1 km² = 1000000 m² (square kilometer → square meter)
1 km² = 1000000 m²
1 square kilometer equals 1000000 square meters. To convert square kilometers to square meters, multiply the square kilometer value by 1000000. For quick reference: 1 km² = 1000000 m², 5 km² = 5000000 m², 10 km² = 10000000 m², 100 km² = 100000000 m².
Square meters = Square kilometers × 1000000Square kilometers to square meters multiplies by 1,000,000. A 2.5 km² nature reserve is 2,500,000 m². The conversion is exact but the numbers get unwieldy fast, which is why intermediate land areas are usually quoted in hectares instead (1 km² = 100 ha). Go all the way down to m² only when a calculation demands it — density figures, for instance, are usually per km², not per m².
Start with your value in square kilometers.
Multiply the square kilometer value by 1000000. This is the exact conversion factor from square kilometers to square meters.
The product is your value in square meters. For example, 5 km² × 1000000 = 5000000 m².
The exact factor from square kilometers to square meters is 1000000.
Square meters = Square kilometers × 1000000
Fifty common reference values, hand-picked for skim utility. Use the calculator above for any value not listed.
| Square kilometers (km²) | Square meters (m²) |
|---|---|
| 0.1 km² | 100000 m² |
| 0.25 km² | 250000 m² |
| 0.5 km² | 500000 m² |
| 1 km² | 1000000 m² |
| 2 km² | 2000000 m² |
| 3 km² | 3000000 m² |
| 4 km² | 4000000 m² |
| 5 km² | 5000000 m² |
| 6 km² | 6000000 m² |
| 7 km² | 7000000 m² |
| 8 km² | 8000000 m² |
| 9 km² | 9000000 m² |
| 10 km² | 10000000 m² |
| 12 km² | 12000000 m² |
| 15 km² | 15000000 m² |
| 20 km² | 20000000 m² |
| 25 km² | 25000000 m² |
| 30 km² | 30000000 m² |
| 40 km² | 40000000 m² |
| 50 km² | 50000000 m² |
| 60 km² | 60000000 m² |
| 70 km² | 70000000 m² |
| 75 km² | 75000000 m² |
| 80 km² | 80000000 m² |
| 90 km² | 90000000 m² |
| 100 km² | 100000000 m² |
| 120 km² | 120000000 m² |
| 150 km² | 150000000 m² |
| 200 km² | 200000000 m² |
| 250 km² | 250000000 m² |
| 300 km² | 300000000 m² |
| 400 km² | 400000000 m² |
| 500 km² | 500000000 m² |
| 600 km² | 600000000 m² |
| 750 km² | 750000000 m² |
| 800 km² | 800000000 m² |
| 1000 km² | 1000000000 m² |
| 1200 km² | 1200000000 m² |
| 1500 km² | 1500000000 m² |
| 2000 km² | 2000000000 m² |
| 2500 km² | 2500000000 m² |
| 3000 km² | 3000000000 m² |
| 4000 km² | 4000000000 m² |
| 5000 km² | 5000000000 m² |
| 7500 km² | 7500000000 m² |
| 10000 km² | 10000000000 m² |
| 20000 km² | 20000000000 m² |
| 50000 km² | 50000000000 m² |
| 100000 km² | 100000000000 m² |
| 1000000 km² | 1000000000000 m² |
Manhattan is about 59 km². Lake Geneva is about 580 km². In square meters, that gives you: 1 km² = 1000000 m², 10 km² = 10000000 m², 100 km² = 100000000 m².
The square kilometer equals one million square meters — the standard unit for city, region, and country areas in metric countries. Manhattan is about 59 km²; Istanbul is about 5,461 km²; Turkey is about 783,562 km². One km² equals exactly 100 hectares or about 0.386 square miles.
The square meter is the SI unit of area — the area of a square one meter on each side. It's the standard for apartment and house listings in nearly every metric country, for material quantities (flooring, paint coverage), and for all scientific work. A typical parking space is about 12 m²; a singles tennis court is about 195 m².