Liquid application rate.
Gallons per Hectare to Gallons per Acre Converter — gal/ha to gal/ac
Convert Gallon per Hectare (gal/ha) to Gallon per Acre (gal/ac) using the exact conversion factor (1 gallon per hectare = 0.4046856422 gallon per acre). See the formula, worked examples, and conversion table.
Gallons per Hectare 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-7 / 9.35395623e-7.
Liquid Application Rate units are compatible.
Reserved above the conversion cards and below the converter.
About Converting Gallons per Hectare to Gallons per Acre
Gallon per Hectare 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 hectare × 0.40468564224
This factor comes from each unit's defined relationship to the category's base unit: 1 gallon per hectare equals 3.785412e-7 base units, and 1 gallon per acre equals 9.353956e-7 base units, so dividing one by the other gives the direct gallon per hectare-to-gallon per acre factor of 0.40468564224.
Simple example
1 gal/ha × 0.4046856422 = 0.4046856422 gal/ac
1 gallon per hectare = 0.4046856422 gallons per acre.
Real-world example
100 gal/ha × 0.4046856422 = 40.46856422 gal/ac
100 gallons per hectare = 40.46856422 gallons per acre.
Conversion table
| Gallon per Hectare (gal/ha) | Gallon per Acre (gal/ac) |
|---|---|
| 1 gal/ha | 0.4046856422 gal/ac |
| 5 gal/ha | 2.023428211 gal/ac |
| 10 gal/ha | 4.046856422 gal/ac |
| 50 gal/ha | 20.23428211 gal/ac |
| 100 gal/ha | 40.46856422 gal/ac |
| 500 gal/ha | 202.3428211 gal/ac |
Reverse conversion: Gallon per Acre to Gallon per Hectare
0.4046856422 gal/ac × 2.471053815 = 0.9999999999 gal/ha
0.4046856422 gallons per acre = 0.9999999999 gallons per hectare.
gallons per hectare = gallons per acre × 2.47105381467
For a page dedicated to this direction, see Gallon per Acre to Gallon per Hectare.
Understanding the Gallon per Hectare (gal/ha)
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 hectare?
1 gallon per hectare equals 0.4046856422 gallons per acre, using the exact defined conversion factor rather than an estimate.
How do I convert gallon per hectare to gallon per acre?
Multiply the gallon per hectare value by 0.4046856422. The converter above does this instantly to whatever precision you set.
How do I convert gallon per acre back to gallon per hectare?
Use the reverse factor: 1 gallon per acre equals 2.471053815 gallons per hectare. You can also use the swap control in the converter above to flip the direction instantly.
What is a gallon per hectare?
Gallon per Hectare (gal/ha) 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 hectare to gallon per acre conversion exact?
Yes. Both gallon per hectare and gallon per acre are defined by fixed standards rather than physical artifacts, so the factor of 0.4046856422 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.