How Big Is an Acre? Visual Guide for Land Buyers
Surveyed Texas acreage with oak trees, showing how big an acre of Central Texas land looks from the ground

How Big Is an Acre? A Visual Guide for Texas Land Buyers

An acre is 43,560 square feet, about 209 feet on each side. Here is what 1, 5, 10, and 20 acres look like, and how to read acreage on a Texas survey.

An acre is 43,560 square feet, or about 4,047 square meters. Laid out as a square, one acre measures roughly 208.7 feet on each side. An American football field without the end zones covers 48,000 square feet, so one acre is about 91 percent of the playing field, or a little less than the area between the goal lines.

La Tierra Realty is an Austin-based land company that sells surveyed, unrestricted acreage in Central and North Texas with owner financing through Stonebridge Purchasing (NMLS #2349261). The sections below convert an acre into everyday comparisons, show what 1, 5, 10, and 20 acres hold, explain the old Spanish land units still found on Texas deeds, and show how to read acreage on a survey.

How Many Square Feet Are in an Acre?

One acre equals exactly 43,560 square feet under the U.S. definition used in Texas deeds and surveys. That figure comes from the old English measure of a strip 1 furlong (660 feet) long and 1 chain (66 feet) wide: 660 times 66 equals 43,560. The National Institute of Standards and Technology lists the acre at 43,560 square feet and 4,046.873 square meters in its Handbook 44 unit tables.

An acre does not have to be square. Any shape that encloses 43,560 square feet is one acre, which is why a long, narrow tract and a compact square tract can both be “one acre.” Since January 1, 2023, NIST has retired the U.S. survey foot in favor of the international foot; the change affects acreage only in the sixth decimal place and does not change what a buyer owns.

UnitEquals one acreNotes
Square feet43,560Exact U.S. definition
Square meters4,046.9Metric conversion
Square yards4,840Common in older surveys
Hectares0.405One hectare is about 2.47 acres
Square miles1/640640 acres make one square mile, or one “section”

What Does an Acre Look Like in Real Life?

An acre looks like a square of land about 80 walking steps long on each side for an average adult, or a parking lot that holds about 100 to 150 cars. The comparisons below use standard dimensions, so you can picture an acre before you walk a tract.

ComparisonSizeShare of one acre
Football field, goal line to goal line (300 × 160 ft)48,000 sq ft1.10 acres
Football field with end zones (360 × 160 ft)57,600 sq ft1.32 acres
Basketball court, NBA (94 × 50 ft)4,700 sq ftAbout 9 courts per acre
Tennis court, doubles (78 × 36 ft)2,808 sq ftAbout 15 courts per acre
Typical suburban Texas lot (60 × 120 ft)7,200 sq ftAbout 6 lots per acre

The suburban lot comparison matters most for buyers moving from a subdivision. A family leaving a 7,200 square foot lot in Round Rock or Pflugerville for 2 acres in Lockhart is moving to about 12 times the space, enough for a house, a shop, a garden, and room for animals.

How Big Are 5, 10, and 20 Acres?

Five acres is 217,800 square feet, a square about 467 feet on a side; 10 acres is 435,600 square feet, about 660 feet on a side; and 20 acres is 871,200 square feet, about 933 feet on a side. A 10-acre tract is roughly the size of 7.5 football fields with end zones.

AcreageSquare feetSide of a squareWhat it typically holds in Central Texas
1 acre43,560209 ftHouse, septic field, driveway, small garden
2 to 3 acres87,120 to 130,680295 to 362 ftHouse, shop or barndominium, a few chickens or goats
5 acres217,800467 ftHome site plus a small pasture for one or two horses
10 acres435,600660 ftHome site, pasture, possible ag valuation with bees or grazing
20 acres871,200933 ftRoom for a small herd, a pond, and full privacy

A septic system also takes real space. Texas Commission on Environmental Quality rules require setbacks between a septic drain field and wells, property lines, and water, so most buyers need at least an acre for a house, a well, and a septic system to fit comfortably. La Tierra's guide to well, septic, and utility costs breaks down those budgets, and what you can do with 10 acres goes deeper on the larger sizes.

What Are Varas and Labors on a Texas Deed?

A vara is an old Spanish unit of length equal to 33⅓ inches in Texas, and a labor is a land area of 1,000,000 square varas, or about 177.1 acres. Many Central Texas tracts trace back to Spanish and Mexican land grants, so older deeds and surveys still describe boundaries in varas.

The Texas General Land Office, which keeps the state's original land grant records, lists these conversions for Texas surveys:

  • 1 vara = 33⅓ inches, or 2.778 feet.
  • 1 labor = 1,000,000 square varas, about 177.1 acres.
  • 1 league (sitio) = 25,000,000 square varas, about 4,428.4 acres.
  • 1 section = 640 acres, used in later railroad and school land surveys.

A buyer does not need to convert varas by hand. A current survey from a Registered Professional Land Surveyor states the acreage in modern units, which is one reason La Tierra tracts are sold with a survey.

How Do You Find the Acreage of a Tract?

The acreage of a Texas tract is stated on its survey and in the legal description of the deed, and the county appraisal district lists an estimate on its property search page. When the numbers differ, the current survey by a licensed surveyor controls, because appraisal district maps are for tax purposes and are not surveys.

  1. Read the survey. The plat shows each boundary line with a bearing and distance, plus the total area in acres and square feet.
  2. Check the deed. The legal description repeats the metes and bounds and the acreage “more or less.”
  3. Compare the appraisal district record. Caldwell, Hood, Johnson, and Bosque county appraisal districts publish acreage on each property card; small differences are common.
  4. Walk the corners. Surveyors set iron rods or pins at the corners. Finding them is the best way to see the size of the land in person.

The free land buyer's checklist lists what to ask for before you close, including the survey date and any easements that reduce usable acreage.

How Much Land Do You Need?

Most Central Texas buyers who plan a home, a shop, and a garden find that 2 to 5 acres is enough, while buyers who want livestock, an ag valuation, or more privacy look at 10 acres or more. County minimums for an agricultural valuation in much of Central Texas start around 10 acres for grazing and lower for beekeeping.

Price sets the other limit. The Texas Real Estate Research Center's second-quarter 2026 rural land report puts the Austin-Waco-Hill Country region at $8,040 per acre, up 8.63 percent from a year earlier, though small tracts close to cities sell for more per acre than large ranches. La Tierra's current tracts include Campo de Oro in Lockhart, with 2 to 3.8 acre lots from $150,000, and Eagle Ranch near Luling, with 10 to 13 acre lots from $209,000. See every lot on the available properties page, and read what an acre costs in Central Texas.

See What an Acre Looks Like in Person

The best way to understand acreage is to walk it. La Tierra Realty's surveyed, unrestricted tracts across Central and North Texas come with owner financing through Stonebridge Purchasing. Call (512) 980-1719 to schedule a visit. Atención en español.

Browse Texas Land Download the Free Land Buyer's Checklist

Sources: National Institute of Standards and Technology, Handbook 44, Appendix C, General Tables of Units of Measurement (2026); NIST, U.S. Survey Foot Deprecation notice (2022); Texas General Land Office, Land and Archives glossary of Spanish land measures (2026); Texas Commission on Environmental Quality, On-Site Sewage Facility rules, 30 TAC Chapter 285 (2026); Texas Real Estate Research Center at Texas A&M University, Texas Rural Land Markets Second Quarter 2026 (2026).

Frequently Asked Questions

How many acres is a football field?

A football field is about 1.32 acres including both end zones, measuring 360 by 160 feet, or 57,600 square feet. The playing field between the goal lines is 300 by 160 feet, or 48,000 square feet, which is about 1.1 acres. One acre is therefore a little smaller than the area from goal line to goal line.

How long does it take to walk around an acre?

Walking the edge of a square acre covers about 835 feet, since each side is about 208.7 feet. At an average walking pace of 3 miles per hour, the walk takes about 3 minutes. A 10-acre square has a perimeter of about 2,640 feet, or half a mile, and takes about 10 minutes.

Is an acre bigger than a hectare?

No. A hectare is 10,000 square meters, or about 2.47 acres, so one acre is about 40 percent of a hectare. Texas deeds, surveys, and appraisal district records use acres, while most countries outside the United States use hectares.

How many houses can fit on one acre?

In a typical suburban subdivision, four to six houses fit on one acre, because lots run about 7,000 to 10,000 square feet. On rural land with a well and septic system, one house per acre is a practical minimum, since TCEQ rules require setbacks between the septic drain field, the well, and the property lines.

Why does my survey say acreage “more or less”?

Texas deeds describe acreage as “more or less” because the boundaries, not the number, define what you own. The surveyor measures the lines on the ground, and small differences from older records are normal. A current survey by a Registered Professional Land Surveyor gives the most reliable acreage for a tract.

This article is general information for Texas land buyers and is not a survey or legal advice. Confirm the acreage and boundaries of any tract with a current survey by a Registered Professional Land Surveyor before you buy.

Keep reading

More Texas land guides

Text Us