How Are Damages Calculated in Personal Injury Cases?

When someone is injured through another party’s negligence, the law allows them to seek financial compensation for everything they have lost, including costs that are easy to add up and others that are harder to put a number on. Understanding how to calculate damages in personal injury cases means accounting for both categories: the economic losses like medical bills, lost wages, and property damage, and the non-economic losses like pain, emotional suffering, and the ways an injury changes daily life. Together, these form the basis of what a personal injury claim is worth.

Our personal injury lawyers in Scottsdale at Gage Mathers work through this process on every case we take, and we know how to increase personal injury settlements by building the strongest possible evidence for each category of damages. The sections below explain the factors that shape a damages calculation and how the numbers are actually reached.

Influencing Factors of Damage Calculations

Numerous factors, ranging from physical and emotional trauma to economic losses and other hardships, can influence the calculation of damages in personal injury cases.

The severity and permanence of the injuries sustained are crucial to determining how much compensation to seek. More serious or long-term injuries typically result in higher damages. 

To support your claims, gather documentation and evidence of your injuries and damages. In addition, the victim’s age, occupation, and lifestyle may play a role in determining damage amounts, especially when figuring out how it could impact lives long-term.

How the Numbers Are Actually Calculated

Understanding how to calculate damages in personal injury cases starts with a straightforward distinction. Economic damages (medical bills, future treatment costs, lost income, reduced earning capacity, and property damage) are calculated by adding up documented expenses and projecting forward where ongoing costs apply. These figures are grounded in receipts, pay stubs, medical records, and expert testimony about future care needs. The math is relatively direct.

Non-economic damages, including pain and suffering, emotional distress, and loss of enjoyment of life, require a different approach because there is no invoice to reference. Two methods are commonly used.

The first is the multiplier method. An attorney calculates the total economic damages and multiplies that figure by a number, typically between 1.5 and 5, based on the severity and permanence of the injuries. 

A minor injury with a short recovery period might carry a multiplier of 1.5 or 2. A serious injury causing long-term disability or ongoing pain could justify a multiplier of 4 or 5. The reasoning is that more severe injuries produce higher medical costs and cause proportionally greater suffering, so the non-economic compensation should reflect that relationship.

The second is the per diem method. This approach assigns a daily dollar value to the victim’s suffering, often tied to their daily wage or another reasonable reference point, and multiplies it by the number of days the person experienced pain or limitation because of the injury. 

If someone endured significant discomfort for 200 days and a daily rate of $150 is established, the pain and suffering calculation would reach $30,000 for that period alone. This method can be particularly effective when presenting a case to a jury, because it translates abstract suffering into concrete, day-by-day terms.

In practice, attorneys and insurers often begin with one method and cross-check using the other. Arizona imposes no cap on non-economic damages in personal injury cases, which means there is genuine room to argue for a higher figure when the facts support it. Having an attorney who knows how to build and present that argument makes a direct difference in what the final number looks like!

How State Laws Play a Role

Your personal injury lawyer must be well-versed in the state laws that govern personal injury. At Gage Mathers, we can confidently say we know Arizona law inside and out. 

These state-specific laws and regulations dictate how personal injury claims must be handled for consistency in how decisions are made. They can also make it harder to determine the damage amount and reach a resolution.

Each state has laws and rules that govern different cases and claims. For example, statutes of limitation determine how long after an accident a lawsuit can be filed and vary from state to state. Some states also impose caps on damages such as emotional trauma, pain and suffering, and punitive damages. This can limit how much you can receive. 

The general determination of fault and liability also varies. Some states follow comparative negligence rules, which means you could be found partially responsible for the incident and receive less compensation. 

Why Turn to Gage Mathers?

At Gage Mathers Law Group, we have a proven track record of successfully representing personal injury victims. With our legal guidance and dedicated support, our expert attorneys can navigate the nuances and complexities of calculating damages for your case.

Our clients come first.  We prioritize clear communication and aggressive advocacy. With each case, we thoroughly investigate each claim to seek justice and ensure our clients receive the amount they deserve for all they’ve endured.

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About the Author

Joseph D'Aguanno

Guided by the belief that being a highly skilled specialist in a narrow field is better than being ordinary in everything, Joseph “JD” D’Aguanno leads Arizona’s best personal injury law firm in Phoenix, AZ. Having extensive cross-training in pre-litigation negotiations and trial lawyer skills, with decades of experience, JD strives to provide clients with the most valuable legal services a personal injury lawyer can provide. Under his direction, Gage Mathers Law Group is an award-winning personal injury law firm providing aggressive representation to victims of a car accident, medical malpractice, dog bite, motorcycle accident, and other injurious events. Gage Mathers is trusted by thousands of lawyers and clients throughout the country because of their reputation for getting clients the maximum compensation they deserve.

Years of experience: Over 24 years
Bar number: 020421
Location: Phoenix, AZ
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