Harlan Harlan
Attorney guide · 2026 edition

Personal Injury Settlement Calculator Method

Many lawyers and insurers use quick calculation methods as a starting point for negotiation. This guide explains a conservative, attorney-friendly way to estimate a settlement value range using specials, general damages, and multiplier ranges, plus the guardrails that prevent false precision.

Run a Harlan evaluation Copy the valuation checklist

1) The core idea: specials + general damages, then sanity-check

Damages typically start with economic losses (specials). General damages (pain and suffering) are then negotiated with reference to injury severity, treatment intensity, and life impact.

Estimated settlement starting point = (Medical specials × multiplier) + other specials

The multiplier method is often framed as a range, not a single number. A typical illustrative band is 1.5 to 5, and in extreme cases it can exceed 5.

Guardrail: treat this as a negotiation starting point, not a prediction. Juries, policy limits, comparative fault, and venue dynamics can dominate the final outcome.

2) Attorney checklist: inputs that drive the range

Input Why it matters What to record
Medical specials Anchor for both negotiation posture and general damages estimation. Total billed and total paid, plus future care estimate if applicable.
Other specials Often overlooked and can meaningfully move the floor. Lost wages, loss of earning capacity, mileage, property damage, out-of-pocket.
Injury severity Drives multiplier selection and jury perception. Diagnosis, imaging, surgeries, permanency, scarring, disability ratings.
Treatment timeline Gaps can reduce perceived seriousness and affect causation arguments. First treatment date, last treatment date, gaps greater than 30 days.
Liability and comparative fault Can compress the entire range and change demand strategy. Admissions, citations, witness statements, reconstruction, plaintiff conduct.
Insurance limits and collectability Practical ceiling for many pre-suit settlements. Known limits, umbrella coverage, employer policies, assets.
Venue and jury patterns Two similar injuries can value very differently by county and judge. County, judge, comparable verdicts and settlements by injury type.

3) Picking a multiplier: the defensible approach

The multiplier should be treated as a severity and credibility dial. In practice, it is influenced by objective signals and story strength.

  • Low band (around 1.5 to 2): soft tissue, fast recovery, minimal treatment.
  • Mid band (around 2.5 to 4): objective findings, injections, meaningful disruption.
  • High band (around 4 to 5+): surgery, permanency, catastrophic impact, clear liability.
Use ranges. If your valuation depends on one exact multiplier, you are likely missing a key constraint (limits, comp fault, venue) or a key uncertainty (causation, future care).

5) A practical example (numbers kept simple)

Example scenario: $35,000 in medical specials, $10,000 in other specials (lost wages and expenses). If the injuries are moderate with objective findings and consistent treatment, you might sanity-check a general damages band with a 2.5 to 4 multiplier.

Low estimate = ($35,000 × 2.5) + $10,000 = $97,500 High estimate = ($35,000 × 4.0) + $10,000 = $150,000
This is illustrative only. Real valuation depends on venue, liability, comparative fault, treatment record strength, future care support, and limits.

Sources (public)