Mass application rate.
Grams per Square mile to Pounds per Acre Converter — g/mi2 to lb/ac
Convert Gram per Square mile (g/mi2) to Pound per Acre (lb/ac) using the exact conversion factor (1 gram per square mile = 0.0000034447 pound per acre). See the formula, worked examples, and conversion table.
Grams per Square mile to Pounds per Acre 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 3.86102159e-10 / 0.0001120851156.
Mass Application Rate units are compatible.
Reserved above the conversion cards and below the converter.
About Converting Grams per Square mile to Pounds per Acre
Gram per Square mile and Pound per Acre 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
pounds per acre = grams per square mile × 0.00000344472284664
This factor comes from each unit's defined relationship to the category's base unit: 1 gram per square mile equals 3.861022e-10 base units, and 1 pound per acre equals 0.000112085115619 base units, so dividing one by the other gives the direct gram per square mile-to-pound per acre factor of 0.00000344472284664.
Simple example
1 g/mi2 × 0.000003444722847 = 0.0000034447 lb/ac
1 gram per square mile = 0.0000034447 pounds per acre.
Real-world example
100 g/mi2 × 0.000003444722847 = 0.0003444723 lb/ac
100 grams per square mile = 0.0003444723 pounds per acre.
Conversion table
| Gram per Square mile (g/mi2) | Pound per Acre (lb/ac) |
|---|---|
| 1 g/mi2 | 0.0000034447 lb/ac |
| 5 g/mi2 | 0.0000172236 lb/ac |
| 10 g/mi2 | 0.0000344472 lb/ac |
| 50 g/mi2 | 0.0001722361 lb/ac |
| 100 g/mi2 | 0.0003444723 lb/ac |
| 500 g/mi2 | 0.0017223614 lb/ac |
Reverse conversion: Pound per Acre to Gram per Square mile
0.0000034447 lb/ac × 290299.1168 = 0.9999933676 g/mi2
0.0000034447 pounds per acre = 0.9999933676 grams per square mile.
grams per square mile = pounds per acre × 290299.1168
For a page dedicated to this direction, see Pound per Acre to Gram per Square mile.
Understanding the Gram per Square mile (g/mi2)
Mass application rate.
Understanding the Pound per Acre (lb/ac)
Mass application rate.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many pounds per acre are in 1 gram per square mile?
1 gram per square mile equals 0.0000034447 pounds per acre, using the exact defined conversion factor rather than an estimate.
How do I convert gram per square mile to pound per acre?
Multiply the gram per square mile value by 0.000003444722847. The converter above does this instantly to whatever precision you set.
How do I convert pound per acre back to gram per square mile?
Use the reverse factor: 1 pound per acre equals 290,299.1168 grams per square mile. You can also use the swap control in the converter above to flip the direction instantly.
What is a gram per square mile?
Gram per Square mile (g/mi2) is a unit of agriculture.
What is a pound per acre?
Pound per Acre (lb/ac) is a unit of agriculture.
Is the gram per square mile to pound per acre conversion exact?
Yes. Both gram per square mile and pound per acre are defined by fixed standards rather than physical artifacts, so the factor of 0.000003444722847 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.