Mass application rate.
Pounds per Square Kilometer to Milligrams per Square foot Converter — lb/km2 to mg/ft2
Convert Pound per Square Kilometer (lb/km2) to Milligram per Square foot (mg/ft2) using the exact conversion factor (1 pound per square kilometer = 0.0421401101 milligram per square foot). See the formula, worked examples, and conversion table.
Pounds per Square Kilometer to Milligrams per Square foot converter
Converter
Agriculture Converter
Convert acres, hectares, yield, seed, fertilizer, irrigation, and application-rate units.
Context values
Some unit families need one extra value for a physically accurate result.
Mass application rate.
Result = input x 4.5359237e-7 / 1.07639104e-5.
Mass Application Rate units are compatible.
Reserved above the conversion cards and below the converter.
About Converting Pounds per Square Kilometer to Milligrams per Square foot
Pound per Square Kilometer and Milligram per Square foot both measure a farming-related quantity — a land area or an application/yield rate per unit area — used to report crop yields, calculate how much fertilizer or seed a field needs, and plan irrigation. Both are mass application rate units.
Formula
milligrams per square foot = pounds per square kilometer × 0.0421401100938
This factor comes from each unit's defined relationship to the category's base unit: 1 pound per square kilometer equals 4.535924e-7 base units, and 1 milligram per square foot equals 0.0000107639104167 base units, so dividing one by the other gives the direct pound per square kilometer-to-milligram per square foot factor of 0.0421401100938.
Simple example
1 lb/km2 × 0.04214011009 = 0.0421401101 mg/ft2
1 pound per square kilometer = 0.0421401101 milligrams per square foot.
Real-world example
100 lb/km2 × 0.04214011009 = 4.214011009 mg/ft2
100 pounds per square kilometer = 4.214011009 milligrams per square foot.
Conversion table
| Pound per Square Kilometer (lb/km2) | Milligram per Square foot (mg/ft2) |
|---|---|
| 1 lb/km2 | 0.0421401101 mg/ft2 |
| 5 lb/km2 | 0.2107005505 mg/ft2 |
| 10 lb/km2 | 0.4214011009 mg/ft2 |
| 50 lb/km2 | 2.107005505 mg/ft2 |
| 100 lb/km2 | 4.214011009 mg/ft2 |
| 500 lb/km2 | 21.07005505 mg/ft2 |
Reverse conversion: Milligram per Square foot to Pound per Square Kilometer
0.0421401101 mg/ft2 × 23.7303604 = 1 lb/km2
0.0421401101 milligrams per square foot = 1 pounds per square kilometer.
pounds per square kilometer = milligrams per square foot × 23.7303604042
For a page dedicated to this direction, see Milligram per Square foot to Pound per Square Kilometer.
Understanding the Pound per Square Kilometer (lb/km2)
Mass application rate.
Understanding the Milligram per Square foot (mg/ft2)
Mass application rate.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many milligrams per square foot are in 1 pound per square kilometer?
1 pound per square kilometer equals 0.0421401101 milligrams per square foot, using the exact defined conversion factor rather than an estimate.
How do I convert pound per square kilometer to milligram per square foot?
Multiply the pound per square kilometer value by 0.04214011009. The converter above does this instantly to whatever precision you set.
How do I convert milligram per square foot back to pound per square kilometer?
Use the reverse factor: 1 milligram per square foot equals 23.7303604 pounds per square kilometer. You can also use the swap control in the converter above to flip the direction instantly.
What is a pound per square kilometer?
Pound per Square Kilometer (lb/km2) is a unit of agriculture.
What is a milligram per square foot?
Milligram per Square foot (mg/ft2) is a unit of agriculture.
Is the pound per square kilometer to milligram per square foot conversion exact?
Yes. Both pound per square kilometer and milligram per square foot are defined by fixed standards rather than physical artifacts, so the factor of 0.04214011009 used above is exact to as many digits as you choose to display.
What's the difference between a yield rate and an application rate?
A yield rate describes how much of a crop is harvested per unit of land area (for example, tonnes per hectare). An application rate describes how much of an input like fertilizer or seed is applied per unit of land area. Both are commonly expressed using the same kind of mass-per-area units.