Carpet Calculator: Rolls

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About this app

Carpet Calculator does the math area-only calculators get wrong.

Carpet comes on a fixed-width roll - 12 ft (or 13.5/15 ft, or 4 m). So the real
question isn't "how many square feet" - it's "how many linear yards of roll do I
order, where do the seams fall, and how much waste do I pay for?" This app answers
exactly that.

ENTER A ROOM, GET INSTALLER-GRADE NUMBERS
- Linear yardage to order from the roll - the number you actually buy
- Number of seams + linear feet of seam tape
- A clear top-down layout diagram: roll strips, seam lines, lay direction
- Purchased area vs room area, so you see your real waste (adjustable 5-20%)
- Optional cost by $/sq yd, $/sq ft, or linear yard

BUILT FOR HOW CARPET ACTUALLY GOES DOWN
- Feet-inches-and-fractions input (a real tape-measure picker) - or metric
- Lay-direction choice (auto / lengthwise / widthwise)
- T-seam warning: flags layouts that may need a T-seam - because not all carpet
can be T-seamed (verify pile & pattern with your supplier)
- Pattern-repeat alignment for patterned carpet (Pro)

SAVE YOUR JOBS - NOT JUST A CALCULATION
- Save each room as a named job with client and status
- Re-open and re-estimate anytime
- Export a clean PDF or share-image quote for your client (Pro)
- Multi-room jobs that combine into one roll order (Pro)

NO TRICKS
- Calculate your first room free, forever - no paywall before you see value
- No account. No sign-up. No ads.
- Pro is a one-time LIFETIME option or a subscription if you prefer - your
choice. We know the trade hates renting a calculator.

For carpet installers, flooring contractors, retail estimators, and DIY
homeowners re-carpeting a room.

Estimates are based on roll-width layout and should be verified with your carpet
supplier. Roll widths and seam rules vary by product.
Carpet is sold by the roll. Get real linear yardage, seams and waste.
Updated on
Sep 7, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • No data shared with third parties
    Learn more about how developers declare sharing
  • This app may collect these data types
    Financial info, App activity and 2 others
  • Data is encrypted in transit
  • Data can’t be deleted

What’s new

First release. Roll-aware yardage, seam layout with T-seam warnings, saved jobs, and client quotes.