---
title: "20 acre to km² = 0.080937 km²"
description: "20 acres is 0.080937 square kilometers. The arithmetic, a table of nearby values, and a converter for any other number."
url: https://atoneplace.net/convert/20-acres-to-square-km/
site: "At One Place"
---

# 20 acre to km²

**20 acres in square kilometers: 20 acre = 0.080937 km²**

km² = acre × 0.004046856422

20 acres is 0.080937 square kilometers. To get there, multiply by 0.004046856422.

## Values either side

*Acres near 20, converted to square kilometers.*

| Acres | Square kilometers |
| --- | --- |
| 16 acre | 0.06475 |
| 17 acre | 0.068797 |
| 18 acre | 0.072843 |
| 19 acre | 0.07689 |
| 20 acre ← | 0.080937 |
| 21 acre | 0.084984 |
| 22 acre | 0.089031 |
| 23 acre | 0.093078 |
| 24 acre | 0.097125 |

## How the conversion works

The relationship is km² = acre × 0.004046856422. Both units measure area, so the conversion is a fixed factor that never changes.

## Common questions

### What is 20 acre in square kilometers?

20 acre is 0.080937 km².

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

Multiply by 0.004046856422.

## Related pages

- [Acres to square kilometers](https://atoneplace.net/convert/acres-to-square-km/)
- [20 km² to acre](https://atoneplace.net/convert/20-square-km-to-acres/)
- [16 acre to km²](https://atoneplace.net/convert/16-acres-to-square-km/)
- [17 acre to km²](https://atoneplace.net/convert/17-acres-to-square-km/)
- [18 acre to km²](https://atoneplace.net/convert/18-acres-to-square-km/)
- [19 acre to km²](https://atoneplace.net/convert/19-acres-to-square-km/)
- [21 acre to km²](https://atoneplace.net/convert/21-acres-to-square-km/)
- [22 acre to km²](https://atoneplace.net/convert/22-acres-to-square-km/)
- [23 acre to km²](https://atoneplace.net/convert/23-acres-to-square-km/)
- [24 acre to km²](https://atoneplace.net/convert/24-acres-to-square-km/)

## 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/)