Convert square kilometers to acres (survey)

Explanation

From this page you can convert square kilometers to acres (survey) (or km² to ac) simply, by using the application above.

In case you are wondering, to convert from square kilometers to acres (survey) you need to multiply by 247.1044. This factor is calculated using the respective definitions of the two units you can find below.

Formula

1 km²≈247.1044 ac

square kilometerskm²

dimension	area
system	International system of units (SI)
symbol	km², sq km

The square kilometer (km², sq km) is a derived area unit in the International System of Units.

Definition of the square kilometer

One square kilometer is a superficial area equivalent to that of a square whose sides are one kilometer long.

Equivalences

One square kilometer is equivalent to:

Some Facts

The surface of the Earth is roughly 510000000 square kilometers.

SI Area Units

square millimeter	mm²	0.000001
square centimeter	cm²	0.0001
square meter	m²	1
square kilometer	km²	1000000

The International System of Units

The International System of Units or SI (from the French Système international (d'unité)), also called metric system in the U.S., is a coherent system of units that was published 1960. It is official in nearly every country.

The General Conference on Weights and Measures (Conférence générale des poids et mesures) is tasked with overseeing the SI.

Related Conversions

acres (survey)ac

dimension	area
system	U.S. customary units (USCS)
symbol	ac

The survey acre (ac) is a unit of area in the U.S. customary units.

Definition

A survey acre is an area equal to that of a one survey furlong by one survey chain rectangle.

Value

One survey acre is 160 square survey rods.

NIST Handbook 44 Specifications: Appendix C

Equivalences

One survey acre is equivalent to:

U.S. Survey area units

square foot	sq ft
square rod	sq rd	272.25 square feet
square chain	sq ch	16 square rods
acre	ac	10 square chains
section	-	640 acres
township	twp	36 sections