Square Kilometer to Square Mile Converter
免费面积转换器, 即时换算平方英尺、英亩、公顷、平方米和平方公里
1Square Kilometer=0.3861021586Square Mile
1 Square Mile = 2.58998811 Square Kilometer
Square Kilometer
- Symbol
- km²
- System
- Metric/Imperial
- Dimension
- Various
Square Mile
- Symbol
- mi²
- System
- Metric/Imperial
- Dimension
- Various
Quick Reference Table
| Square Kilometer | Square Mile | Square Mile | Square Kilometer |
|---|---|---|---|
| 1 | 0.3861021586 | 1 | 2.58998811 |
| 2 | 0.7722043172 | 2 | 5.17997622 |
| 3 | 1.1583064758 | 3 | 7.76996433 |
| 5 | 1.930510793 | 5 | 12.94994055 |
| 10 | 3.8610215859 | 10 | 25.8998811 |
| 25 | 9.6525539648 | 25 | 64.74970275 |
| 50 | 19.3051079296 | 50 | 129.4994055 |
| 100 | 38.6102158593 | 100 | 258.998811 |
| 500 | 193.0510792963 | 500 | 1294.994055 |
| 1000 | 386.1021585925 | 1000 | 2589.98811 |
Conversion Formula
Square Mile = Square Kilometer × 0.3861021586
Square Kilometer = Square Mile × 2.58998811
Factors are from BIPM SI brochure and NIST SP 811, stored unrounded and computed via a base unit. Reverse factor is 1 ÷ 0.3861021586.
How to convert Square Kilometer to Square Mile
Multiply the value in square kilometer by 0.3861021586 to get square mile. For example, 5 Square Kilometer = 1.930510793 Square Mile. All results in the 面积 converter update instantly as you type, so you can see every unit at once without manual math.
Common mistakes
Do not round the factor to 0.38 too early — keep full precision until the final display. For 面积, always verify critical calculations (medicine, engineering) with a second source.
FAQ
- How many Square Mile in 1 Square Kilometer?
- 1 Square Kilometer = 0.3861021586 Square Mile.
- How many Square Kilometer in 1 Square Mile?
- 1 Square Mile = 2.58998811 Square Kilometer.
- What is the source?
- BIPM/NIST via OmniConverter base-unit engine. Source table and formula above are exact.
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