Unit Convertio

Trusted unit conversions based on SI and NIST scientific standards

Acre to Square Kilometer

Convert Acre [ac] to Square Kilometer [km²] and vice versa.

Conversion Formula

Example: 1 ac = 0.00404686 km²

The conversion uses the following relationship: Acre values are converted to the base unit (Square Meter), then converted to Square Kilometer.

Related Area Conversions

ac to m²km² to m²
ac to cm²km² to cm²
ac to mm²km² to mm²
ac to hakm² to ha
ac to mi²km² to mi²
ac to yd²km² to yd²

Quick Reference Table

ackm²
10.00404686
50.0202343
100.0404686
250.101171
500.202343
1000.404686
2501.01171
5002.02343
10004.04686
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