How many square feet are in one square kilometer?

One square kilometer equals exactly 10,763,910.417 square feet (10,763,910 + 5/12). This is derived from the exact definition: 1 km = 3,280.839895 feet, so 1 km² = 3,280.839895² ft².

How many square kilometers are in one square foot?

One square foot equals approximately 0.000000092903 square kilometers (9.2903 × 10⁻⁸ km²).

Is this converter accurate for large areas like countries?

Yes. The conversion factor used is the internationally agreed exact definition, so it is accurate for areas of any size, from a room to an entire country.

What is the difference between km² and km?

km is a linear unit of length. km² (square kilometer) is a unit of area equal to a square with sides of 1 km. Always square the linear factor when converting area units.

Does this tool work offline?

All calculations run in your browser using JavaScript. Once the page has loaded, no internet connection is needed.

Square Kilometers to Square Feet Converter

Name: Square Kilometers to Square Feet Converter
Availability: InStock
Author: Nham Vu

Instantly convert square kilometers to square feet (and back) with a precise, client-side area unit converter.

Square Kilometers to Square Feet

Square Kilometers (km²) Square Feet (ft²)

Square Feet to Square Kilometers

Square Feet (ft²) Square Kilometers (km²)

Conversion Formula

ft² = km² × 10,763,910.417

km² = ft² ÷ 10,763,910.417

Common Conversions

km²	ft²

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Summary

Instantly convert square kilometers to square feet (and back) with a precise, client-side area unit converter.

How it works

Enter a value in the Square Kilometers field to see the equivalent in square feet.
Or enter a value in the Square Feet field to convert back to square kilometers.
The tool applies the exact factor: 1 km² = 10,763,910.417 ft².
Results update instantly as you type — no button press needed.
Use the Copy button to copy the result to your clipboard.
Click Swap to exchange the two values and reverse the direction.

Use cases

Convert land area measurements between metric and US customary units.
Check the size of a country or city listed in km² against ft² equivalents.
Convert real estate or property area figures for international clients.
Prepare engineering or GIS reports that require dual-unit area values.
Cross-check satellite or map data that reports area in km² vs. ft².
Homework and academic unit-conversion exercises.

Frequently Asked Questions

Last updated: 2026-06-09 · Reviewed by Nham Vu