Liquid application rate.
Cubic Meters per Square Kilometer to Gallons per Square mile Converter — m3/km2 to gal/mi2
Convert Cubic Meter per Square Kilometer (m3/km2) to Gallon per Square mile (gal/mi2) using the exact conversion factor (1 cubic meter per square kilometer = 684.2024747 gallon per square mile). See the formula, worked examples, and conversion table.
Cubic Meters per Square Kilometer to Gallons 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.
Liquid application rate.
Result = input x 1e-6 / 1.46155566e-9.
Liquid Application Rate units are compatible.
Reserved above the conversion cards and below the converter.
About Converting Cubic Meters per Square Kilometer to Gallons per Square mile
Cubic Meter per Square Kilometer and Gallon 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 liquid application rate units.
Formula
gallons per square mile = cubic meters per square kilometer × 684.202474691
This factor comes from each unit's defined relationship to the category's base unit: 1 cubic meter per square kilometer equals 0.000001 base units, and 1 gallon per square mile equals 1.461556e-9 base units, so dividing one by the other gives the direct cubic meter per square kilometer-to-gallon per square mile factor of 684.202474691.
Simple example
1 m3/km2 × 684.2024747 = 684.2024747 gal/mi2
1 cubic meter per square kilometer = 684.2024747 gallons per square mile.
Real-world example
100 m3/km2 × 684.2024747 = 68,420.24747 gal/mi2
100 cubic meters per square kilometer = 68,420.24747 gallons per square mile.
Conversion table
| Cubic Meter per Square Kilometer (m3/km2) | Gallon per Square mile (gal/mi2) |
|---|---|
| 1 m3/km2 | 684.2024747 gal/mi2 |
| 5 m3/km2 | 3,421.012373 gal/mi2 |
| 10 m3/km2 | 6,842.024747 gal/mi2 |
| 50 m3/km2 | 34,210.12373 gal/mi2 |
| 100 m3/km2 | 68,420.24747 gal/mi2 |
| 500 m3/km2 | 342,101.2373 gal/mi2 |
Reverse conversion: Gallon per Square mile to Cubic Meter per Square Kilometer
684.2024747 gal/mi2 × 0.001461555661 = 1 m3/km2
684.2024747 gallons per square mile = 1 cubic meters per square kilometer.
cubic meters per square kilometer = gallons per square mile × 0.00146155566077
For a page dedicated to this direction, see Gallon per Square mile to Cubic Meter per Square Kilometer.
Understanding the Cubic Meter per Square Kilometer (m3/km2)
Liquid application rate.
Understanding the Gallon per Square mile (gal/mi2)
Liquid application rate.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many gallons per square mile are in 1 cubic meter per square kilometer?
1 cubic meter per square kilometer equals 684.2024747 gallons per square mile, using the exact defined conversion factor rather than an estimate.
How do I convert cubic meter per square kilometer to gallon per square mile?
Multiply the cubic meter per square kilometer value by 684.2024747. The converter above does this instantly to whatever precision you set.
How do I convert gallon per square mile back to cubic meter per square kilometer?
Use the reverse factor: 1 gallon per square mile equals 0.0014615557 cubic meters per square kilometer. You can also use the swap control in the converter above to flip the direction instantly.
What is a cubic meter per square kilometer?
Cubic Meter per Square Kilometer (m3/km2) is a unit of agriculture.
What is a gallon per square mile?
Gallon per Square mile (gal/mi2) is a unit of agriculture.
Is the cubic meter per square kilometer to gallon per square mile conversion exact?
Yes. Both cubic meter per square kilometer and gallon per square mile are defined by fixed standards rather than physical artifacts, so the factor of 684.2024747 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.