How accurate is this area converter?

The converter uses precise conversion factors and displays results with appropriate decimal precision. All conversions are mathematically exact based on internationally recognized unit definitions.

How do I convert acres to hectares?

Enter your area value, select 'Acres' as the source unit, and the hectare conversion will appear automatically. 1 acre equals approximately 0.405 hectares.

Can I use this converter on mobile?

Yes! The area converter is fully responsive and works on all devices. The numeric keyboard automatically appears on mobile for easy input.

ToolPages.areaConverter.title

ToolPages.areaConverter.description

地図で面積を測定

面積を入力

面積の測定値を入力してください

値

元の単位

変換結果

Square Meters

m²

Metric unit, commonly used worldwide

Square Feet

ft²

Imperial unit, common in US and UK

Square Yards

yd²

Imperial unit for smaller plots

Square Miles

mi²

Imperial unit for large areas

Square Kilometers

km²

Metric unit for large areas

Acres

Common for farmland and real estate

Hectares

Metric unit for agricultural land

Ares

Equal to 100 square meters

Decares

daa

Equal to 1,000 square meters

畝

Traditional Chinese land unit

Rai

rai

Thai land measurement unit

Square Inches

in²

Small area measurements

Square Chains

ch²

Surveying unit

Rood

Quarter acre (historical)

クイックリファレンス

よく使う面積変換:

• 1エーカー = 43,560平方フィート
• 1ヘクタール = 10,000平方メートル
• 1エーカー = 0.405ヘクタール
• 1平方マイル = 640エーカー

Usage Tips:

• 上のタブでカテゴリを切り替え
• すべての結果が即座に更新
• コピーアイコンをクリックして保存
• 小数値でも使用可能

How the Area Converter Works

The area converter helps you quickly convert between different units of land measurement. Whether you need to convert acres to hectares, square meters to square feet, or any other combination, this tool handles it instantly with precision.

Common Area Conversions

1 acre0.405 hectares (ha)
1 hectare2.471 acres
1 square mile259 hectares (ha)
1 square km100 hectares (ha)
1 square meter10.764 square feet
1 square foot0.0929 square meters
1 square yard0.836 square meters

Why Use This Converter

✓ Supports 9+ area units (acres, hectares, square meters, square feet, square miles, square km, ares, decares)
✓ Real-time conversion with high precision decimal places
✓ Works on all devices - mobile, tablet, and desktop
✓ No sign-up required - completely free
✓ Instant results with copy-to-clipboard functionality
✓ Perfect for farmers, surveyors, real estate professionals, and land planners

Frequently Asked Questions

What area units does this converter support?

The converter supports: square meters (m²), square feet (ft²), square yards (yd²), square miles (mi²), square kilometers (km²), acres (ac), hectares (ha), ares (a), and decares (daa).

How accurate is the conversion?

The converter uses precise, internationally-recognized conversion factors and displays results with full decimal precision. All conversions are mathematically exact.

How many acres is a hectare?

1 hectare equals approximately 2.471 acres. Conversely, 1 acre equals about 0.405 hectares.

Can I use this on my phone?

Yes! The area converter is fully responsive and works perfectly on mobile devices. The numeric keyboard automatically appears for easy input.

What's the difference between acres and hectares?

Both measure land area. Acres are used primarily in the US, UK, and Canada. Hectares are used in most other countries and by international standards. 1 hectare is larger than 1 acre.

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