Mass application rate.
Pounds per Acre to Pounds per Hectare Converter — lb/ac to lb/ha
Convert Pound per Acre (lb/ac) to Pound per Hectare (lb/ha) using the exact conversion factor (1 pound per acre = 2.471053815 pound per hectare). See the formula, worked examples, and conversion table.
Pounds per Acre to Pounds per Hectare 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 0.0001120851156 / 4.5359237e-5.
Mass Application Rate units are compatible.
Reserved above the conversion cards and below the converter.
About Converting Pounds per Acre to Pounds per Hectare
Pound per Acre and Pound per Hectare 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 hectare = pounds per acre × 2.47105381467
This factor comes from each unit's defined relationship to the category's base unit: 1 pound per acre equals 0.000112085115619 base units, and 1 pound per hectare equals 0.000045359237 base units, so dividing one by the other gives the direct pound per acre-to-pound per hectare factor of 2.47105381467.
Simple example
1 lb/ac × 2.471053815 = 2.471053815 lb/ha
1 pound per acre = 2.471053815 pounds per hectare.
Real-world example
100 lb/ac × 2.471053815 = 247.1053815 lb/ha
100 pounds per acre = 247.1053815 pounds per hectare.
Conversion table
| Pound per Acre (lb/ac) | Pound per Hectare (lb/ha) |
|---|---|
| 1 lb/ac | 2.471053815 lb/ha |
| 5 lb/ac | 12.35526907 lb/ha |
| 10 lb/ac | 24.71053815 lb/ha |
| 50 lb/ac | 123.5526907 lb/ha |
| 100 lb/ac | 247.1053815 lb/ha |
| 500 lb/ac | 1,235.526907 lb/ha |
Reverse conversion: Pound per Hectare to Pound per Acre
2.471053815 lb/ha × 0.4046856422 = 1 lb/ac
2.471053815 pounds per hectare = 1 pounds per acre.
pounds per acre = pounds per hectare × 0.40468564224
For a page dedicated to this direction, see Pound per Hectare to Pound per Acre.
Understanding the Pound per Acre (lb/ac)
Mass application rate.
Understanding the Pound per Hectare (lb/ha)
Mass application rate.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many pounds per hectare are in 1 pound per acre?
1 pound per acre equals 2.471053815 pounds per hectare, using the exact defined conversion factor rather than an estimate.
How do I convert pound per acre to pound per hectare?
Multiply the pound per acre value by 2.471053815. The converter above does this instantly to whatever precision you set.
How do I convert pound per hectare back to pound per acre?
Use the reverse factor: 1 pound per hectare equals 0.4046856422 pounds per acre. You can also use the swap control in the converter above to flip the direction instantly.
What is a pound per acre?
Pound per Acre (lb/ac) is a unit of agriculture.
What is a pound per hectare?
Pound per Hectare (lb/ha) is a unit of agriculture.
Is the pound per acre to pound per hectare conversion exact?
Yes. Both pound per acre and pound per hectare are defined by fixed standards rather than physical artifacts, so the factor of 2.471053815 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.