Square Kilometers (km²) to Acres Converter
Enter a value to instantly convert between area units.
1 Square Kilometer = 247.1054 Acre
Key Formulas
Acre → Square Foot
ft² = ac × 43560Square Foot → Acre
ac = ft² × 0.0000229568Hectare → Acre
ac = ha × 2.47105Acre → Hectare
ha = ac × 0.404686Formula
acres = km² × 247.105381One square kilometer equals about 247 acres — roughly 100 hectares. This conversion is essential for comparing farmland, estates, and land holdings between metric and imperial countries. US farmers buying land abroad, international real estate investors, and agricultural economists frequently convert km² to acres.
Source: NIST SP 811, Table B.8
Frequently Asked Questions
Real-World Examples
An international farmer converting 0.5 km² European plot to acres for US-based investors.
0.5 km² = 123.55 ac
A real estate analyst noting 1 km² ≈ 247 acres for a comparative land pricing report.
1 km² = 247.1 ac
An agricultural economist converting 5 km² research farm to acres for USDA subsidy comparison.
5 km² = 1235.5 ac
A vineyard owner calculating 50 km² wine region as 12,355 acres for international partnership documentation.
50 km² = 12355 ac