The short version: (your medical bills + lost wages) × a 1.5–5× severity multiplier, plus the repair bill — and in a rear-end crash, fault is presumed to be the other driver's. Run your numbers below; every line of the math prints on screen.
Based on the multiplier method used by insurers and attorneys. This is an educational estimate, not legal advice — every claim is different.
Every state's traffic law requires drivers to leave enough room to stop. That makes a rear-end collision the rare crash where liability is presumed from the geometry alone — which is why these claims settle faster and why the insurer's energy goes into minimizing your injuries instead of disputing fault. Your job is therefore documentation: get examined even if you feel fine (whiplash routinely surfaces a day or two later), keep every bill, and log every missed shift.
Soft-tissue rear-end claims cluster at the 1.5–2× end of the multiplier band; verified disc injuries, radiating pain, or anything needing injections or surgery move the band to 3× and beyond. Treatment consistency matters more than treatment intensity — a modest injury treated on schedule outperforms a serious one with gaps. And your state's shared-fault rule still applies: if the insurer pins any percentage on you (the classic argument is a sudden stop), the calculator shows exactly what that percentage costs in your state.
Expect the first offer to hover near your medical bills — implying a multiplier close to 1×, which no adjuster's own manual supports. Grade it with offer check, respond with the implied-multiplier math (here's how to set your demand and walk-away numbers), and put a deadline on your counter. If they won't move into the band and your injuries are real, that's the moment a contingency attorney earns the fee — see what changes in the take-home calculator before deciding.
It depends on your damages, not the crash type: (medical bills + lost wages) × a severity multiplier (1.5–2× for soft tissue, up to 5× for severe injuries) + vehicle damage. A typical soft-tissue rear-end claim with $6,000 in medical bills and $1,500 in lost wages lands in roughly the $11,000–$16,500 range before fault adjustments. Run your own numbers in the calculator on this page — the arithmetic is printed under the result.
Almost always, but not automatically. Every state presumes the rear driver was following too closely — that presumption is why rear-end claims settle more cleanly than other crashes. The exceptions insurers reach for: sudden reversing, brake-checking, cut-ins, and non-functioning brake lights. Unless one of those genuinely applies, expect liability to be conceded and the fight to be about your injuries, not fault.
First offers on rear-end claims are routinely a fraction of the multiplier-method range, often barely covering the bills. Switch our calculator to 'Check an offer' — it grades their number against the honest band for your damages and shows the implied multiplier, which is exactly the argument to make in negotiation.
No — delayed-onset whiplash and soft-tissue symptoms are the norm, not the exception. What matters is getting examined as soon as symptoms appear and following through on treatment. The gap insurers punish is between symptoms and treatment, not between crash and symptoms.
For a minor claim with clear liability and full recovery, self-negotiating with the calculated range as your anchor can net more than paying a third in fees. Once there are real injuries, lasting symptoms, or a disputed offer, a contingency attorney typically recovers several times their fee. Run the take-home calculator both ways — it makes the decision arithmetic, not guesswork.