Acres to Hectares Converter

Convert between acres and hectares with precision for land measurement and property calculations

Area Conversion Calculator

Enter the area value you want to convert

Select the unit to convert from

Conversion Result

0
hectares (ha)

Input

0 acres

Output

0 hectares

Conversion Factor: 1 acre = 0.404686 hectares | 1 hectare = 2.471054 acres

Base Calculation: 0 × 0.404686 = 0

Quick Conversions

Acres ➜ Hectares
1 ac0.404686 ha
5 ac2.02343 ha
10 ac4.04686 ha
50 ac20.2343 ha
100 ac40.4686 ha
Hectares ➜ Acres
0.404686 ha1 ac
2.02343 ha5 ac
4.04686 ha10 ac
20.2343 ha50 ac
40.4686 ha100 ac

Real-World Examples

🏟️ Football Field

American football field ≈ 1.32 acres

Equivalent to 0.53 hectares

🏞️ Yellowstone Park

Total area: 2.2 million acres

Equivalent to 898,317 hectares

🏡 Residential Lot

Average lot: 0.25 acres

Equivalent to 0.10 hectares

Conversion Formulas

Acres to Hectares

hectares = acres × 0.404686

Hectares to Acres

acres = hectares × 2.471054

Exact Values

1 acre = 0.40468564224 ha

1 hectare = 2.4710538147 ac

Unit Definitions

Acre

  • • US customary unit
  • • 43,560 square feet
  • • 1/640 of a square mile
  • • Traditional farming unit

Hectare

  • • Metric system unit
  • • 10,000 square meters
  • • 100m × 100m square
  • • International standard

Understanding Acres and Hectares

What is an Acre?

An acre is a traditional unit of area measurement in the US customary system. Historically, it was defined as the area that could be plowed by a single ox in one day. Today, it's precisely defined as 43,560 square feet or 1/640 of a square mile.

Historical Context

  • Originally based on the area a team of oxen could plow
  • One chain (66 feet) by one furlong (660 feet)
  • Still used in US, UK, and some Commonwealth countries
  • Common in real estate and agriculture

What is a Hectare?

A hectare is a metric unit of area measurement equal to 10,000 square meters or a square that is 100 meters on each side. It's the standard unit for measuring land area in most countries worldwide and is widely used in agriculture, forestry, and urban planning.

Practical Applications

  • International standard for land measurement
  • Used in scientific and agricultural contexts
  • Easier decimal-based calculations
  • About the size of a rugby field

Conversion Tips

Quick Mental Math

1 acre ≈ 0.4 hectares (for rough estimates)
1 hectare ≈ 2.5 acres (for rough estimates)

Memory Aid

"A hectare is about 2.5 times larger than an acre"

Common Use Cases

Real Estate: Property sizes and land sales
Agriculture: Farm and field measurements
Forestry: Woodland area calculations
Urban Planning: Development and zoning
Environmental: Conservation area sizing