Crown vs Filling Calculator
Compare the long-term cost of a dental crown vs a filling over a given number of years, accounting for replacement frequency.
About this calculator
A crown almost always costs more up front than a filling, but that single comparison misses the fact that fillings -- especially composite fillings in load-bearing back teeth -- typically need replacing more often, commonly every 3 to 7 years, while a well-placed crown often lasts 10 to 20 years depending on the material and how it's cared for. This calculator projects both options out over a chosen comparison horizon by dividing that horizon by each option's expected lifespan and rounding up to a whole number of replacements, since a restoration that wears out partway through year 18 still needs a full new restoration, not a fractional one. Multiplying replacements by per-unit cost gives each option's total cost over the horizon, and dividing by the number of years gives an annualized cost that makes the two options directly comparable even when their replacement cycles don't line up.
A short comparison horizon can favor whichever option has the lower up-front cost even if it needs replacing sooner, while a long horizon increasingly favors the option with the lower total replacement burden -- which is why the Years to Compare setting can flip which option looks cheaper. This is a financial comparison only; it does not weigh the structural protection a crown provides to a heavily-restored or cracked tooth, which is a clinical judgment your dentist is better placed to make.
Medical Disclaimer
This calculator is for informational and educational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider before making decisions about your health. Never disregard professional medical advice or delay seeking it because of results from this tool.
Crown Total Cost
$2,400.00
Filling Total Cost
$1,000.00
Difference
$1,400.00
Inputs
Comparison
Crown Cost Per Year
$120.00
Filling Cost Per Year
$50.00
Crown Replacements
2
Filling Replacements
4
How to Use This Calculator
- Enter Crown Cost ($) — the fee your dentist quoted for a single crown.
- Set Crown Lifespan (years) — typically 10–20 years depending on material.
- Enter Filling Cost ($) and Filling Lifespan (years) — usually 3–7 years for composite.
- Set Years to Compare to your planning horizon (e.g., 20 years) to see long-term projections.
- Review Crown Total Cost vs Filling Total Cost and the Difference to identify the more economical option over time.
- Use this as a financial guide alongside your dentist's clinical recommendation — crowns also provide structural protection.
How the result changes with Crown Cost
| Crown Cost | Crown Total Cost | Filling Total Cost | Difference |
|---|---|---|---|
| $600.00 | $1,200.00 | $1,000.00 | $200.00 |
| $900.00 | $1,800.00 | $1,000.00 | $800.00 |
| $1,800.00 | $3,600.00 | $1,000.00 | $2,600.00 |
| $3,000.00 | $6,000.00 | $1,000.00 | $5,000.00 |
What each input means
- Crown Cost
- Cost of a single dental crown.
- Crown Lifespan
- Expected lifespan of a dental crown in years (typically 10–20 years).
- Filling Cost
- Cost of a single dental filling.
- Filling Lifespan
- Expected lifespan of a dental filling in years (typically 3–7 years).
- Years to Compare
- Number of years over which to compare total costs.
How this is calculated
Worked example, using the default values
- Identify Input Parameters4 parametersCrown Cost = 1200, Crown Lifespan = 15, Filling Cost = 250, Filling Lifespan = 5 = 5 input(s) provided
- Calculate Crown Total CostCrown Total Cost2400 = $2,400
- Calculate Filling Total CostFilling Total Cost1000 = $1,000
- Calculate DifferenceDifference1400 = $1,400
- Calculate Crown Cost Per YearCrown Cost Per Year120 = $120
- Calculate Filling Cost Per YearFilling Cost Per Year50 = $50
Engine last updated . Checked against 1 independently-derived test — how we verify calculators. Built by Paul Gunder, a software engineer, not a licensed financial, medical, or legal professional.
Frequently Asked Questions
Why can a filling cost more than a crown over a long enough time horizon?
Because fillings typically need replacing more often than crowns. Over a 20-year horizon, a filling with a 5-year lifespan needs 4 replacements while a crown with a 15-year lifespan needs only 2, so even though the crown's per-unit price is higher, the repeated replacement cost of the filling can add up to a similar or larger total, especially as the comparison horizon lengthens.
Does changing the years to compare change which option looks cheaper?
It can. A short horizon tends to favor whichever option has the lower up-front cost, since neither restoration has needed replacing yet. A longer horizon gives the replacement-frequency difference more time to compound, which is why this calculator lets you adjust the comparison period rather than fixing it -- the "cheaper" option genuinely depends on how many years you're planning across.
How does this calculator handle a restoration that wears out partway through the horizon?
It rounds up to a whole number of replacements rather than a fraction, since a restoration failing in year 18 of a 20-year horizon still requires a complete new crown or filling -- there's no such thing as an 90%-replacement. That rounding can make a lifespan just barely inside a horizon look less efficient than one that divides evenly into it.
Should I choose based on cost alone?
No -- this calculator is a financial comparison only and does not weigh structural factors like how much sound tooth structure remains, whether the tooth is cracked, or how much biting force it carries, all of which affect whether a filling can realistically hold up long-term. Those clinical judgments belong to your dentist, who can examine the tooth directly.
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