Acreage Calculator — Land Area Converter & Parcel Size

Convert acres, square feet, hectares, and square yards, or calculate acreage from a rectangular parcel's length and width — plus a football-field comparison.

July 8, 2026

Calculator Mode

Length

Width

Unit

Parcel Area

1.3774 acres

Square Feet: 60,000

Square Meters: 5,574.18

Hectares: 0.5574

Square Yards: 6,666.67

≈1.04 football fields (with end zones, 1.32 acres each)

≈1.25 football fields (playing surface only, 1.10 acres each)

Conversions use exact constants: 1 acre = 43,560 sq ft = 4,046.86 sq m = 0.404686 hectares = 4,840 sq yd; 1 hectare = 2.47105 acres = 10,000 sq m. Rectangle mode converts your length and width to meters first, multiplies for area, then converts that area into every unit. The football-field benchmark uses the full field including end zones (360×160 ft ≈ 1.32 acres) alongside the playing surface alone (300×160 ft ≈ 1.10 acres) — the two figures differ because they measure different areas, which is why you'll see both "1.1 acres" and "1.3 acres" cited elsewhere for the same field.

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Reference Values

Last verified: Jul 8, 2026

Category	Range	What It Means	Status
1 Acre in Square Feet ★	43,560 sq ft	The exact legal-definition conversion — an acre has always been defined in terms of square feet (originally 1 chain × 1 furlong), so this figure is a fixed constant, not a rounded average.	★ Best
1 Acre in Square Meters ★	4,046.86 sq m	Derived from the exact foot-to-meter conversion (1 ft = 0.3048 m), so this is precise to the decimal shown, not an approximation.	★ Best
1 Acre in Hectares ★	0.404686 hectares	Hectares are the metric-system equivalent of an acre for land area — most of the world outside the US, UK, and a few other countries uses hectares instead of acres.	★ Best
1 Acre in Square Yards	4,840 sq yd	Common in the UK and in older US real estate and surveying documents, where yards were the standard linear measure.	Good
1 Hectare in Acres ★	2.47105 acres	The reverse of the acre-to-hectare conversion — useful when comparing US land listings (acres) against international ones (hectares).	★ Best
1 Hectare in Square Meters ★	10,000 sq m	A hectare is defined as exactly a 100 m × 100 m square, making it a clean round number in the metric system (unlike the acre in square meters).	★ Best
Football field WITH end zones	360 × 160 ft = 57,600 sq ft ≈ 1.32 acres	The full field including both 10-yard end zones — this is the figure most commonly cited as "a football field is about 1.3 acres," but it includes area that isn't actual playing field.	Good
Football field WITHOUT end zones	300 × 160 ft = 48,000 sq ft ≈ 1.10 acres	Just the 100-yard playing surface, excluding end zones — some sources use this narrower figure instead, which is why you'll see "1.1 acres" and "1.3 acres" both cited for a football field depending on the source.	Okay

Source: US customary and metric land-area conversion constants derived from exact legal unit definitions (1 acre = 43,560 sq ft; 1 international foot = 0.3048 m exactly; 1 hectare = 10,000 sq m), per NIST Handbook 44 Appendix C and USDA/NRCS land-measurement references. Football field dimensions per official NFL field specifications (360 ft × 160 ft overall, 300 ft × 160 ft playing surface excluding end zones).

Worked Examples

Converting 1 Acre to Every Other Unit

Value: 1
From Unit: Acres

43,560 sq ft = 4,046.86 sq m = 0.404686 hectares = 4,840 sq yd

These are the base conversion constants — every other conversion on this calculator is derived by scaling these four figures up or down from 1 acre.

Converting 2.5 Hectares to Acres

Value: 2.5
From Unit: Hectares

6.18 acres

2.5 × 2.47105 = 6.18 acres. The same 2.5 hectares also equals 25,000 sq meters and about 269,098 sq ft — useful when comparing a metric land listing against a US one.

Rectangular Parcel: 200 ft × 300 ft

Length: 200 ft
Width: 300 ft

1.38 acres

Area = 200 × 300 = 60,000 sq ft. Acres = 60,000 ÷ 43,560 = 1.38 acres (also equals 5,574.2 sq m or 0.557 hectares).

Rectangular Parcel in Metric: 100 m × 50 m

Length: 100 m
Width: 50 m

1.24 acres (0.5 hectares)

Area = 100 × 50 = 5,000 sq m = 0.5 hectares exactly. Converting to acres: 5,000 ÷ 4,046.86 = 1.24 acres.

A 5-Acre Lot in Football Fields

Area: 5 acres

≈3.78 fields (with end zones) or ≈4.54 fields (playing surface only)

5 ÷ 1.32 ≈ 3.78 full fields including end zones; 5 ÷ 1.10 ≈ 4.54 fields counting only the 100-yard playing surface — the two benchmarks diverge because they measure different things, which is why both numbers get cited for the same acreage.

How to Use This Calculator

1

Choose a mode

"Rectangle / Parcel" calculates acreage from a length and width; "Unit Converter" converts a single value you already have between acres, square feet, square meters, hectares, and square yards.
2

Enter your numbers

In Rectangle mode, enter length and width plus their unit (feet, meters, or yards). In Converter mode, enter one value and pick its starting unit.
3

Read the converted area

Results appear instantly in all five units at once — acres, square feet, square meters, hectares, and square yards — so you don't need to re-enter anything to see a different unit.
4

Check the football-field comparison

Rectangle mode also shows how many football fields your parcel is equivalent to, using both the full field (with end zones) and the playing surface alone (without end zones), since both are commonly cited benchmarks.

What Each Value Means

Acre (acres): The standard US and UK unit of land area, legally fixed at exactly 43,560 square feet. Originally defined as the area a team of oxen could plow in one day — a strip one chain (66 ft) wide by one furlong (660 ft) long.
Hectare (hectares): The metric-system land-area unit used across most of the world, defined as exactly a 100 m × 100 m square (10,000 sq m). Equal to about 2.47105 acres.
Square Feet (sq ft): The base unit most US rectangular-parcel calculations start from — length in feet multiplied by width in feet. 43,560 sq ft make up one acre.

Frequently Asked Questions

How many square feet are in an acre?

An acre is exactly 43,560 square feet. This isn't a rounded approximation — it's the legal definition, historically derived from a rectangular strip one chain (66 ft) wide by one furlong (660 ft) long, which multiplies out to exactly 43,560 sq ft. Every other acre conversion (square meters, hectares, square yards) is calculated from this fixed constant.

How do I calculate acreage from length and width?

Multiply length by width to get the area in square feet, then divide by 43,560. For example, a parcel that's 200 ft by 300 ft covers 60,000 sq ft, and 60,000 ÷ 43,560 = 1.38 acres. If your dimensions are in meters or yards instead of feet, convert them to a common unit first — this calculator's Rectangle mode does that conversion automatically regardless of which unit you enter.

How many acres is a football field?

It depends on which measurement you mean, and this is where a lot of confusion comes from. The full field including both end zones (360 ft × 160 ft = 57,600 sq ft) is about 1.32 acres. The playing surface alone, excluding the end zones (300 ft × 160 ft = 48,000 sq ft), is about 1.10 acres. Both figures get cited as "a football field" depending on the source, so always check which version a comparison is using before you rely on it.

What's the difference between an acre and a hectare?

An acre is the traditional US and UK land-area unit (43,560 sq ft), while a hectare is the metric equivalent used across most of the rest of the world, defined as exactly 100 m × 100 m (10,000 sq m). One hectare equals about 2.47 acres, so a 10-hectare farm is roughly 24.7 acres. If you're comparing a US property listing to an international one, converting to a common unit first avoids under- or over-estimating the size difference.

Why do real estate listings sometimes round acreage differently?

Acreage is usually calculated from a survey's exact square footage, then rounded for the listing — some agents round to the nearest hundredth of an acre (e.g., 1.38 acres), others round to the nearest tenth (1.4 acres) or even the nearest quarter-acre. Small parcels are more sensitive to this rounding in percentage terms than large ones. For anything where the exact boundary matters — like a property line dispute or a building setback requirement — always use the acreage figure from an official surveyed plat, not a rounded listing number.