Most total loss calculators stop at "yes, it's totaled." This one carries the number all the way through: what the settlement actually pays after your deductible, whether it clears your loan, and what retaining the salvage would really cost you.
Your insurer compares the repair estimate against the car's actual cash value, and states enforce that comparison in one of two ways. Most set a fixed percentage — if repairs reach, say, 75% of ACV, the car must be declared a total loss. A minority use the Total Loss Formula instead, where the car is totaled when repair cost plus salvage value equals or exceeds ACV.
The difference matters more than people expect. On an $18,000 car with $13,000 of damage and $4,500 of salvage value, repairs come to 72% of ACV. In a 60% or 70% state that car is totaled. In a 75%, 80%, or 100% state it gets repaired. Under the Total Loss Formula the sum is $17,500 against an $18,000 ACV, so it also gets repaired. Same damage, same car, opposite outcome.
Modern bumpers house radar sensors, cameras, and parking assist modules, and a low-speed impact that once meant a $900 bumper cover can now trigger several thousand dollars in sensor replacement and recalibration. The repair estimate climbs toward the threshold much faster than the visible damage suggests.
Everything downstream depends on ACV, and it isn't the adjuster's personal opinion — insurers rely on third-party valuation platforms that pull comparable local sales from the prior month or two. That makes ACV disputable with evidence. If your car had new tires, recent major maintenance, a trim level or option package the valuation missed, or unusually low mileage for its age, those are concrete arguments. Pull three or four listings for genuinely comparable vehicles in your area and present them in writing.
Most policies also include an appraisal clause, which lets you and the insurer each hire an appraiser and, if they disagree, bring in a neutral umpire. It's a formal path that exists precisely for valuation disputes, and it's underused.
The settlement pays the car's value, not your loan balance, and those two numbers drift apart fast on long loans with small down payments. If you owe $21,000 on a car worth $18,000 and your deductible is $500, the insurer pays $17,500 and you still owe $3,500 on a car you no longer have. GAP coverage exists to close exactly that hole; without it, the balance stays yours.
If you're not currently in a claim and just want to know whether you're exposed, the GAP insurance calculator shows how long your loan stays underwater.