Liquid application rate.
Gallons per Square Kilometer to Gallons per Acre Converter — gal/km2 to gal/ac
Convert Gallon per Square Kilometer (gal/km2) to Gallon per Acre (gal/ac) using the exact conversion factor (1 gallon per square kilometer = 0.0040468564 gallon per acre). See the formula, worked examples, and conversion table.
Gallons per Square Kilometer to Gallons 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.
Liquid application rate.
Result = input x 3.78541178e-9 / 9.35395623e-7.
Liquid Application Rate units are compatible.
Reserved above the conversion cards and below the converter.
About Converting Gallons per Square Kilometer to Gallons per Acre
Gallon per Square Kilometer and Gallon 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 liquid application rate units.
Formula
gallons per acre = gallons per square kilometer × 0.0040468564224
This factor comes from each unit's defined relationship to the category's base unit: 1 gallon per square kilometer equals 3.785412e-9 base units, and 1 gallon per acre equals 9.353956e-7 base units, so dividing one by the other gives the direct gallon per square kilometer-to-gallon per acre factor of 0.0040468564224.
Simple example
1 gal/km2 × 0.004046856422 = 0.0040468564 gal/ac
1 gallon per square kilometer = 0.0040468564 gallons per acre.
Real-world example
100 gal/km2 × 0.004046856422 = 0.4046856422 gal/ac
100 gallons per square kilometer = 0.4046856422 gallons per acre.
Conversion table
| Gallon per Square Kilometer (gal/km2) | Gallon per Acre (gal/ac) |
|---|---|
| 1 gal/km2 | 0.0040468564 gal/ac |
| 5 gal/km2 | 0.0202342821 gal/ac |
| 10 gal/km2 | 0.0404685642 gal/ac |
| 50 gal/km2 | 0.2023428211 gal/ac |
| 100 gal/km2 | 0.4046856422 gal/ac |
| 500 gal/km2 | 2.023428211 gal/ac |
Reverse conversion: Gallon per Acre to Gallon per Square Kilometer
0.0040468564 gal/ac × 247.1053815 = 0.9999999945 gal/km2
0.0040468564 gallons per acre = 0.9999999945 gallons per square kilometer.
gallons per square kilometer = gallons per acre × 247.105381467
For a page dedicated to this direction, see Gallon per Acre to Gallon per Square Kilometer.
Understanding the Gallon per Square Kilometer (gal/km2)
Liquid application rate.
Understanding the Gallon per Acre (gal/ac)
Liquid application rate.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many gallons per acre are in 1 gallon per square kilometer?
1 gallon per square kilometer equals 0.0040468564 gallons per acre, using the exact defined conversion factor rather than an estimate.
How do I convert gallon per square kilometer to gallon per acre?
Multiply the gallon per square kilometer value by 0.004046856422. The converter above does this instantly to whatever precision you set.
How do I convert gallon per acre back to gallon per square kilometer?
Use the reverse factor: 1 gallon per acre equals 247.1053815 gallons per square kilometer. You can also use the swap control in the converter above to flip the direction instantly.
What is a gallon per square kilometer?
Gallon per Square Kilometer (gal/km2) is a unit of agriculture.
What is a gallon per acre?
Gallon per Acre (gal/ac) is a unit of agriculture.
Is the gallon per square kilometer to gallon per acre conversion exact?
Yes. Both gallon per square kilometer and gallon per acre are defined by fixed standards rather than physical artifacts, so the factor of 0.004046856422 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.