Acres to Square Kilometers Conversion

Acres to square kilometers conversion chart shows the most common values for your quick reference. Also, you may use the acre to square kilometer converter below to convert any other values.

1 Acre = 0.00404685642 Square Kilometers

Acre is used in imperial, us customary systems for measuring the land, agriculture and forestry. There are different types of acres used as an area unit globally, the international and survey acres are the most common ones but the difference between them is so small (0.016 square meters). The abbreviation is "ac".

Square kilometer is a metric system unit, used mostly in measuring land. The abbreviation is km² or "sq km". It equals to 100 hectares or 1 million sq meters.

For other area unit conversions, please go to Area Conversion

Converter

Enter a value that you want to convert into sq kilometers and click on the "convert" button.

Conversion Table

Acre	Sq Kilometer	Acre	Sq Kilometer	Acre	Sq Kilometer	Acre	Sq Kilometer
1	0.004046856	26	0.105218267	51	0.206389677	76	0.307561088
2	0.008093713	27	0.109265123	52	0.210436534	77	0.311607944
3	0.012140569	28	0.11331198	53	0.21448339	78	0.315654801
4	0.016187426	29	0.117358836	54	0.218530247	79	0.319701657
5	0.020234282	30	0.121405693	55	0.222577103	80	0.323748514
6	0.024281139	31	0.125452549	56	0.22662396	81	0.32779537
7	0.028327995	32	0.129499405	57	0.230670816	82	0.331842226
8	0.032374851	33	0.133546262	58	0.234717672	83	0.335889083
9	0.036421708	34	0.137593118	59	0.238764529	84	0.339935939
10	0.040468564	35	0.141639975	60	0.242811385	85	0.343982796
11	0.044515421	36	0.145686831	61	0.246858242	86	0.348029652
12	0.048562277	37	0.149733688	62	0.250905098	87	0.352076509
13	0.052609133	38	0.153780544	63	0.254951954	88	0.356123365
14	0.05665599	39	0.1578274	64	0.258998811	89	0.360170221
15	0.060702846	40	0.161874257	65	0.263045667	90	0.364217078
16	0.064749703	41	0.165921113	66	0.267092524	100	0.404685642
17	0.068796559	42	0.16996797	67	0.27113938	125	0.505857053
18	0.072843416	43	0.174014826	68	0.275186237	150	0.607028463
19	0.076890272	44	0.178061682	69	0.279233093	175	0.708199874
20	0.080937128	45	0.182108539	70	0.283279949	200	0.809371284
21	0.084983985	46	0.186155395	71	0.287326806	250	1.011714105
22	0.089030841	47	0.190202252	72	0.291373662	300	1.214056926
23	0.093077698	48	0.194249108	73	0.295420519	500	2.02342821
24	0.097124554	49	0.198295965	74	0.299467375	750	3.035142315
25	0.101171411	50	0.202342821	75	0.303514232	1000	4.04685642

Acres To Square Kilometers Conversion

How many sq kilometers in an acre ?

Conversion Table