Square Kilometer to Square Meter Converter
Convert Square Kilometer (km²) to Square Meter (m²) instantly. 1 km² = 1,000,000 m².
Area Converter
20 units available
1 km² = 1,000,000 m²
Formula:
m² = km² × 1,000,000With your value: 1 km² = 1,000,000 m²
How big is that?
Everyday references on a logarithmic scale, all expressed in square kilometer so you can sanity-check the result.
Other Square Kilometer to Square Meter conversions
Square Kilometer to Square Meter Conversion Table
| Square Kilometer (km²) | Square Meter (m²) |
|---|---|
| 0.5 | 500,000 |
| 1 | 1,000,000 |
| 2 | 2,000,000 |
| 5 | 5,000,000 |
| 10 | 10,000,000 |
| 15 | 15,000,000 |
| 20 | 20,000,000 |
| 25 | 25,000,000 |
| 50 | 50,000,000 |
| 100 | 100,000,000 |
| 250 | 250,000,000 |
| 500 | 500,000,000 |
| 1000 | 1,000,000,000 |
Square Meter to Square Kilometer Conversion Table
| Square Meter (m²) | Square Kilometer (km²) |
|---|---|
| 0.5 | 5.000000e-7 |
| 1 | 1.000000e-6 |
| 2 | 2.000000e-6 |
| 5 | 5.000000e-6 |
| 10 | 1.000000e-5 |
| 15 | 1.500000e-5 |
| 20 | 2.000000e-5 |
| 25 | 2.500000e-5 |
| 50 | 5.000000e-5 |
| 100 | 0.0001 |
| 250 | 0.00025 |
| 500 | 0.0005 |
| 1000 | 0.001 |
Where these values come from
Every factor on this page is traced to the document that defines it. See the full provenance dataset or our methodology.
Square Kilometer (km²)
Area
Derived from the square metre via the length definitions above.
Source: NIST Special Publication 811, Guide for the Use of the International System of Units
National Institute of Standards and Technology (US) · Reviewed 2026-07-01
Square Meter (m²)
Area
Derived from the square metre via the length definitions above.
Source: NIST Special Publication 811, Guide for the Use of the International System of Units
National Institute of Standards and Technology (US) · Reviewed 2026-07-01
How to Convert Square Kilometer to Square Meter
To convert from Square Kilometer (km²) to Square Meter (m²), multiply the value by 1,000,000.
Formula: m² = km² × 1,000,000
Reverse: km² = m² × 0.000001
Step-by-Step Example
- Start with your value in Square Kilometer. For example: 5 km²
- Multiply by the conversion factor: 5 x 1,000,000
- The result is: 5,000,000 m²
About Square Kilometer
The square kilometer (km²) is a unit of area. One square kilometer equals 1.000000 × 10^+6 square metres. UnitConvertLab converts it against every other area unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.
Common uses: area calculations, engineering and science, education.
About Square Meter
The square meter is the SI unit of area. It is widely used for measuring floor space, land, and surfaces.
Common uses: real estate, construction, painting.
Frequently Asked Questions
How many Square Meter are in 1 Square Kilometer?
There are exactly 1,000,000 Square Meter in 1 Square Kilometer. This means the conversion factor from Square Kilometer to Square Meter is 1,000,000.
What is the formula to convert Square Kilometer to Square Meter?
The formula to convert Square Kilometer to Square Meter is: m² = km² × 1,000,000. For example, to convert 10 Square Kilometer to Square Meter, you would multiply 10 by 1,000,000.
What is a Square Kilometer?
The square kilometer (km²) is a unit of area. One square kilometer equals 1.000000 × 10^+6 square metres. UnitConvertLab converts it against every other area unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.
What is a Square Meter?
The square meter is the SI unit of area. It is widely used for measuring floor space, land, and surfaces.
What are the common uses of Square Kilometer?
The Square Kilometer is commonly used in area calculations, engineering and science, education.
Related Area Conversions
Cite this page
UnitConvertLab. (2026). Square Kilometer to Square Meter converter. UnitConvertLab. Retrieved from https://unitconvertlab.com/convert/sqkilometer-to-sqmeter