Carpet Value Calculator
A carpet you already own is not worth what you paid for it, and it is not worth what a new one costs either. This carpet value calculator estimates the current worth of carpet already on your floor from its room size, price, quality grade, age and condition, plus what replacing it would cost now. It is a planning estimate for insurance talks, landlord disputes and replace-or-keep decisions, not an appraisal and not an insurance valuation.
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Estimates only. The 17% yearly rate, the quality and condition multipliers, the $1.25 padding figure and the 15% replacement uplift are this tool’s planning assumptions, not market prices or an insurer’s schedule. The result never falls below 5% of original installed cost.
Quick Answer
A 12 by 15 foot room (180 sq ft) with better-grade carpet at $3.50 per sq ft, 4 years old and in good condition, is worth about $299.52 today against an original installed cost of $1,440.00. Replacing it now would run roughly $1,615.50. That is only 20.8% of the original cost left, so the verdict reads low residual value. The calculator above is pre-filled with this example, so one click reproduces every figure.
Key takeaways
- Current value = original installed cost, reduced 17% per year of age up to an 85% cap, then multiplied by a condition factor, with a 5% floor.
- Age stops mattering after 5 years in this model. Past that point only condition moves the number, which is why a pampered old carpet can out-value a trashed younger one.
- Quality multiplies the starting price before anything else: luxury at 3.0 starts from three times the basic figure for the same room and price.
- Replacement cost inflates material plus padding by 15% and adds installation at its original rate. It is not 15% above the whole original bill.
- Quick Answer
- How to use the carpet value calculator
- How carpet value is actually calculated
- Worked example: 12 by 15 room, better grade, 4 years old
- What carpet is worth year by year
- What competing carpet calculators miss
- When this number actually matters
- Frequently asked questions
- Add This Calculator to Your Website
- References
How to use the carpet value calculator
Enter the room, the carpet and its age, then read the verdict. Results stay hidden until you click Calculate, and invalid entries hide the results instead of showing a made-up number.
- Measure the room: length and width in feet. The tool multiplies them for area, so a 12 by 15 room is 180 sq ft.
- Enter the base price per sq ft: the material price before quality grading. The grade you pick next multiplies it.
- Pick quality and condition honestly: quality sets the starting value, condition discounts what survives age. Guessing excellent for a stained carpet is the fastest way to a flattering but useless number.
- Set age, padding and installation: age in years, padding Yes or No, and the installation rate per sq ft from the original job.
- Click Calculate: current value leads, with area, original cost, depreciated value, replacement cost and value remaining underneath, plus a verdict band.
Entries that break the math hide the results: length, width or price at zero or below, a negative age, or a negative installation rate. A blank age is treated as 0, which is a brand-new carpet, so check that field before trusting a high value.
How carpet value is actually calculated
There is no single official formula for what used carpet is worth, so this tool states its own plainly. Every house number below is a planning assumption, labelled as one, and the same numbers drive the calculator.
Original installed cost = (area × price × quality multiplier) + padding + (area × installation rate)
Age depreciation = smaller of (age × 17%) and 85%
Depreciated value = original cost × (1 − age depreciation) × condition multiplier
Current value = the larger of depreciated value and 5% of original cost
Replacement cost = (carpet cost + padding) × 1.15 + installation total
Padding is $1.25 per sq ft when Padding is set to Yes, and $0 when it is No. Installation counts in full toward original cost, but the replacement figure inflates only material plus padding by 15% and adds installation unchanged. That detail matters: the worked example replacement of $1,615.50 is 12.2% above the $1,440.00 original bill, not 15% above it, because installation is not inflated.
| Grade or condition | Options | Multiplier |
|---|---|---|
| Quality grade | Basic, Good, Better, Premium, Luxury | 1.0, 1.2, 1.5, 2.0, 3.0 |
| Condition | Excellent, Very good, Good, Fair, Poor | 0.95, 0.80, 0.65, 0.45, 0.25 |
| Verdict band (value remaining) | Strong, Moderate, Low | 60% and up, 30% to under 60%, under 30% |
Tax depreciation is a different question from market value, and the two should not be mixed. For rental property, carpeting that can be removed without damaging the structure is generally 5-year property under the tax rules, while the building itself runs 27.5 years, a distinction the flooring depreciation guidance from Stessa lays out. This calculator’s 17% yearly curve is steeper than either straight-line schedule: it is a value-planning curve, not a tax return. Talk to a tax professional before using any figure on a return.
Worked example: 12 by 15 room, better grade, 4 years old
The pre-filled example is a 12 by 15 foot room, better-grade carpet at $3.50 per sq ft, 4 years old, in good condition, with padding and $1.50 per sq ft installation. Every line below matches the calculator output exactly.
- Room area: 12 × 15 = 180 sq ft
- Carpet cost: 180 × $3.50 × 1.5 (better grade) = $945.00
- Padding: 180 × $1.25 = $225.00
- Installation: 180 × $1.50 = $270.00
- Original installed cost: $945.00 + $225.00 + $270.00 = $1,440.00
- Age depreciation: 4 × 17% = 68%, so 32% survives age
- Depreciated value: $1,440.00 × 0.32 × 0.65 (good condition) = $299.52
- 5% floor: $72.00, which does not bind here because $299.52 is higher
- Replacement cost: ($945.00 + $225.00) × 1.15 + $270.00 = $1,615.50
- Value remaining: $299.52 ÷ $1,440.00 = 20.8%, verdict Low residual value
Change one input and the story changes fast. The same room with no padding drops original cost to $1,215.00 and current value to $252.72, while the percentage remaining stays 20.8% because padding scales both sides. Switch condition to excellent and the same 4-year carpet is worth $437.76 instead of $299.52. Condition is where honest grading pays.
What carpet is worth year by year
Using the same 180 sq ft room and better-grade carpet in good condition, value falls steeply, then flatlines. The table is a direct run of the calculator at each age, not a separate estimate.
| Age | Share surviving age | Current value | Value remaining |
|---|---|---|---|
| New | 100% | $936.00 | 65.0% |
| 2 years | 66% | $617.76 | 42.9% |
| 4 years | 32% | $299.52 | 20.8% |
| 6 years | 15% | $140.40 | 9.8% |
| 8 years | 15% | $140.40 | 9.8% |
| 10 years and up | 15% | $140.40 | 9.8% |
Two details in that table surprise most owners. First, even a brand-new carpet in merely good condition is worth $936.00, not $1,440.00, because the good-condition multiplier of 0.65 applies from day one. Second, the 5% floor only bites when age and condition together push below it: a 10-year carpet in poor condition depreciates to $54.00 before the floor, and the tool reports $72.00 instead. That floor is a modelling choice, not a promise that anyone will pay $72.00 for old carpet.
What competing carpet calculators miss
The most common carpet value tool on the web multiplies price per square foot by area and stops there. That answers a shopping question, not a value question: it has no age, no condition and no quality grade, so a trashed 8-year carpet and a new one price the same. Tax-oriented depreciation tools do the opposite, running straight-line math over a fixed life with no room for the difference between a pampered carpet and one ruined by pets.
This calculator combines both sides: an age curve, a condition discount, a quality starting point, and a replacement figure in the same view, so keep versus replace is one comparison instead of two searches. It still has limits worth stating. It does not price stains room by room, does not adjust for brand or fibre beyond the grade multiplier, and does not know local labour rates. For the other half of the job, the carpet install cost calculator prices a new install, the carpet removal cost calculator prices the tear-out, and the carpet area calculator checks the room measurement itself before any of those figures are trusted.
When this number actually matters
Three situations use a depreciated carpet figure, and each needs a different caution. In an insurance claim, the insurer’s own schedule governs, and this estimate is a starting point for the conversation, not a settlement figure. In a landlord and tenant dispute, only damage beyond normal wear and tear can be charged, and only at depreciated value, never at new-carpet price: after about 7 years most carpet has little remaining value under standard depreciation, so a full-replacement charge for old carpet rarely stands up. When selling, a buyer discounts worn carpet whether or not a calculator says so, and the replacement cost line is usually the more persuasive number in negotiation than the depreciated value line.
Frequently asked questions
This tool applies 17% per year, capped at 85% total depreciation, as a planning estimate that tracks steep early value loss. For taxes, landlords depreciate tacked-down carpet over 5 years straight-line in the usual rental treatment, while glued-down carpet follows the 27.5-year property schedule. The tool curve and the tax schedule are different things, so do not use one as the other.
Yes. A luxury wool carpet can cost three times a basic polyester per square foot, so its starting value is proportionally higher in this tool, with a 3.0 multiplier against 1.0 for basic. Quality also stretches usable life: expect 5 to 8 years from basic carpet and 12 to 15 years or more from premium grades, though the tool still caps age depreciation at 85% regardless of grade.
Condition multiplies the age-depreciated figure from 0.95 for excellent down to 0.25 for poor. Two identical 4-year-old carpets can differ by almost four times in value on condition alone, which is why insurers and landlords inspect before they pay. In the worked example, moving from good to excellent lifts the value from $299.52 to $437.76.
Padding adds an estimated $1.25 per sq ft to the installed cost when Padding is set to Yes, and good padding extends carpet life by cushioning wear. It depreciates with the carpet, though: nobody pays extra for 8-year-old pad, and setting Padding to No removes the whole line from both original cost and replacement cost.
Compare the calculator’s current value against replacement cost. If residual value is under 30% and professional cleaning runs $200 to $400, replacement usually wins on pure economics. Above 60%, cleaning and a few more years is the smarter spend. Between 30% and 60%, the honest answer depends on stains, smell and how long you plan to stay, none of which a calculator can see.
Only for damage beyond normal wear and tear, and only for the depreciated value, not new carpet. After about 7 years most carpet has little or no remaining value under standard depreciation, so tenants generally cannot be charged full replacement. Keep photos and the move-in condition report: condition is the whole argument, and this calculator’s condition grades show why.
No. It is a planning estimate built from stated house assumptions: 17% yearly depreciation capped at 85%, quality multipliers from 1.0 to 3.0, condition multipliers from 0.95 to 0.25, $1.25 per sq ft padding and a 15% replacement uplift on material plus padding. An insurer or appraiser applies their own schedule and inspection, and their figure governs any claim or sale.
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References
- Stessa. Calculating Flooring Depreciation Life on Rental Property (carpet as 5-year property versus the 27.5-year building schedule; Schedule E and Form 4562 treatment). Accessed October 24, 2026.
- BMT Tax Depreciation. Residential depreciation rates reference sheet (PDF) (carpet effective life and rate context, used to contrast with this tool’s steeper 17% planning curve). Accessed October 24, 2026.
- SleepBloom. Carpet Depreciation: How Much Does It Depreciate Per Year In Rental Properties? (10% yearly depreciation context and 5 to 10 year lifespan discussion). Accessed October 24, 2026.
- HomeExchange. What is depreciation and how it is calculated/applied? (depreciation as value loss over useful life). Accessed October 24, 2026.
- Landifyr. Understanding Carpet Replacement and Painting Depreciation in Utah (straight-line versus declining-balance methods; 5 to 15 year carpet lifespan range). Accessed October 24, 2026.