Convert linear feet to linear yards and back. 1 linear yard = 3 linear feet. This bidirectional calculator is essential for carpet installers, fabric retailers, landscapers, and anyone working with yard-based materials. Avoid the common pitfall of confusing linear yards with square yards or cubic yards.
Linear Feet ↔ Linear Yards (Bidirectional)
3 LF = 1 LY
1 LY = 3 LF
Where Linear Yards Are Used: Industry Reference
Carpet & Flooring
Carpet is sold by the square yard but measured from rolls in linear yards. A 12′ wide roll selling 1 linear yard = 12 sq ft of carpet = 1.33 square yards. Carpet installers convert room dimensions to linear yards of roll needed: for a 12′ × 15′ room, you'd need 15 linear feet = 5 linear yards of 12′ wide roll. The carpet industry prices in square yards but sells by the linear yard — understanding the difference prevents over-ordering by 33%.
Fabric & Textiles
Fabric is sold by the linear yard from bolts that are typically 44"–60" wide. Upholstery fabric runs $15–$200+ per linear yard depending on quality. Drapery requires 2–3 linear yards per window width. A typical sofa needs 12–18 linear yards for reupholstering. Quilting cotton is sold in 1/4-yard increments. One linear yard of 44" fabric = 1,584 square inches of material.
Concrete Formwork
Concrete is ordered by the cubic yard, but formwork lumber is measured in linear feet and often converted to linear yards for large commercial estimates. A 10,000 sq ft slab with 4-foot-high forms has (10,000/100 × 2 sides) roughly 400 LF of perimeter = 133.3 linear yards of form boards. On large jobs, yards make the numbers cleaner: "We need 135 LY of 2×10 for edge forms."
Sports Fields & Landscaping
Athletic fields are measured in yards. A football field is 100 yards = 300 LF between goal lines, plus 10-yard end zones (60 LF total). Total field length = 120 yards = 360 LF. Landscaping edging and border materials are frequently priced per linear yard in bulk. Mulch and soil are sold by cubic yard, but the edging around a flower bed is measured in linear yards.
Fencing (Commercial)
Residential fencing is quoted in linear feet, but large commercial/industrial fence projects use linear yards. A mile of chain-link fence = 1,760 yards = 5,280 LF. A 10-acre perimeter fence for a solar farm might be quoted as "2,200 linear yards" rather than "6,600 linear feet" because the yard numbers are cleaner for estimation. Always verify which unit your quote uses.
Rope, Cable & Wire Rope
Marine and industrial rope is often sold by the linear yard in bulk. Mooring lines, winch cable, and synthetic rope for construction rigging are commonly quoted per yard rather than per foot. A 600-foot spool = 200 linear yards. When comparing prices, check the unit: a rope at $1.50/LY is the same as $0.50/LF, but $1.50 "per unit" without specifying yards vs. feet leads to costly mistakes.
Linear Feet to Linear Yards Conversion Table
Common lengths encountered in construction, flooring, and textile work.
| Linear Feet | Linear Yards | Practical Equivalent | Typical Application |
|---|---|---|---|
| 3 LF | 1.00 LY | 1 yardstick / 36 inches | Minimum fabric cut at most stores |
| 6 LF | 2.00 LY | Height of a tall person | Common drapery length per panel |
| 9 LF | 3.00 LY | 3 yardsticks end to end | Small area rug runner |
| 12 LF | 4.00 LY | Typical room width | Standard carpet roll drop for a 12′ room |
| 15 LF | 5.00 LY | Half a school bus length | Carpet for a 12′×15′ living room |
| 30 LF | 10.00 LY | Small parking space depth | Minimum carpet roll order from distributor |
| 60 LF | 20.00 LY | Length of a bowling lane | Half-bolt of upholstery fabric (standard bolt = 40–50 LY) |
| 90 LF | 30.00 LY | Width of a basketball court | Large room carpet installation |
| 120 LF | 40.00 LY | Standard fabric bolt length | One full bolt of upholstery fabric |
| 150 LF | 50.00 LY | Half a football field | Commercial hallway carpet run |
| 300 LF | 100.00 LY | Football field (100 yards) | Large commercial or athletic field project |
| 5,280 LF | 1,760.00 LY | One mile | Long-distance fence or pipeline estimate |
Carpet Industry Deep Dive: Linear Feet vs. Linear Yards vs. Square Yards
Carpet pricing is the most common place people encounter all three yard-based units simultaneously. Here's how they relate.
The Carpet Supply Chain
- Manufacturing: Carpet is produced on 12-foot-wide rolls — the industry standard width. Some commercial carpet comes in 13.5′ or 15′ widths.
- Wholesale: Distributors sell carpet to retailers by the linear yard from the roll. 1 linear yard from a 12′ roll = 12 sq ft × 3 = 36 sq ft = 4 square yards. Wait — that's 4 square yards per linear yard? No: 1 LY of 12′ wide carpet = 12′ × 3′ = 36 sq ft. 36 sq ft / 9 = 4 square yards. So 1 linear yard of 12′ carpet = 4 square yards of coverage.
- Retail: Consumers are quoted per square yard or per square foot. A room that's 12′ × 15′ = 180 sq ft / 9 = 20 square yards of carpet needed. From a 12′ roll, you need 15 LF = 5 LY of carpet.
- Installation: Installers charge by the square yard or square foot for labor, but the material waste factor is calculated from linear yard measurements of the roll.
Example: 12′ × 12′ room = 144 sq ft / 9 = 16 square yards of carpet. From a 12′ roll: 12 LF / 3 = 4 linear yards needed. 4 LY × 12′ width = 48 sq ft per linear yard? No: 4 LY from a 12′ wide roll covers 4 × 3 × 12 = 144 sq ft = 16 square yards. Correct. The formula: Linear Yards = Square Yards × 9 / (Roll Width in feet × 3) which simplifies to Linear Yards = Square Yards × 3 / Roll Width. For 12′ rolls: LY = SY / 4.
Worked Examples: Linear Feet to Linear Yards
| Scenario | Linear Feet | Linear Yards | Real-World Translation |
|---|---|---|---|
| Reupholster a 3-seat sofa | 45 LF of 54" fabric needed | 15 LY | At $25/LY = $375 in fabric; order 16 LY for pattern matching |
| Edge forms for a 40×60 concrete pad | 200 LF of perimeter forms | 66.67 LY | Order 68 LY of 2×10 form boards (2 sides of perimeter) |
| Carpet a 15×20 family room from 12′ roll | 20 LF of carpet roll needed | 6.67 LY | Order 7 LY; 20 LF × 12′ = 240 SF / 9 = 26.67 SY coverage |
| Hem curtains for 3 windows (floor-length) | 27 LF of drapery fabric required | 9 LY | 3 panels at 3 yards each = 9 LY total; typical for 8′ ceilings |
Common Mistakes When Converting LF to Linear Yards
Mistake #1: Confusing Linear Yards With Square Yards
This is the most expensive mistake in carpet buying. A room needs 20 square yards of carpet. From a 12′ roll, that's 5 linear yards (20/4). But if you confuse the units and order 20 linear yards, you're getting 80 square yards of carpet — 4× what you need, wasting $500–$2,000. Always check: the retailer gave you a square yardage number, but the roll is ordered in linear yards.
Mistake #2: Assuming 1 Yard = 1 Meter
1 yard = 0.9144 meters, not 1 meter. If a European fabric supplier quotes you 10 meters of fabric and you assume that's 10 yards, you'll get 10.94 yards — 9.4% more than expected. Conversely, if they quote 10 meters and you convert to yards (10/0.9144 = 10.94 yards) but round to 10, you order 0.94 yards too little. In fabric, that can mean not enough for pattern matching.
Mistake #3: Confusing Cubic Yards With Linear Yards (Concrete)
Concrete is always ordered by the cubic yard. A "10-yard pour" means 10 cubic yards of concrete, not 10 linear yards of forms. Your formwork for that pour might be 100 LF = 33.3 linear yards of lumber. But you don't order "33 yards of concrete." The word "yard" means completely different things in different contexts: cubic yard (volume), square yard (area), linear yard (length). Always ask "Which kind of yard?"
Mistake #4: Forgetting Fabric Width When Buying by the Yard
Fabric sold by the linear yard comes in different widths: quilting cotton (44"), home decor/upholstery (54"), extra-wide sheeting (108"). One linear yard of 44" fabric = 1,584 sq in. One linear yard of 108" fabric = 3,888 sq in. That's 2.45× more material for the same linear yardage. If you need 15 sq ft of fabric and buy 5 linear yards assuming 44" width, you get 5 × (44" × 36") = 7,920 sq in / 144 = 55 sq ft — over 3× what you needed. Always check the bolt width before calculating yardage.