Acres to Hectares Calculator for US Farmland & Ranches

Free acre-to-hectare calculator built for American farmers, ranchers, and land brokers. Price ground in acres, report it in hectares — instant results, no sign-up.

Area Conversion Calculator

1 ac = 0.404686 ha

The quick answer for 1 Acres — type any value below for the exact result

Enter Acres

Acres

Result in Hectares

Hectares

Acre to Hectare Conversion Formula

To convert acres to hectares, multiply the value by 0.404686. One acre covers 43,560 square feet (4,046.86 square meters), while one hectare spans 107,639 square feet (10,000 square meters) — so it takes about 2.47 acres to fill a hectare.

1 ac = 0.404686 ha

Acres and Hectares Explained

Acres (ac)

An acre (ac) is a traditional land unit equal to 43,560 square feet (about 4,046.86 square meters) — historically the strip one furlong long by one chain wide. It's the everyday measure of American land: a suburban lot runs about a quarter acre, an NFL football field including end zones covers 1.32 acres, and a full survey section is 640 acres.

Where it is used: Acres rule American real-estate listings, USDA farm statistics, county tax rolls, and land-title documents from Texas ranches to Iowa row-crop country.

Origin: The acre derives from Old English æcer, meaning open field — the amount a medieval ox team could plow in a day. It was standardized at 4,840 square yards and later set at exactly 4,046.86 square meters.

Hectares (ha)

A hectare (ha) is the metric land unit equal to 10,000 square meters — a square 100 meters on each side, or 2.471052 acres. It's the global currency of agriculture and forestry: family farms in Europe run tens of hectares, farm-subsidy paperwork counts them, and a 100 ha property is a serious commercial operation.

Where it is used: Hectares are standard for farmland, plantations, and official land statistics in Europe, Latin America, Africa, Australia, and UN/FAO reporting.

Origin: Introduced with the French metric system from the Greek hekaton (hundred), the hectare equals 100 ares and was confirmed by international metric conventions in the 19th century.

Acres to Hectares Conversion Table

Acres (ac)	Hectares (ha)
0.1 ac	0.0404686 ha
0.25 ac	0.1011715 ha
0.5 ac	0.202343 ha
1 ac	0.404686 ha
2 ac	0.809372 ha
3 ac	1.214058 ha
5 ac	2.02343 ha
7.5 ac	3.035145 ha
10 ac	4.04686 ha
15 ac	6.07029 ha
20 ac	8.09372 ha
25 ac	10.11715 ha
40 ac	16.18744 ha
50 ac	20.2343 ha
75 ac	30.35145 ha
100 ac	40.4686 ha
160 ac	64.74976 ha
200 ac	80.9372 ha
320 ac	129.49952 ha
640 ac	258.99904 ha

Hectares to Acres Conversion Table

Hectares (ha)	Acres (ac)
0.1 ha	0.247105163 ac
0.25 ha	0.6177629075 ac
0.5 ha	1.2355258151 ac
1 ha	2.4710516302 ac
2 ha	4.9421032603 ac
5 ha	12.3552581508 ac
10 ha	24.7105163015 ac
20 ha	49.4210326031 ac
25 ha	61.7762907538 ac
50 ha	123.5525815076 ac
100 ha	247.1051630153 ac
200 ha	494.2103260306 ac

Acres to Hectares in Everyday Objects

Common real-world examples that make Acres and Hectares easy to picture at a glance.

	Acres (ac)	Hectares (ha)
An American football field	1.32 ac	0.53418552 ha
A FIFA-regulation soccer field	1.58 ac	0.63940388 ha
A US suburban residential lot	0.25 ac	0.1011715 ha
A full survey section of Midwest farmland	640 ac	258.99904 ha
A Major League Baseball field	4.5 ac	1.821087 ha
Golden Gate Park in San Francisco	350.8893314817 ac	142 ha
Central Park in New York	842.6286058821 ac	341 ha

When You Need Acres to Hectares Conversions

International Farmland Deals

A 250-acre corn and soybean tract in Iowa converts to 101.17 ha for the overseas investment committee, whose portfolio benchmarks — price per hectare, yield per hectare — all run metric.

Commodity Yield Benchmarking

USDA county averages arrive in bushels per acre while FAO comparisons need hectares. Converting a 5-acre test plot to 2.023 ha lets both datasets describe the same ground.

Ranch and Grazing Plans

Montana and Wyoming ranch budgets quote carrying capacity per section — 640 acres = 259 ha — so metric-minded consultants can apply their hectares-per-animal rules directly.

Vineyard and Orchard Planting

A 12-acre vineyard in Napa or Walla Walla converts to 4.86 ha before ordering stock, since European nurseries sell vines by the hectare at densities like 4,000 plants per ha.

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How to Use

1

Enter Your Land in Acres

Type the acreage straight off the deed or MLS listing — say, 40 acres, the classic quarter-quarter section of Midwest farmland
2

See the Hectare Equivalent

The answer appears instantly: 40 acres = 16.19 ha, exactly what overseas buyers and extension agronomists ask for
3

Copy or Reverse

Paste the result into your purchase offer, or hit Swap to turn a hectare-based quote back into acres
4

Check the Table

Scan the table for benchmarks like 5 acres = 2.023 ha and 100 acres = 40.47 ha while comparing listings in Iowa or Texas

Why Use Be Converter?

Instant Conversion

Get precise acre-to-hectare results in real time as you type — built for fast-moving county land auctions and tight closing deadlines

Precision Guaranteed

Runs on the exact factor of 0.404686 ha per acre, straight from the acre's official 43,560-square-foot definition — the same math your county assessor uses

Handy Reference Table

Common parcel sizes at a glance — from 1 acre (0.404686 ha) to a full 640-acre survey section (259 ha) — no spreadsheet needed

Swap with One Click

Toggle back to hectares-to-acres instantly when the county recorder lists acres but the overseas investor quotes hectares

Free & Unlimited

No sign-up, no credit card. Convert every section in the county as many times as your due diligence requires — always free

Completely Private

All calculations run locally in your browser. Your land-deal numbers never leave your phone or laptop

Frequently Asked Questions

How many hectares are in 1 acre?

1 acre equals 0.404686 hectares — round to 0.40 ha for quick math. Ten acres therefore come out to almost exactly 4.047 ha.

How do I convert 10 acres to hectares?

Multiply 10 by 0.404686, giving 4.04686 ha. An 11-acre hayfield, for comparison, runs about 4.45 ha.

What is 100 acres in hectares?

100 acres equals 40.47 hectares (100 × 0.404686 = 40.4686). That's a solid family farm in Illinois, or one big field on a Kansas grain operation.

Why does the US use acres while Europe uses hectares?

The acre is inherited from English land tradition and survives in US surveys, where public land is still described in 640-acre sections — exactly 259 ha. Metric countries adopted the hectare for agriculture, so cross-border farm deals are constantly converting between the two.

Is an acre bigger than a hectare?

No. A hectare is larger: 1 ha = 2.471052 acres. An acre covers only about 40% of a hectare — roughly one and three-quarter American football fields, end zones included.

How many hectares is a 160-acre quarter section?

160 acres equals 64.75 hectares (160 × 0.404686). Quarter sections — a half-mile by half-mile square — are the classic parcel in Kansas, Nebraska, and the Dakotas.

How many hectares is 5 acres?

5 acres equals 2.023 hectares (5 × 0.404686 = 2.02343). That's a typical hobby-farm size for a small orchard, a horse pasture, or a few head of cattle.

How do I convert a price per acre to price per hectare?

Multiply by 2.471052, since one hectare contains that many acres. Prime Iowa farmland at $10,000 per acre equals $24,710.52 per hectare — the apples-to-apples figure for international farmland price comparisons.

About the Acres to Hectares Calculator

Our free online acres-to-hectares converter handles land measurement for American farms, ranches, vineyards, and timberland. The acre is the everyday unit in US land offices, USDA reports, and county courthouses, while the hectare governs agriculture across Europe, Latin America, Oceania, and FAO statistics. Whether you're pricing a quarter section in Nebraska, marketing a Napa Valley vineyard, or fielding questions from an overseas buyer, this tool applies the exact factor of 0.404686 hectares per acre every time.

Expert Tips for Converting Acres to Hectares

Think in sections: 640 acres = 259 ha exactly. Halve it and you get 320 acres = 129.5 ha, then 160 acres = 64.75 ha — the parcels every surveyor and county assessor quotes.

USDA yields come in bushels per acre while FAO tables use metric tons per hectare; convert your acreage first (multiply by 0.404686), then rescale the yield to match.

Stocking rates convert the same way: one cow-calf pair per 2 acres equals one per 0.81 ha (2 × 0.404686), a handy figure when a foreign buyer or grazing consultant works in metric.

For vineyard or orchard planning, convert before you order: a 5-acre site in Oregon's Willamette Valley is 2.023 ha, and European nurseries price vines per hectare.

Mental shortcut: divide acres by 2.5 for a quick ballpark — 100 acres gives 40 ha against the exact 40.47, close enough for a walk-the-field estimate.