Repair vs Replace Vehicle Cost Calculator
Decide whether to repair your current car or replace it. Compare repair costs, remaining value, and replacement costs.
Quick Take
This calculator gives you real-time estimates based on standard financial formulas. Modify any input and results update instantly — no calculate button needed.
Primary Result
Repair as % of Car Value
What This Calculator Does
Decide whether to repair your current car or replace it. Compare repair costs, remaining value, and replacement costs.
How the Calculation Works
Who Should Use This Tool
This calculator is designed for anyone looking to understand the financial implications of used car decisions. Whether you're a first-time buyer, comparing options, or planning for the future, these estimates help you make informed choices.
Important Considerations
Remember that actual terms, rates, and costs will vary by lender, your credit score, and current market conditions. These calculators provide educational estimates only and do not constitute professional financial advice. Always compare multiple offers and consult a financial professional before making decisions.
How the math works
The comparison is between the cost of the repair plus the vehicle's expected additional depreciation, and the cost of replacement net of the current vehicle's resale value. A repair is usually worth doing when the annualised cost stays below the cost of replacing the vehicle over the same period.
How to use this calculator
- Get a written repair estimate, not a verbal range.
- Find the vehicle's current market value, since a repair costing more than a large share of that value rarely pays.
- Estimate how many more years the vehicle is likely to serve after the repair.
- Annualise the repair cost across those years and compare it with a replacement's annual cost.
- Add ongoing costs either way: insurance, fuel and registration can differ substantially between the two.
- Include safety and reliability, because a repair that restores safe operation is not equivalent to one that only postpones replacement.
Sources & authoritative references
The definitions, formulas, and benchmarks behind this tool are drawn from the public, primary sources listed below. We do not cite figures we cannot verify.
- Insurance Research — Insurance Information Institute
- Consumer Advice — U.S. Federal Trade Commission
Frequently asked questions
When should I repair vs replace my car?
What is the 50% rule for car repairs?
How long should I keep repairing an old car?
What major repairs signal time to replace?
How do I calculate the true cost of replacing?
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Related Guides
The Repair-or-Replace Line: When to Stop Fixing the Old Car
There is a point where fixing the old car costs more than it is worth. The trick is setting that line before the tow truck shows up, not after.
Extended Warranties: When the Contract Pays and When It Does
An extended warranty is a bet you make against your own car breaking. Most lose, but a few buyers come out ahead. The trick is knowing which side you are on before you sign.