Value of a Statistical Life (VSL) Calculator

An economic tool to understand the calculation for human life used by the US government in cost-benefit analysis.

Calculate the VSL

VSL Estimates by U.S. Government Agency

Different U.S. government agencies use slightly different values for the VSL in their cost-benefit analyses. These values are updated periodically to account for inflation and income growth. The table below shows representative estimates used by major agencies.

Estimated VSL by Agency (values adjusted for illustration)

Agency	Estimated VSL (in millions)
Environmental Protection Agency (EPA)	$11.4
Department of Transportation (DOT)	$12.5
Department of Health and Human Services (HHS)	$13.6
Food and Drug Administration (FDA)	$12.9

What is the Value of a Statistical Life (VSL)?

The Value of a Statistical Life (VSL) is a monetary figure used by government agencies to quantify the benefit of avoiding a fatality. It is not the value of a specific person’s life, but rather an estimate of how much a society is willing to spend to reduce mortality risk. For example, if 100,000 people are each willing to pay $100 for a safety measure that reduces their individual risk of dying by 1 in 100,000, the VSL is $10 million ($100 * 100,000). This metric is a cornerstone of cost-benefit analysis for regulations concerning public health, safety, and the environment.

This calculation for human life used by the US government helps policymakers decide whether a regulation’s costs are justified by its benefits in terms of lives saved. Without such a metric, it would be difficult to compare the economic impact of a regulation with its life-saving potential. For a deeper look at policy, check out our guide on environmental regulations.

The VSL Formula and Explanation

The fundamental formula for the VSL is straightforward:

VSL = Willingness to Pay (WTP) / Risk Reduction

This formula is the core of our Value of a Statistical Life calculator. The inputs are based on how much individuals are collectively willing to pay for a small reduction in their mortality risk.

Formula Variables

Variable	Meaning	Unit	Typical Range
Willingness to Pay (WTP)	The amount an individual will pay for a marginal safety improvement.	Currency (e.g., $)	$10 – $1,000
Risk Reduction	The statistical reduction in the probability of death (e.g., 1 in 100,000).	Unitless probability	1 in 10,000 to 1 in 1,000,000
VSL	The resulting Value of a Statistical Life.	Currency (e.g., $)	$9 million – $14 million (U.S. Agencies)

Practical Examples

Example 1: Road Safety Improvement

A town is considering adding a new guardrail to a dangerous curve. The project will cost $500,000 and is expected to reduce the mortality risk for 50,000 drivers by 1 in 100,000 each year. Each driver is willing to contribute $10 towards this improvement.

• Inputs: WTP = $10, Risk Reduction Denominator = 100,000
• Calculation: VSL = $10 / (1 / 100,000) = $1,000,000
• Result: In this scenario, the VSL is $1 million. Since the benefit ($1M) exceeds the cost ($500k), the project is economically justified. For more on this, see our risk assessment calculator.

Example 2: Environmental Regulation

The EPA proposes a new rule to reduce air pollution from a factory. The regulation is estimated to reduce the mortality risk for a population of 1 million people by 1 in 500,000. Studies show that individuals in this community are willing to pay an average of $25 each in higher product costs for this improved air quality.

• Inputs: WTP = $25, Risk Reduction Denominator = 500,000
• Calculation: VSL = $25 / (1 / 500,000) = $12,500,000
• Result: The calculated VSL is $12.5 million, which aligns with the values used by the Department of Transportation (DOT).

How to Use This VSL Calculator

1. Enter Willingness to Pay: Input the dollar amount an individual would pay for a safety improvement. This is often determined through surveys and economic studies.
2. Enter Risk Reduction: Input the denominator of the risk reduction. For example, for a 1 in 250,000 risk, enter “250000”. This represents how many people must be affected for one statistical death to be avoided.
3. Review the Result: The calculator automatically provides the VSL. This figure represents the total value assigned to preventing one statistical fatality based on your inputs.
4. Compare with Agency Values: Use the table and chart on this page to see how your calculated VSL compares to official estimates from various US government agencies.

Key Factors That Affect VSL

• Income Levels: Generally, as real income in a society grows, the VSL also increases, as people are willing and able to pay more for safety.
• Age of Population: While controversial and officially not used by the EPA for differentiation, some economic models suggest the VSL may vary with age, peaking in middle age.
• Type of Risk: People may be willing to pay more to avoid certain types of risks (e.g., cancer from pollution) compared to others (e.g., car accidents).
• Baseline Risk Level: The VSL can be influenced by the initial level of risk. People facing higher baseline risks may value a reduction more highly.
• Economic Conditions: Inflation and overall economic health directly impact the VSL, requiring periodic updates to the value. Explore our economic valuation methods page for more context.
• Study Methodology: The VSL can vary based on whether it was derived from “revealed preference” studies (observing real-world choices) or “stated preference” studies (surveys about hypothetical scenarios).

Frequently Asked Questions

1. Does the government really put a price on my life?

No. The VSL is not a value for a specific, identifiable person’s life. It’s a tool for valuing statistical risk across a population to make informed policy decisions.

2. Why do different agencies have different VSL numbers?

Agencies may use different underlying studies, update their figures at different times, or have specific mandates that influence their chosen value.

3. What is the difference between VSL and a court settlement for wrongful death?

A court settlement is backward-looking, compensating a family for the loss of a specific person based on factors like lost income and suffering. The VSL is forward-looking and used to evaluate the benefits of future regulations for a large, anonymous population.

4. How is the “willingness to pay” determined?

It’s estimated through two main methods: revealed preference (e.g., analyzing how much extra pay workers demand for risky jobs) and stated preference (e.g., surveying people on how much they would pay for safer products). Learn about our approach at our methodology page.

5. Is the VSL the same in every country?

No, the VSL varies significantly between countries, often correlating with the country’s average income and economic development.

6. Does the VSL account for non-fatal injuries?

No, the VSL specifically measures the value of preventing a statistical fatality. Separate metrics, like the Value of a Statistical Injury (VSI), are used for non-fatal outcomes.

7. Why has the VSL increased over time?

The primary drivers are inflation and growth in real income. As people’s purchasing power increases, so does their collective willingness to pay for safety.

8. Is this the only way to perform a calculation for human life used by the US government?

The VSL is the primary method, having largely replaced the older “human capital” approach, which only considered a person’s future earnings. The VSL is considered more comprehensive because it includes what people are willing to pay for safety itself, beyond just income. For related topics see our guide on public safety metrics.