# Square Miles to Square Kilometers

## Square Miles to Square Kilometers conversion calculator

Square Kilometers to Square Miles (Swap units)

1mi² = 2.58999km²

Accuracy

Note: You can increase or decrease the accuracy of this answer by selecting the number of significant figures required from the options above the result.

### Square Miles to Square Kilometers conversion formula

Square Kilometers = Square Miles * 2.58998917

### Square Miles to Square Kilometers calculation

Square Kilometers = Square Miles * 2.58998917

Square Kilometers = 1 * 2.5899891738453

Square Kilometers = 2.58999

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

To convert square miles to square kilometers, you need to know that 1 square mile is equal to approximately 2.59 square kilometers. This conversion factor is derived from the fact that 1 mile is equal to 1.60934 kilometers, so when you square this value to convert area, you get 1 mile² equal to 2.59 km².

To perform the conversion, you simply need to multiply the number of square miles by 2.59 to obtain the equivalent area in square kilometers. For example, if you have 10 square miles, you would multiply 10 by 2.59 to get 25.9 square kilometers.

## What are Square Miles?

Square miles and hectares are both units of area measurement, but they belong to different systems of measurement. A square mile is a unit of area commonly used in the United States and the United Kingdom. It is equivalent to the area of a square with sides that are one mile long. One square mile is equal to 640 acres or approximately 2.59 square kilometers. Square miles are often used to measure large areas of land, such as states or countries.

Square miles and hectares are both important units of measurement for determining the size of land areas, with square miles being more common in the US and UK, while hectares are widely used in the metric system.

## What are Square Kilometers?

Square kilometers are units of area measurement in the metric system. A square kilometer is a unit of area equal to 1,000,000 square meters, or the area of a square with sides that are each 1 kilometer long. It is commonly used to measure large areas of land, such as countries or continents. For example, the total land area of Australia is approximately 7.7 million square kilometers.

## Some common Square Miles to Square Kilometers conversions

3 miles in km = 7.76996752km²

## Square Miles to Square Kilometers table

Starting value
Increment
Accuracy
Square Miles
Square Kilometers
0mi²
0.00000km²
1mi²
2.58999km²
2mi²
5.17998km²
3mi²
7.76997km²
4mi²
10.35996km²
5mi²
12.94995km²
6mi²
15.53994km²
7mi²
18.12992km²
8mi²
20.71991km²
9mi²
23.30990km²
10mi²
25.89989km²
11mi²
28.48988km²
12mi²
31.07987km²
13mi²
33.66986km²
14mi²
36.25985km²
15mi²
38.84984km²
16mi²
41.43983km²
17mi²
44.02982km²
18mi²
46.61981km²
19mi²
49.20979km²
Square Miles
Square Kilometers
20mi²
51.79978km²
21mi²
54.38977km²
22mi²
56.97976km²
23mi²
59.56975km²
24mi²
62.15974km²
25mi²
64.74973km²
26mi²
67.33972km²
27mi²
69.92971km²
28mi²
72.51970km²
29mi²
75.10969km²
30mi²
77.69968km²
31mi²
80.28966km²
32mi²
82.87965km²
33mi²
85.46964km²
34mi²
88.05963km²
35mi²
90.64962km²
36mi²
93.23961km²
37mi²
95.82960km²
38mi²
98.41959km²
39mi²
101.00958km²
Square Miles
Square Kilometers
40mi²
103.59957km²
41mi²
106.18956km²
42mi²
108.77955km²
43mi²
111.36953km²
44mi²
113.95952km²
45mi²
116.54951km²
46mi²
119.13950km²
47mi²
121.72949km²
48mi²
124.31948km²
49mi²
126.90947km²
50mi²
129.49946km²
51mi²
132.08945km²
52mi²
134.67944km²
53mi²
137.26943km²
54mi²
139.85942km²
55mi²
142.44940km²
56mi²
145.03939km²
57mi²
147.62938km²
58mi²
150.21937km²
59mi²
152.80936km²
Square Miles
Square Kilometers
60mi²
155.39935km²
61mi²
157.98934km²
62mi²
160.57933km²
63mi²
163.16932km²
64mi²
165.75931km²
65mi²
168.34930km²
66mi²
170.93929km²
67mi²
173.52927km²
68mi²
176.11926km²
69mi²
178.70925km²
70mi²
181.29924km²
71mi²
183.88923km²
72mi²
186.47922km²
73mi²
189.06921km²
74mi²
191.65920km²
75mi²
194.24919km²
76mi²
196.83918km²
77mi²
199.42917km²
78mi²
202.01916km²
79mi²
204.60914km²