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Square kilometer to Acre Converter

Square kilometer to Acre Converter

1 km² = 247.105381 ac — convert instantly with formula and table.

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Type a value above and it converts instantly — no button to press, no page reload, and the math runs entirely in your browser.

Quick answer: one square kilometer equals 247.1054 acres. So to convert square kilometers to acres, multiply by 247.10538147.

How to convert square kilometers to acres

acres = square kilometers × 247.1053814672

The square kilometer (a million square meters) measures cities, lakes and countries — about 0.386 square miles.

The acre — historically the area a yoke of oxen could plow in one day — equals 43,560 square feet and remains the standard US unit for land parcels.

Square kilometer to Acre conversion table

Square kilometer (km²)Acre (ac)
0.01 km²2.4711 ac
0.1 km²24.7105 ac
0.25 km²61.7763 ac
0.4 km²98.8422 ac
0.75 km²185.329 ac
1.25 km²308.8817 ac
1.75 km²432.4344 ac
2.5 km²617.7635 ac
3.5 km²864.8688 ac
4.5 km²1,111.97 ac
6 km²1,482.63 ac
8 km²1,976.84 ac
10 km²2,471.05 ac
12 km²2,965.26 ac
14 km²3,459.48 ac
16 km²3,953.69 ac
18 km²4,447.9 ac
20 km²4,942.11 ac
24 km²5,930.53 ac
26 km²6,424.74 ac
30 km²7,413.16 ac
35 km²8,648.69 ac
45 km²11,119.74 ac
55 km²13,590.8 ac
65 km²16,061.85 ac
75 km²18,532.9 ac
85 km²21,003.96 ac
95 km²23,475.01 ac
110 km²27,181.59 ac
125 km²30,888.17 ac
175 km²43,243.44 ac
250 km²61,776.35 ac
350 km²86,486.88 ac
450 km²111,197.42 ac
600 km²148,263.23 ac
750 km²185,329.04 ac
900 km²222,394.84 ac
1,500 km²370,658.07 ac
2,500 km²617,763.45 ac
10,000 km²2,471,053.81 ac

Need the opposite direction? Use the Acre to Square kilometer converter, or read our complete guide to area conversions for every formula in one place.

Frequently asked questions

How many acres are in one square kilometer?

One square kilometer equals 247.1054 acres. Multiply any square kilometer value by 247.10538147 to get acres.

What is 10 square kilometers in acres?

10 square kilometers equal 2,471.05 acres (10 × 247.105381).

Is the square kilometer to acre conversion exact?

The conversion factor used here (247.1053814672) is based on the internationally agreed definitions of both units, so results are exact up to rounding of the final decimal places.

Is my data stored when I use this converter?

No. The conversion runs entirely in your browser with JavaScript — nothing you type is sent to a server, logged or stored.