Most people use a calculator because it seems to “know” what damages might include. Typically, those tools use inputs like:
- medical costs and treatment duration
- severity and recovery timeline
- lost income and future care needs
- non-economic harm (pain, limitations, emotional impact)
In real Renton cases, two people can enter the same “severity” numbers yet end up with very different outcomes because the proof differs. The biggest drivers are usually:
- What the chart shows (and what it doesn’t)
- Whether experts can support causation—i.e., that the negligence caused the specific harm
- Whether damages are documented in a way insurers can’t easily dismiss
So think of an estimate as a starting conversation, not a destination.


