Restoration Budget Calculator
Total restoration cost from condition class and scope.
About this calculator
This calculator estimates a total restoration budget from the GAP between Current condition (2-6) and Target condition (1-3) -- the collector-car hobby's shorthand condition classes, where a lower number means better condition (1 is show-quality, 6 is a parts car). That gap sets a severity multiplier applied to a set of baseline labor-hour estimates for each restoration area (engine, transmission, bodywork, paint, interior, chrome, electrical, suspension), floored so even a small gap still assumes some real work rather than dropping to near-zero. Vehicle complexity applies a second multiplier on top -- simple domestic vehicles scale down, exotic or rare vehicles scale up, reflecting both slower labor (specialized knowledge) and pricier parts on hard-to-source vehicles.
Estimated parts cost multiplies through Shop labor rate ($/hr) and Vehicle complexity, but Total labor hours itself is completely UNAFFECTED by Shop labor rate ($/hr) or Contingency (%) -- those two inputs only change the DOLLAR figures built on top of the hours, not how much labor the restoration is estimated to need. Contingency reserve applies Contingency (%) as a flat percentage on top of the combined labor-and-parts subtotal, a standard budgeting buffer for the rust, damage, and scope creep that only becomes visible once a restoration is underway -- project cars in unknown condition warrant a contingency toward the higher end of the 15-50% range this calculator accepts.
Inputs
Results
Total restoration estimate
$97,308.00
≈ 9 years of state college
How to Use This Calculator
- Select Current condition (2–6) and Target condition (1–3) — the gap between them sets how much work is estimated.
- Enter Shop labor rate ($/hr) and select Vehicle complexity (Simple, Standard, or Exotic/rare).
- Set Contingency (%) as a budget buffer for hidden rust, unanticipated repairs, and scope creep.
- Review estimated restoration budget range for labor and parts.
- Get multiple shop quotes — restoration costs vary significantly by marque and local labor rates.
How the result changes with Shop labor rate ($/hr)
| Shop labor rate ($/hr) | Total restoration estimate |
|---|---|
| $43.00 | $49,226.00 |
| $64.00 | $73,267.00 |
| $128.00 | $146,534.00 |
| $213.00 | $243,842.00 |
What each input means
- Current condition (2-6)
- Starting condition per Hagerty scale. Condition 1 cars don't need restoration.
- Target condition (1-3)
- Condition 1 (concours) requires far more labor in fitment, paint correction, and detailing than condition 2.
- Shop labor rate ($/hr)
- Typical rates: $65-90 general, $90-130 marque specialist, $130-200+ concours-level shop.
- Vehicle complexity
- Exotic and rare cars have more expensive parts and require specialized knowledge.
- Contingency (%)
- Budget buffer for hidden rust, unanticipated repairs, and scope creep. 15-25% is typical; 30-50% for unknown-condition cars.
What each result means
- Total restoration estimate
- Complete estimated cost including labor, parts, and contingency.
- Total labor cost
- Shop labor across all restoration areas.
- Estimated parts cost
- Parts, materials, and consumables (typically 60-100% of labor for a full restoration).
- Contingency reserve
- Budget buffer for unexpected discoveries.
- Engine & drivetrain
- Engine rebuild, transmission, and related drivetrain work.
- Body & paint
- Rust repair, metalwork, bodywork, primer, paint, and color sanding.
- Interior & trim
- Upholstery, carpet, dash, trim, and interior chrome.
- Total labor hours
- Estimated shop hours across all disciplines.
- Estimated duration (months)
- Calendar time at one full-time technician. Multiple techs can shorten this.
How this is calculated
Worked example, using the default values
- Identify Input Parameters5 parametersCurrent condition (2-6) = 4, Target condition (1-3) = 2, Shop labor rate ($/hr) = 85, Vehicle complexity = 1, Contingency (%) = 20 = 5 input(s) provided
- Calculate Total restoration estimateTotal restoration estimate = subtotal + contingency97308 = $97,308
- Calculate Total labor costTotal labor cost = totalHours * laborRate45050 = $45,050
- Calculate Estimated parts costEstimated parts cost = totalLaborCost * partsMultiplier36040 = $36,040
Engine last updated . Checked against 2 independently-derived tests — how we verify calculators. Built by Paul Gunder, a software engineer, not a licensed financial, medical, or legal professional.
Frequently Asked Questions
Why does Total labor hours stay the same if I only change Shop labor rate ($/hr)?
Total labor hours is set entirely by how much WORK the restoration needs -- the gap between Current condition (2-6) and Target condition (1-3), scaled by Vehicle complexity -- not by what that labor costs per hour. Shop labor rate ($/hr) only changes Total labor cost and everything built from it (Estimated parts cost, Total restoration estimate); the hours themselves reflect the SCOPE of work, which doesn't depend on price.
Why does a bigger condition gap not always mean a proportionally bigger budget?
The severity multiplier is floored at a minimum value, so even a modest gap between Current condition (2-6) and Target condition (1-3) -- say, going from Good to Excellent -- still assumes some baseline real work across every restoration area, rather than scaling down toward zero for light jobs. Above that floor, though, a bigger gap does scale the estimate up roughly in proportion to how much further the vehicle has to travel.
How much does Vehicle complexity change the estimate between a simple domestic car and an exotic?
Vehicle complexity applies a multiplier on top of the severity-based labor hours: roughly 0.75x for a simple, bolt-together domestic car, 1.0x for a standard import or muscle car, and 1.6x for an exotic or rare vehicle with limited parts supply -- meaning an otherwise identical restoration scope can cost more than double moving from Simple to Exotic/rare, reflecting both slower specialized labor and pricier, harder-to-source parts.
Why does this calculator recommend a higher Contingency (%) for project cars in unknown condition?
Contingency reserve exists specifically to cover discoveries that only become visible once bodywork or disassembly begins -- hidden rust, prior poor repairs, or damage a pre-purchase inspection couldn't catch. A car in worse or less-known starting condition (closer to Current condition (2-6) = 5 or 6) carries more risk of these surprises, which is why 30-50% contingency is typical there versus 15-25% for a car whose condition and history are already well understood.
Does Estimated parts cost track Total labor cost exactly, or can they diverge?
They move together but aren't identical -- Estimated parts cost is Total labor cost multiplied by a parts ratio that itself depends on Vehicle complexity (exotic vehicles carry a higher parts-to-labor ratio, since specialty parts cost more relative to the labor to install them). So raising Shop labor rate ($/hr) scales both cost figures by the same amount, but changing Vehicle complexity shifts the balance between labor and parts, not just the total.
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