Mass application rate.
Pounds per Acre to Metric tons per Square Meter Converter — lb/ac to t/m2
Convert Pound per Acre (lb/ac) to Metric ton per Square Meter (t/m2) using the exact conversion factor (1 pound per acre = 1.120851e-7 metric ton per square meter). See the formula, worked examples, and conversion table.
Pounds per Acre to Metric tons per Square Meter 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 / 1000.
Mass Application Rate units are compatible.
Reserved above the conversion cards and below the converter.
About Converting Pounds per Acre to Metric tons per Square Meter
Pound per Acre and Metric ton per Square Meter 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
metric tons per square meter = pounds per acre × 1.120851e-7
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 metric ton per square meter equals 1000 base units, so dividing one by the other gives the direct pound per acre-to-metric ton per square meter factor of 1.120851e-7.
Simple example
1 lb/ac × 1.120851e-7 = 1.120851e-7 t/m2
1 pound per acre = 1.120851e-7 metric tons per square meter.
Real-world example
100 lb/ac × 1.120851e-7 = 0.0000112085 t/m2
100 pounds per acre = 0.0000112085 metric tons per square meter.
Conversion table
| Pound per Acre (lb/ac) | Metric ton per Square Meter (t/m2) |
|---|---|
| 1 lb/ac | 1.120851e-7 t/m2 |
| 5 lb/ac | 5.604256e-7 t/m2 |
| 10 lb/ac | 0.0000011209 t/m2 |
| 50 lb/ac | 0.0000056043 t/m2 |
| 100 lb/ac | 0.0000112085 t/m2 |
| 500 lb/ac | 0.0000560426 t/m2 |
Reverse conversion: Metric ton per Square Meter to Pound per Acre
1.120851e-7 t/m2 × 8921791.216 = 0.9999998606 lb/ac
1.120851e-7 metric tons per square meter = 0.9999998606 pounds per acre.
pounds per acre = metric tons per square meter × 8921791.2162
For a page dedicated to this direction, see Metric ton per Square Meter to Pound per Acre.
Understanding the Pound per Acre (lb/ac)
Mass application rate.
Understanding the Metric ton per Square Meter (t/m2)
Mass application rate.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many metric tons per square meter are in 1 pound per acre?
1 pound per acre equals 1.120851e-7 metric tons per square meter, using the exact defined conversion factor rather than an estimate.
How do I convert pound per acre to metric ton per square meter?
Multiply the pound per acre value by 1.120851e-7. The converter above does this instantly to whatever precision you set.
How do I convert metric ton per square meter back to pound per acre?
Use the reverse factor: 1 metric ton per square meter equals 8,921,791.216 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 metric ton per square meter?
Metric ton per Square Meter (t/m2) is a unit of agriculture.
Is the pound per acre to metric ton per square meter conversion exact?
Yes. Both pound per acre and metric ton per square meter are defined by fixed standards rather than physical artifacts, so the factor of 1.120851e-7 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.