intangible benefits so assumptions are transparent.

What discount rate should I use?

Tap to view the answer

Private sector: 5-10% (your cost of capital). Public sector: 3-7%. The rate significantly impacts multi-year project valuations. Try several rates to test sensitivity.

What's the difference between BCR and ROI?

Tap to view the answer

BCR is a ratio (Benefits ÷ Costs). A BCR of 1.5 means every dollar returns $1.50. ROI is a percentage (Net Benefit ÷ Costs × 100%). Same result, different presentation. BCR is preferred for project evaluation; ROI for business contexts.

What costs should I include?

Tap to view the answer

Direct costs (materials, labor, equipment), indirect costs (overhead, admin), and opportunity costs (what you sacrifice by choosing this project over alternatives). Exclude sunk costs — money already spent that can't be recovered.

Need more help? Contact support or email globalcalqulate@gmail.com

We typically reply within 24–48 hours.

More everyday calculators

All everyday calculators

How to Use This Calculator

Enter Total Costs

Include all direct costs (materials, labor, equipment), indirect costs (overhead, admin), and opportunity costs (what you give up by choosing this project).

Enter Total Benefits

Quantify all expected benefits — revenue gains, cost savings, efficiency improvements, and time savings over the project's lifetime.

Set Discount Rate & Timeframe

Apply a discount rate (typically 5-10%) to convert future cash flows to present-day value. Set the project timeframe in years.

Review Your Verdict

A BCR above 1.0 means benefits exceed costs. The higher the BCR, the stronger the case for the project. Check sensitivity scenarios to stress-test your assumptions.

Understanding Your Results

Benefit-Cost Ratio
Total Benefits ÷ Total Costs. BCR > 1.0: viable. BCR > 2.0: excellent. BCR < 1.0: costs exceed benefits.
Net Benefit
Total Benefits − Total Costs. Positive means value creation; negative means the project costs more than it returns.
Discounted BCR
BCR adjusted for time value of money. Future benefits are discounted to present value using your chosen rate.
ROI
(Net Benefit ÷ Total Costs) × 100%. Standard percentage return metric used alongside BCR for stakeholder communication.

Key Tips

✓
A BCR above 2.0 indicates a strong project — benefits are at least double the costs.
✓
Include opportunity costs: what revenue or benefits do you sacrifice by committing resources to this project instead of alternatives?
✓
Sensitivity analysis shows which assumptions most affect your outcome — vary costs and benefits by ±10-20% to find your break points.
✓
Intangible benefits (brand reputation, employee morale, customer satisfaction) should be monetized conservatively, not optimistically.
✓
Present value discounting is essential for multi-year projects — a benefit received 5 years from now is worth less than the same benefit today.

How Cost-Benefit Analysis Works

What Is Cost-Benefit Analysis?

Cost-benefit analysis (CBA) is a structured method for comparing the total expected costs of a project against its total expected benefits. The goal is to determine whether the project is worth pursuing — and if so, how it compares to alternatives. The core metric is the Benefit-Cost Ratio (BCR): Total Benefits ÷ Total Costs. A ratio above 1.0 means benefits exceed costs. The analysis includes both direct monetary costs/benefits and, optionally, intangible factors like improved brand reputation, reduced risk, or better employee satisfaction, assigned a monetary estimate. CBA is used across government policy evaluation, corporate capital budgeting, and nonprofit program assessment.

Including Intangible Benefits and Costs

Not every benefit shows up on an income statement. Improved customer satisfaction, stronger brand recognition, reduced operational risk, and better employee retention all have real economic value — they're just harder to quantify. The calculator allows you to include intangibles by assigning dollar estimates. The key is conservatism: an optimistic intangible estimate can make a bad project look good. When presenting CBA results to stakeholders, separate tangible from intangible benefits so decision-makers can weigh the assumptions. A rule of thumb: if removing intangibles flips the BCR below 1.0, the project's case is weak.

Discounting — Why Future Money Is Worth Less Today

A dollar received five years from now is worth less than a dollar in your hand today — this is the time value of money. Discounting converts future benefits and costs to their present-day equivalent using a discount rate (typically 5-10% for private sector projects, 3-7% for public sector). The formula: Present Value = Future Value ÷ (1 + r)^n, where r is the discount rate and n is the number of years. Without discounting, a project with benefits spread over 20 years looks much better than it actually is. The calculator's discounted BCR and discounted net benefit incorporate this adjustment automatically.

Sensitivity Analysis and Limitations

Every CBA depends on assumptions about future costs, benefits, and discount rates — and those assumptions can be wrong. Sensitivity analysis tests how the BCR changes when key inputs shift. If a 10% cost increase drops your BCR from 1.50 to 0.95, your project is highly sensitive to cost overruns and may be too risky. Limitations: CBA assumes all benefits and costs can be monetized (some can't, like environmental impact or human life in public policy contexts). It doesn't account for distributional effects (who benefits vs who pays). Use CBA as a decision-support tool, not the sole decision criterion.

Formulas Used by This Calculator

Benefit-Cost Ratio (BCR) = Total Benefits ÷ Total Costs. Net Benefit = Total Benefits − Total Costs. ROI (%) = (Net Benefit ÷ Total Costs) × 100 — mathematically, ROI = (BCR − 1) × 100. Present Value of a future amount = Future Value ÷ (1 + discount rate)^years; the calculator applies this to each year's share of costs and benefits to compute the Discounted BCR and Discounted Net Benefit. Payback Period = the point at which cumulative net benefit (benefit minus cost, spread evenly across the timeframe) first reaches zero, interpolated within the year it crosses.

Common Cost-Benefit Analysis Mistakes

Including sunk costs — money already spent cannot be recovered regardless of the decision, so only forward-looking costs and benefits belong in the analysis. Underestimating true costs — a software project's real cost usually includes implementation, training, and integration, not just the license fee; leaving these out inflates the BCR. Overestimating benefits (optimism bias) — sales or productivity gains promised at the outset are often not realized in full; conservative estimates produce a more credible case. Ignoring opportunity cost — capital committed to one project can't fund alternatives, so the discount rate should reflect what that capital could otherwise earn. Skipping sensitivity analysis — a BCR that only looks acceptable under best-case assumptions is fragile; testing cost and benefit swings of ±10-20% shows how robust the verdict really is.

Limitations of Cost-Benefit Analysis

CBA assumes every relevant cost and benefit can be converted to a dollar figure — some genuinely can't (environmental impact, human wellbeing in public policy) without contested assumptions. It doesn't show who bears the costs versus who receives the benefits (distributional effects). A high BCR also says nothing about strategic fit or risk profile — a marginal project that opens a new market may be worth pursuing despite a weak ratio, and an excellent BCR built on optimistic inputs can still fail in practice. Treat the BCR as one input to a decision, not the whole decision.

Formula & methodology

Formula used

Benefit-cost ratio

BCR = total benefits ÷ total costs

Above 1.0 the benefits exceed the costs. This is the undiscounted headline figure.

Net benefit

net benefit = total benefits − total costs

The absolute gain, in currency rather than as a ratio.

Discounted BCR

PV of benefits = Σ (annual benefit ÷ (1 + r)ᵗ) for t = 1..n;  discounted BCR = PV benefits ÷ costs

Return on investment

ROI % = net benefit ÷ total costs × 100

The gain as a percentage of what was spent.

Variable definitions

Symbol	Meaning	Unit
costs	Total costs. all direct and indirect costs of the project	currency
benefits	Total benefits. all quantifiable benefits over the timeframe	currency
r	Discount rate. the rate used to bring future benefits to present value	%
n	Timeframe. the number of years over which benefits accrue	years

Step-by-step calculation

1. Enter total costs and total benefits
Costs must be greater than zero, since they are the denominator of the ratio.
2. Set the discount rate and timeframe
Together these determine how much the delay in receiving benefits costs you.

Limitations

Assumes costs fall at the start and benefits accrue evenly. A project with staged costs or a benefit ramp needs a full cash-flow model.
Intangible benefits are worth only what you estimate them at. If removing them drops the BCR below 1.0, the case is weak.
Every figure is an assumption about the future; use the sensitivity option before relying on a ratio close to 1.0.

Calculator inputs

Project Financials

Your results

Methodology

Formula & methodology

Formula used

Benefit-cost ratio

Net benefit

Discounted BCR

Return on investment

Variable definitions

Step-by-step calculation

Limitations

What is a good benefit-cost ratio?

How do I include intangible benefits?

What discount rate should I use?

What's the difference between BCR and ROI?

What costs should I include?

Related calculators

More everyday calculators

Calculator inputs

Project Financials

Your results

Methodology

How to Use This Calculator

Example: Software Upgrade Project

Understanding Your Results

Key Tips

How Cost-Benefit Analysis Works

What Is Cost-Benefit Analysis?

Including Intangible Benefits and Costs

Discounting — Why Future Money Is Worth Less Today

Sensitivity Analysis and Limitations

Formulas Used by This Calculator

Common Cost-Benefit Analysis Mistakes

Limitations of Cost-Benefit Analysis

Formula & methodology

Formula used

Benefit-cost ratio

Net benefit

Discounted BCR

Return on investment

Variable definitions

Step-by-step calculation

Limitations

How to Use This Calculator

Example: Software Upgrade Project

Understanding Your Results

Key Tips

How Cost-Benefit Analysis Works

What Is Cost-Benefit Analysis?

Including Intangible Benefits and Costs

Discounting — Why Future Money Is Worth Less Today

Sensitivity Analysis and Limitations

Formulas Used by This Calculator

Common Cost-Benefit Analysis Mistakes

Limitations of Cost-Benefit Analysis