---
title: "Square kilometers to Acres — km² to acre converter"
description: "1 square kilometer = 247.1054 acres. Convert square kilometers to acres with a full conversion table, the exact formula, and a calculator for any value."
url: https://atoneplace.net/convert/square-km-to-acres/
site: "At One Place"
---

# Square kilometers to acres

**1 square kilometer in acres: 1 km² = 247.1054 acre**

acre = km² × 247.1053815

To convert square kilometers to acres, multiply by 247.1053815. The table below gives the values people look up most often, and the converter works for any number.

## Square kilometers to acres table

*Common square kilometer values converted to acres.*

| Square kilometers | Acres |
| --- | --- |
| 1 km² | 247.1054 |
| 2 km² | 494.2108 |
| 3 km² | 741.3161 |
| 4 km² | 988.4215 |
| 5 km² | 1,235.5269 |
| 10 km² | 2,471.0538 |
| 15 km² | 3,706.5807 |
| 20 km² | 4,942.1076 |
| 25 km² | 6,177.6345 |
| 30 km² | 7,413.1614 |
| 40 km² | 9,884.2153 |
| 50 km² | 12,355.269 |
| 75 km² | 18,532.904 |
| 100 km² | 24,710.538 |
| 250 km² | 61,776.345 |
| 500 km² | 123,552.69 |
| 1,000 km² | 247,105.38 |

## How the conversion works

The relationship is acre = km² × 247.1053815. Both units measure area, so the conversion is a fixed factor that never changes.

## Common questions

### How many acres are in one square kilometer?

One square kilometer equals 247.1054 acres. acre = km² × 247.1053815.

### How do you convert square kilometers to acres?

Use acre = km² × 247.1053815. So 10 km² is 2,471.0538 acre.

### How many square kilometers are in one acre?

One acre equals 0.0040469 square kilometers, which is the reverse of the conversion above.

## Related pages

- [Acres to Square kilometers](https://atoneplace.net/convert/acres-to-square-km/)
- [Square kilometers to Square meters](https://atoneplace.net/convert/square-km-to-square-meters/)
- [Square kilometers to Hectares](https://atoneplace.net/convert/square-km-to-hectares/)
- [Square kilometers to Square feet](https://atoneplace.net/convert/square-km-to-square-feet/)
- [Square kilometers to Square miles](https://atoneplace.net/convert/square-km-to-square-miles/)

## Sources

- Guide for the Use of the International System of Units (SP 811) — NIST (https://www.nist.gov/pml/special-publication-811) [Public domain (US Government)]
- The International System of Units (SI Brochure) — Bureau International des Poids et Mesures (https://www.bipm.org/en/publications/si-brochure)
- Calculated on this page — At One Place (/about/)