Koverts/Area/km² → mi²
⬛ Area Converter

Sq. Kilometer (km²) to Sq. Mile (mi²)

1 km² = 0.3861 mi² · Free instant converter, no signup required.

Direct Answer

1 km² = 0.3861 mi²

Formula: mi² = km² × 0.3861. This page supports instant conversion, reference table checks, and related unit links.

About this conversion

This Koverts page converts Sq. Kilometer (km²) to Sq. Mile (mi²). It uses the same rules as our Area Converter — reliable Area conversions, free and instant.

Sq. Kilometer (km²) and Sq. Mile (mi²) are units used in Area Converter. Enter a value above to convert Sq. Kilometer (km²) into Sq. Mile (mi²) using the standard relationship for this category.

Sq. Mile (mi²) is the target unit on this page. Results come from Sq. Kilometer (km²) using the same rules as the calculator and the reference table below.

Typical uses

  • Compare Sq. Kilometer (km²) and Sq. Mile (mi²) for everyday estimates and planning
  • Use with homework, DIY projects, and hobby measurements
  • Read international labels, manuals, and product specs with less guesswork
  • Educational reference only — verify medical, legal, or engineering use with authoritative sources
Formulami² = km² × 0.3861

Common reference values

  • 1 km² = 0.3861 mi²
  • 10 km² = 3.861004 mi²
  • 100 km² = 38.610039 mi²

Tip: 1 km² equals 0.3861 mi². Multiply your amount by 0.3861 to convert from km² to mi².

Did you know? Koverts keeps conversion math transparent: you see the factor, the table, and the same rules everywhere on the page.

Educational reference - always verify critical measurements (medical, engineering, legal) with primary sources.

⬛ Area Converter← Area

Result

0.3861mi²

1 km² = 0.3861 mi²

Popular conversions

// sq_kilometer Conversion table sq_mile

Sq. Kilometer (km²) (km²)Sq. Mile (mi²) (mi²)
1 km²0.3861 mi²
2 km²0.772201 mi²
5 km²1.930502 mi²
10 km²3.861004 mi²
20 km²7.722008 mi²
25 km²9.65251 mi²
50 km²19.305019 mi²
100 km²38.610039 mi²
250 km²96.525097 mi²
500 km²193.05019 mi²
1000 km²386.10039 mi²

How to convert

Sq. Kilometer (km²) → Sq. Mile (mi²)

To convert from Sq. Kilometer (km²) (km²) to Sq. Mile (mi²) (mi²)，multiply your value by 0.3861.

mi² = km² × 0.3861

For example，10 km² = 3.861004 mi².

// Frequently Asked Questions

How accurate is this converter?▼
Koverts applies standard conversion relationships for Area. Always double-check results that affect health, safety, contracts, or compliance.
Can I convert other units in this category?▼
Yes. Open the category page or change the “from” and “to” units in the converter to explore every supported pair.
What is 1 km² in mi²?▼
1 km² = 0.3861 mi².
How is the conversion calculated?▼
mi² = km² × 0.3861.
Can I convert other values?▼
Yes. Use the converter box above to enter any value and get instant results.

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ha → Acre

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Acre → m²

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m² → Acre

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km² → m²

Sq. Meter (m²)

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