Many online tools ask you to plug in a few details and spit out a range. The problem is that TBI value in real life depends less on a generic formula and more on proof—especially proof of:
- what happened (the incident facts),
- how the injury was documented, and
- how your daily life and work ability changed.
In California, insurers often challenge brain injury claims by focusing on gaps: delayed diagnosis, inconsistent symptom reporting, or missing follow-up care. If you rely on a calculator alone, you may not realize how much those proof issues can swing settlement value.
A lawyer can still use calculator-style estimates as a starting point, but the strongest cases are built on medical records and functional documentation—things a calculator can’t see.


