Square Miles to Square Kilometres Converter for Canadian Readers
Convert mi² to km² as you type.
Canadian Area Converter - Metric & Imperial UnitsReference for one unit; displayed values may be rounded.
Square Miles
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Square Kilometers
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Method and sourcesq mi to sq km Conversion Formula
To convert square miles to square kilometres, multiply the value by 2.59. A mile is 1.60934 kilometres, and squaring that ratio gives the area factor of 2.59 — handy whenever a US statistic needs to fit a Canadian report.
Square Miles and Square Kilometers Explained
Square Miles (mi²)
A square mile (sq mi, mi²) is the area of a square one mile — 5,280 feet — on each side, equal to 640 acres or 2.59 square kilometres. It is the scale unit of American geography: city land areas run from 22.8 sq mi (Manhattan) to 302.6 sq mi (NYC land), counties span hundreds of sq mi, and Rhode Island's 1,033.8 sq mi of land (about 2,678 sq km) makes it the smallest US state — yet Prince Edward Island, Canada's smallest province, is more than twice that size at 5,686 sq km.
Where it is used: Square miles are used by the US Census Bureau, American national park statistics, US city planning offices, and English-language almanacs for large land areas.
Origin: The statute mile was fixed by an English act of 1593 at 5,280 feet; squaring it later became the standard US large-area unit as federal surveys gridded the West.
Square Kilometers (km²)
A square kilometre (sq km, km²) is the metric unit for large areas: a square 1,000 metres on each side, containing 100 hectares or one million square metres. Canadian geography speaks in it — Toronto spans about 630 sq km, Vancouver 115 sq km, and Prince Edward Island 5,686 sq km — making it the common language for comparing territories at home and abroad.
Where it is used: Square kilometres are the standard for Statistics Canada publications, provincial and municipal datasets, and Canadian scientific literature on land cover and ecology.
Origin: The kilometre entered the French metric system in 1795 as 1,000 metres; its square became the default large-area unit as metrication spread through the 19th and 20th centuries — and Canada adopted it officially in the 1970s.
Square Miles to Square Kilometres Conversion Table
Select a value to use it in the calculator.
| Square Miles (mi²) | Square Kilometers (km²) |
|---|---|
| 0.259 km² | |
| 0.6475 km² | |
| 1.295 km² | |
| 2.59 km² | |
| 3.885 km² | |
| 5.18 km² | |
| 6.475 km² | |
| 7.77 km² | |
| 12.95 km² | |
| 19.425 km² | |
| 25.9 km² | |
| 38.85 km² | |
| 51.8 km² | |
| 64.75 km² | |
| 129.5 km² | |
| 259 km² | |
| 647.5 km² | |
| 1295 km² |
Square Kilometers to Square Miles Conversion Table
| Square Kilometers (km²) | Square Miles (mi²) |
|---|---|
| 1 km² | 0.3861003861 mi² |
| 2 km² | 0.7722007722 mi² |
| 5 km² | 1.9305019305 mi² |
| 10 km² | 3.861003861 mi² |
| 20 km² | 7.722007722 mi² |
| 25 km² | 9.6525096525 mi² |
| 50 km² | 19.305019305 mi² |
| 100 km² | 38.61003861 mi² |
| 200 km² | 77.2200772201 mi² |
| 250 km² | 96.5250965251 mi² |
| 500 km² | 193.0501930502 mi² |
| 1000 km² | 386.1003861004 mi² |
Square Miles to Square Kilometers in Everyday Objects
Common real-world examples that make Square Miles and Square Kilometers easy to picture at a glance.
| Square Miles (mi²) | Square Kilometers (km²) | |
|---|---|---|
| Manhattan land area | 22.8 mi² | 59.052 km² |
| Toronto land area | 61.4 mi² | 159.026 km² |
| Jasper National Park | 1.31 mi² | 3.3929 km² |
| Fundy National Park | 2.6 mi² | 6.734 km² |
| New York City land area | 302.6 mi² | 783.734 km² |
| Prince Edward Island land area | 220.8494208494 mi² | 572 km² |
| Rhode Island land area | 1033.8 mi² | 2677.542 km² |
When You Need Square Miles to Square Kilometers Conversions
Comparing City Footprints
Chicago's 227.7 sq mi converts to 589.74 sq km — nearly the same footprint as the City of Toronto at 630 sq km, a comparison locals can picture instantly.
Wildfire Incident Reporting
US incident commands size fires in square miles, while Canadian agencies report in hectares and square kilometres. A 5 sq mi burn just across the border is 12.95 sq km — about 1,295 hectares — in a national fire situation report.
National Park Statistics
Yellowstone's 3,471 sq mi becomes about 8,990 sq km, letting travel writers rank it against Jasper's 11,000 sq km and Banff's 6,641 sq km when planning a Rockies road trip.
Counties and Rural Municipalities
A 320 sq mi county in the American Midwest converts to 828.8 sq km for grant applications and market studies that request service-area figures in metric — handy when Prairie rural municipalities benchmark against US counterparts.
Related Area Conversions
How to Use
-
1
Enter the Area in sq mi
Type the square-mile figure from the US source — for example, 22.8 sq mi for Manhattan's land area
-
2
See the Square Kilometres
The result appears instantly: 22.8 sq mi = 59.05 sq km, ready to drop into any metric-side document
-
3
Copy or Reverse
Copy the figure into your essay, article, or report, or click Swap to convert a Canadian sq km statistic back into sq mi for US readers
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4
Check the Table
Scan the table for anchors like 5 sq mi = 12.95 sq km and 100 sq mi = 259 sq km while you write
Why Use Be Converter?
Instant Conversion
Get square miles in square kilometres in real time as you type — ideal for checking US news stories or real estate listings on the fly
Precision Guaranteed
Applies the exact 2.59 factor implied by the mile's 1.60934 km definition — no rounded shortcuts, so your figures hold up in reports and term papers
Handy Reference Table
Territory sizes at a glance — 1 sq mi = 2.59 sq km, 50 sq mi = 129.5 sq km, 500 sq mi = 1,295 sq km — for lining up US statistics with Canadian metric data
Swap with One Click
Toggle back to sq km to sq mi instantly when a Canadian figure needs to make sense in an American report or listing
Free & Unlimited
No registration required. Convert every city, county, park, and province figure you research — always free
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All calculations run locally in your browser. Nothing you convert ever leaves your device
Frequently Asked Questions
How many square kilometres are in 1 square mile?
How do I convert 5 square miles to sq km?
What is 100 sq mi in square kilometres?
Is a square mile bigger than a square kilometre?
Why do US geography statistics use square miles?
How many sq km is Manhattan?
How many sq km is 50 square miles?
How do I convert sq mi to sq km precisely?
About Our Square Miles to Square Kilometres Converter
Our free online square miles to square kilometres converter translates US land statistics into the metric units Canadians use every day. American agencies report city footprints, county sizes, national parks, lakes, and wildfire perimeters in square miles, while Statistics Canada, provincial databases, and most Canadian newsrooms work in square kilometres. Whether you're a student, journalist, or analyst comparing cross-border data, this tool applies the exact factor of 2.59 sq km per sq mi to every figure you enter.
Expert Tips for Converting sq mi to sq km
The 2.59 factor is a squared length ratio: 1.60934 km per mile, squared, gives 2.59 — so distances convert by 1.60934 while areas convert by 2.59.
Memorize a few cross-border anchors: Manhattan 22.8 sq mi = 59.05 sq km, Chicago 227.7 sq mi = 589.74 sq km, and Toronto's roughly 630 sq km works out to about 243 sq mi.
For parks, convert before comparing: Yellowstone at 3,471 sq mi is about 8,990 sq km — smaller than Jasper National Park (roughly 11,000 sq km) but larger than Banff (6,641 sq km).
Mental shortcut: multiply sq mi by 2.6 — PEI at 2,195 sq mi gives about 5,707 sq km against the exact 5,686, close enough for conversation.
Land vs total area matters: US figures often exclude water (NYC land 302.6 sq mi) while Statistics Canada city totals usually include it; convert the same basis on both sides.
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