Square Mile to Square Yard
mi²
yd²
Conversion History
| Conversion | Reuse | Delete |
|---|---|---|
1 mi² (Square Mile) → 3097599.9999972021485568 yd² (Square Yard) Just now |
Quick Reference Table (Square Mile to Square Yard)
| Square Mile (mi²) | Square Yard (yd²) |
|---|---|
| 1 | 3,097,599.9999972021485568 |
| 23 | 71,244,799.9999356494168064 |
| 36 | 111,513,599.9998992773480448 |
| 303 | 938,572,799.9991522510127104 |
| 1,000 | 3,097,599,999.9972021485568 |
| 268,596 | 832,002,969,599.2485082937622528 |
About Square Mile (mi²)
A square mile (mi²) is a large imperial unit of area equal to 640 acres or approximately 2.59 km², used primarily in the United States for land area of counties, cities, and states. New York City covers about 303 mi²; Texas is roughly 268,596 mi². In the US, the Public Land Survey System divides land into townships of 36 mi² and sections of 1 mi². Population density in US contexts is often reported as people per square mile. The unit is not used in official international statistics, where km² is the standard.
Manhattan island is about 23 mi². The state of Texas is roughly 268,596 mi². A standard US township is 36 mi².
About Square Yard (yd²)
A square yard (yd²) is one square with sides of one yard (3 feet), equal to 9 ft² or approximately 0.836 m². It is used in the US and UK for carpeting, fabric, and sports field dimensions. American football fields are measured in yards, and turf installation quotes in the US are typically per square yard. One square yard of carpet covers the same area as 9 square feet, making the conversion straightforward. The unit is less common than square feet but persists in specific trades and sports contexts in the US.
Carpet is often priced per square yard in the US. An American football field is about 6,400 yd² (including end zones).
Square Mile – Frequently Asked Questions
Why does the US still use square miles for land area?
The Public Land Survey System (PLSS), established by the Land Ordinance of 1785, divided US territory into 6-mile × 6-mile townships (36 mi²) and 1-mile × 1-mile sections (1 mi², = 640 acres). This grid underlies property deeds, county boundaries, and road layouts across most of the western US. Switching to km² would require legal redefinition of millions of property descriptions — a transition with no political appetite.
Is Manhattan really 23 square miles?
Manhattan borough is 22.83 mi² (59.1 km²), making it one of the most densely populated places on Earth at about 71,000 people/mi². The island itself (excluding water area) is about 13.4 mi². For comparison, the entire city of New York is 302.6 mi², of which 36% is water. Central Park occupies about 1.3 mi² — nearly 6% of Manhattan's land area.
Which US state is the largest by square miles?
Alaska is by far the largest at 663,268 mi² — over twice the size of Texas (268,596 mi²). Alaska is so large it would be the 18th largest country in the world if independent. For perspective, the entire Lower 48 states fit within Alaska about 5 times over in land area. Alaska also has the longest coastline of any US state at 33,904 miles.
How big is one square mile in everyday terms?
One square mile is a square about 1,609 m (just over a mile) on each side. A standard city grid: in Chicago, the city blocks are laid out on a 1-mile square grid, so 16 standard blocks (4 × 4) = 1 mi². Walking the perimeter of 1 mi² takes about 1 hour at a moderate pace. In rural areas, US county road grids typically run every mile, creating a visible 1 mi² checkerboard visible from aircraft.
What is the US Public Land Survey System and why is it based on square miles?
The PLSS divides most land west of the Appalachians into a grid of 6×6 mile townships, each split into 36 sections of 1 mi² (640 acres). Established by the Land Ordinance of 1785, it still defines property boundaries for roughly 1.5 billion acres across 30 states. County roads in the Midwest often follow PLSS section lines, creating the visible checkerboard pattern from the air. The system predates metric adoption and is so embedded in US land titles that converting to km² would require re-recording tens of millions of deeds.
Square Yard – Frequently Asked Questions
Why is carpet sold by the square yard in the US?
Carpet has been sold by the square yard in the US since it was manufactured in standard 12-foot-wide rolls — 3 yards wide. Measuring room dimensions in yards and multiplying gave the number of yd² needed directly from the roll width. The tradition persists even as some retailers have shifted to ft². The conversion is 1 yd² = 9 ft², so a 100 yd² quote equals 900 ft² — a fact worth verifying when comparing carpet estimates.
How big is an American football field in yd²?
The playing field is 100 yards × 53.33 yards = 5,333 yd² (with end zones it is 120 × 53.33 = 6,400 yd²). This is approximately 4,459 m² or about 0.45 hectares. Football "yardage" is the defining feature of the sport — rushing and passing yards, field position, first-down distances. All distances in American football are measured in yards, making yd² a natural area unit for the sport.
Is fabric sold in yd² or linear yards?
Fabric is sold in linear yards — the length of fabric from the bolt (which has a fixed width, usually 44–60 inches for quilting fabric, 54–60 inches for upholstery). When you buy "2 yards" of fabric you get a piece 2 yards long × the full bolt width. Patterns specify "2½ yards of 44-inch fabric" — you multiply 2.5 × (44/36) ÷ 9 to get yd² if needed. Tile and flooring are sold by yd² or ft²; fabric almost always by linear yard.
When did the UK stop using square yards for land?
The UK officially metricated land measurement under the Weights and Measures Act 1985, mandating m² for official purposes. In practice, residential property was quoted in ft² and yd² through the 1980s–1990s. By the 2000s, m² dominated professional surveying and estate agency descriptions in Scotland and Wales. England is still transitioning — many listings show both ft² and m² today, with yd² now virtually absent.
How do concrete and paving contractors use yd²?
US concrete contractors bid per square yard of surface area for flatwork (patios, driveways, footpaths). Standard concrete thickness is 4 inches (one third of a foot), so 1 yd² × 0.333 ft deep = 0.333 ft³. One cubic yard (27 ft³) of concrete covers 27 ÷ 0.333 = 81 ft² = 9 yd² at 4-inch depth. Concrete is ordered in cubic yards, making yd² convenient as an intermediate unit.