Mass application rate.
Ounces per Acre to Pounds per Square mile Converter — oz/ac to lb/mi2
Convert Ounce per Acre (oz/ac) to Pound per Square mile (lb/mi2) using the exact conversion factor (1 ounce per acre = 40 pound per square mile). See the formula, worked examples, and conversion table.
Ounces per Acre to Pounds per Square mile 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 7.00531973e-6 / 1.75132993e-7.
Mass Application Rate units are compatible.
Reserved above the conversion cards and below the converter.
About Converting Ounces per Acre to Pounds per Square mile
Ounce per Acre and Pound per Square mile 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 square mile = ounces per acre × 40
This factor comes from each unit's defined relationship to the category's base unit: 1 ounce per acre equals 0.00000700531972622 base units, and 1 pound per square mile equals 1.75133e-7 base units, so dividing one by the other gives the direct ounce per acre-to-pound per square mile factor of 40.
Simple example
1 oz/ac × 40 = 40 lb/mi2
1 ounce per acre = 40 pounds per square mile.
Real-world example
100 oz/ac × 40 = 4,000 lb/mi2
100 ounces per acre = 4,000 pounds per square mile.
Conversion table
| Ounce per Acre (oz/ac) | Pound per Square mile (lb/mi2) |
|---|---|
| 1 oz/ac | 40 lb/mi2 |
| 5 oz/ac | 200 lb/mi2 |
| 10 oz/ac | 400 lb/mi2 |
| 50 oz/ac | 2,000 lb/mi2 |
| 100 oz/ac | 4,000 lb/mi2 |
| 500 oz/ac | 20,000 lb/mi2 |
Reverse conversion: Pound per Square mile to Ounce per Acre
40 lb/mi2 × 0.025 = 1 oz/ac
40 pounds per square mile = 1 ounces per acre.
ounces per acre = pounds per square mile × 0.025
For a page dedicated to this direction, see Pound per Square mile to Ounce per Acre.
Understanding the Ounce per Acre (oz/ac)
Mass application rate.
Understanding the Pound per Square mile (lb/mi2)
Mass application rate.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many pounds per square mile are in 1 ounce per acre?
1 ounce per acre equals 40 pounds per square mile, using the exact defined conversion factor rather than an estimate.
How do I convert ounce per acre to pound per square mile?
Multiply the ounce per acre value by 40. The converter above does this instantly to whatever precision you set.
How do I convert pound per square mile back to ounce per acre?
Use the reverse factor: 1 pound per square mile equals 0.025 ounces per acre. You can also use the swap control in the converter above to flip the direction instantly.
What is a ounce per acre?
Ounce per Acre (oz/ac) is a unit of agriculture.
What is a pound per square mile?
Pound per Square mile (lb/mi2) is a unit of agriculture.
Is the ounce per acre to pound per square mile conversion exact?
Yes. Both ounce per acre and pound per square mile are defined by fixed standards rather than physical artifacts, so the factor of 40 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.