How do I convert km² to ft²?

Use the formula shown above or enter a value to see km² converted to ft² instantly.

What is the formula for km² to ft²?

The converter calculates ft² by applying the category-specific conversion factor for Area.

When should I use km² vs ft²?

km² and ft² are both part of the Area category; pick the unit that matches your measurement context (e.g., scale, region, or industry standard).

Area Converter & Surface Reference

Convert km² to ft²

Use the live converter below to translate between Square Kilometer (km²) and Square Foot (ft²). Scroll further for quick examples, formula tips, and related units.

Formula insight: Most unit conversions use a simple multiplication or division by a conversion factor. The calculator shows the exact formula used.

Convert

km² → ft²

Square Kilometer

km²

Square Foot

10,763,910.4167

ft²

Rounded result (4 decimals max)

Formula

1 km² = 10,763,910.4167 ft²

Conversion sourcesTap or click to view references

The International System of Units (SI) — NIST Special Publication 330
National Institute of Standards and Technology (NIST). The SI Brochure (SP 330) is the definitive English edition of the BIPM SI tables. NIST’s edition lists the official constants and conversion factors tying inch-pound units to SI, which SwapUnits applies for length, mass, temperature, pressure, volume, and related conversions. See /standards/nist-si-tenfold for the complete decimal multiple/submultiple table. View source · View SI table

Results update as you type. Swap the direction to convert back from ft² to km².

Back to main converter

km² to ft² quick table

Multiply any row by the same factor to scale results. Use the converter above to enter exact values with your own units.

Square Kilometer (km²)	Square Foot (ft²)
0.25 km²	2,690,977.6042 ft²
0.5 km²	5,381,955.2084 ft²
1 km²	10,763,910.4167 ft²
2 km²	21,527,820.8334 ft²
5 km²	53,819,552.0835 ft²
10 km²	107,639,104.1671 ft²
25 km²	269,097,760.4177 ft²
100 km²	1.07639×10^9 ft²