Convert lot dimensions into acres, square feet, hectares, and square meters for property planning, listings, and land decisions.
Enter dimensions and click calculate to see results
1 Acre = 43,560 square feet
1 Hectare = 2.471 acres
1 Square Mile = 640 acres
Football Field = ~1.32 acres
You only need two measurements to estimate a rectangular parcel. The calculator converts your lot dimensions into the land units most buyers, agents, surveyors, and landowners use every day.
Enter the parcel length and width from your tape, plat, site plan, or survey sketch.
Pick feet, yards, meters, miles, or another supported unit for each side.
Click the button once and the tool multiplies the dimensions, then handles the area conversion.
Review acres first, then compare square footage, hectares, square meters, and square yards.
Use this land area calculator when your property is mostly rectangular, or when you can estimate the parcel as a clean rectangle for planning. That makes it useful for home lots, farm fields, buildable pads, pasture sections, and many commercial tracts. If your measurements are listed in feet and yards on a brochure, you can still mix units by choosing the correct unit beside each field.
For the best result, use dimensions from a recent property survey, recorded plat, or site plan. If you are measuring in person, pull from corner to corner along the boundary lines rather than along a fence that may sit inside the line. That one habit reduces many common lot-size errors.
An online acreage calculator is excellent for estimating parcel size during research, budgeting, or listing review. It is not a substitute for a licensed survey when you need legal certainty. If you are buying land, settling a boundary dispute, applying for subdivision approval, or checking setback and zoning rules, rely on official records.
You should also verify measurements when a deed uses metes and bounds, when a parcel follows a creek or road, or when slopes and easements affect the usable building area. The calculator gives you fast planning numbers. The survey gives you the official answer.
The main answer is acres, but the supporting units help you compare listings, review plans, and speak the same language as builders, agents, and county records.
Acres are the standard unit for larger U.S. parcels. Rural listings, farm ground, recreational land, and many residential tracts are advertised this way because acres make larger property sizes easier to compare. A result of 2.50 acres tells you more quickly than 108,900 square feet if you are shopping for open land.
Square footage is often the better unit for city and suburban lots. Builders use it for site coverage, patio planning, driveway layout, and impervious-surface limits. If your result is 12,000 square feet, you can picture building footprint, yard space, and setbacks more clearly than with 0.275 acres.
These metric units matter when you compare international listings, engineering plans, environmental reports, or government documents. One hectare equals about 2.471 acres, while one acre equals about 4,046.86 square meters. If you work across metric and U.S. systems, these conversions save time and reduce mistakes.
| Parcel | Square Feet | Acres | Typical Use |
|---|---|---|---|
| 50 ft × 120 ft | 6,000 | 0.138 | Urban infill lot |
| 100 ft × 150 ft | 15,000 | 0.344 | Suburban homesite |
| 208.71 ft × 208.71 ft | 43,560 | 1.000 | One square acre |
| 330 ft × 660 ft | 217,800 | 5.000 | Small field or pasture |
| 660 ft × 660 ft | 435,600 | 10.000 | Development tract or farm section |
This table is helpful when you want a fast lot size calculator in acres but also need the square footage for land planning. It also shows why small residential parcels are usually discussed in square feet while larger tracts are marketed by acreage.
If you want to know how to calculate acreage manually, the math is simple once everything is in the same unit.
For rectangular land, start with area:
Area = Length × Width
If your measurements are already in feet, convert square feet to acres with this formula:
Acres = Square Feet ÷ 43,560
If you measure in yards, meters, or miles, either convert those lengths to feet first or let the calculator do it. This is why an acres from length and width calculator is faster and usually safer than doing several manual conversions on paper.
Suppose your parcel is 220 feet by 330 feet.
So a 220 ft by 330 ft parcel is about 1.67 acres. That one example covers the exact reasoning behind most lot size and parcel size calculations you will make on this page.
A perfect square acre has sides of about 208.71 feet. That is a handy back-of-the-envelope check when a parcel claims to be about one acre.
One hectare equals 10,000 square meters or about 2.471 acres. If your engineering plan is metric, this helps you compare it to U.S. listings quickly.
One square mile equals 640 acres. This matters when you evaluate very large ranch, timber, or development sites.
Acreage numbers become more useful when you connect them to real property decisions. These examples show how people actually use land area calculations.
A homesite that measures 100 feet by 150 feet contains 15,000 square feet, or about 0.344 acres. That is large enough to compare against local zoning minimums, driveway plans, setback lines, and backyard goals. If two listings look similar, the one with 0.34 acres versus 0.22 acres may support a bigger home footprint or more outdoor space.
A rectangle that measures 330 feet by 660 feet equals 217,800 square feet, or exactly 5 acres. That is a clean example of how acreage helps with grazing plans, seeding estimates, and fencing budgets. If fencing costs $8 per linear foot, knowing both acreage and perimeter matters before you buy materials.
A listing might advertise 10 acres, while the engineer works in square meters. Since 10 acres equals about 40,468.56 square meters, you can compare the parcel to drainage plans, environmental reports, and utility layouts without switching back and forth by hand.
If a 1.67-acre parcel is listed for $150,000, the rough price is about $89,820 per acre. That does not replace an appraisal, but it gives you a quick benchmark for nearby land sales. Competitor pages that rank well often add cost context, and it is useful because buyers rarely think about land size without also thinking about price.
Imagine a 2-acre commercial pad. That equals 87,120 square feet. If local rules require parking, stormwater space, setbacks, and landscape buffers, the square footage view tells you whether the plan is realistic. The acreage view helps with market comparison. You usually need both.
Some assessor sites show acreage for rural land and square footage for smaller parcels. If your county record says 87,120 square feet, that is 2 acres. If a deed says 0.46 acres, that is about 20,038 square feet. This quick conversion step helps you spot obvious data-entry issues before you rely on a record for planning.
This is the biggest content gap across many basic acreage tools. Real parcels rarely behave like perfect rectangles, so your measurement method matters as much as the formula.
If your lot has a jog, cul-de-sac curve, creek edge, or angled side, divide it into smaller pieces. A common approach is one large rectangle plus one triangle. Measure each piece, calculate each area, and add them together. This method works well for planning sheds, fencing, pasture divisions, and basic property research.
For example, if one section is 150 feet by 200 feet, that part is 30,000 square feet. If the second section is a triangle with a 100-foot base and 80-foot height, its area is 4,000 square feet. Add them to get 34,000 square feet total, or about 0.780 acres.
Perimeter and acreage are not interchangeable. Two parcels can have the same acreage with very different boundary lengths. That matters when you budget for fencing, curb, irrigation, or clearing. If you only know the acreage, do not assume the perimeter without checking the parcel shape.
County GIS maps are useful, but they are often labeled as approximate. Recorded plats, subdivision maps, and surveys usually carry more weight. If your land listing says 5 acres but your quick math says 4.6 acres, check for road frontage, excluded tracts, access easements, or rounded marketing language.
This is especially common with older parcels where boundary lines were described in bearings and distances rather than clean modern geometry. A property survey is the safest path when the difference changes value or buildability.
In Texas, rural and ranch listings are frequently marketed by acreage, so buyers compare price per acre first. In Florida and California, smaller residential lots are often described in square feet even when a listing also includes acreage. If you are reviewing tax records, deeds, or MLS listings across states, always note which unit is being emphasized before you compare parcel size.
Use these calculators when you need to move from raw parcel size to cost, construction, or area conversion decisions.
Estimate room, lot, and building footprint area when you need detailed square footage instead of acreage.
Convert acres, hectares, square feet, square meters, and square miles when you already know the total area.
Turn lot area and slab dimensions into concrete volume estimates for patios, pads, and site work.
Estimate gravel for driveways, drainage zones, and pads after you confirm your parcel dimensions.
Compare monthly payment scenarios after you evaluate lot size, property price, and land purchase goals.
Calculate changes in lot size, price per acre differences, and markup or discount scenarios for land deals.
Quick answers to the acreage questions people ask most often when comparing land, listings, and parcel records.
Multiply length by width to get total area, convert that area to square feet if needed, then divide by 43,560 to get acres. For example, 220 feet by 330 feet equals 72,600 square feet, and 72,600 divided by 43,560 equals about 1.67 acres.
One acre equals exactly 43,560 square feet. That fixed conversion is the base for most land area calculations in the United States.
Yes. If you know total square footage, divide by 43,560 to convert it to acres. If you only know length and width, the calculator does the square-foot step for you first.
Break the parcel into smaller rectangles, triangles, or circles, calculate each section separately, and then add the areas together. For legal boundaries or complex shapes, use a survey map or a licensed surveyor.
The basic rectangle formula is acres equals length times width in feet divided by 43,560. If your measurements are in yards, meters, or miles, convert them to feet first or use the calculator's unit selector.
No. A hectare is larger than an acre. One hectare equals about 2.471 acres, while one acre equals about 0.4047 hectares.
A 100 foot by 200 foot lot has 20,000 square feet. Divide 20,000 by 43,560 and the lot size is about 0.459 acres.
It depends on the county and the type of property. Rural land is often described in acres, while many suburban and urban lots are recorded in square feet. Tax bills still rely on official assessor or survey records rather than an informal estimate.
Use the calculator as a quick check, then compare the deed, plat map, and county records. If the numbers still conflict, ask for a survey because boundary lines, easements, and old measurements can change the reported parcel size.