Liquid application rate.
Cubic Meters per Square Kilometer to Cubic Meters per Acre Converter — m3/km2 to m3/ac
Convert Cubic Meter per Square Kilometer (m3/km2) to Cubic Meter per Acre (m3/ac) using the exact conversion factor (1 cubic meter per square kilometer = 0.0040468564 cubic meter per acre). See the formula, worked examples, and conversion table.
Cubic Meters per Square Kilometer to Cubic Meters 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 1e-6 / 0.0002471053815.
Liquid Application Rate units are compatible.
Reserved above the conversion cards and below the converter.
About Converting Cubic Meters per Square Kilometer to Cubic Meters per Acre
Cubic Meter per Square Kilometer and Cubic Meter 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
cubic meters per acre = cubic meters per square kilometer × 0.0040468564224
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 cubic meter per acre equals 0.000247105381467 base units, so dividing one by the other gives the direct cubic meter per square kilometer-to-cubic meter per acre factor of 0.0040468564224.
Simple example
1 m3/km2 × 0.004046856422 = 0.0040468564 m3/ac
1 cubic meter per square kilometer = 0.0040468564 cubic meters per acre.
Real-world example
100 m3/km2 × 0.004046856422 = 0.4046856422 m3/ac
100 cubic meters per square kilometer = 0.4046856422 cubic meters per acre.
Conversion table
| Cubic Meter per Square Kilometer (m3/km2) | Cubic Meter per Acre (m3/ac) |
|---|---|
| 1 m3/km2 | 0.0040468564 m3/ac |
| 5 m3/km2 | 0.0202342821 m3/ac |
| 10 m3/km2 | 0.0404685642 m3/ac |
| 50 m3/km2 | 0.2023428211 m3/ac |
| 100 m3/km2 | 0.4046856422 m3/ac |
| 500 m3/km2 | 2.023428211 m3/ac |
Reverse conversion: Cubic Meter per Acre to Cubic Meter per Square Kilometer
0.0040468564 m3/ac × 247.1053815 = 0.9999999945 m3/km2
0.0040468564 cubic meters per acre = 0.9999999945 cubic meters per square kilometer.
cubic meters per square kilometer = cubic meters per acre × 247.105381467
For a page dedicated to this direction, see Cubic Meter per Acre to Cubic Meter per Square Kilometer.
Understanding the Cubic Meter per Square Kilometer (m3/km2)
Liquid application rate.
Understanding the Cubic Meter per Acre (m3/ac)
Liquid application rate.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many cubic meters per acre are in 1 cubic meter per square kilometer?
1 cubic meter per square kilometer equals 0.0040468564 cubic meters per acre, using the exact defined conversion factor rather than an estimate.
How do I convert cubic meter per square kilometer to cubic meter per acre?
Multiply the cubic meter per square kilometer value by 0.004046856422. The converter above does this instantly to whatever precision you set.
How do I convert cubic meter per acre back to cubic meter per square kilometer?
Use the reverse factor: 1 cubic meter per acre equals 247.1053815 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 cubic meter per acre?
Cubic Meter per Acre (m3/ac) is a unit of agriculture.
Is the cubic meter per square kilometer to cubic meter per acre conversion exact?
Yes. Both cubic meter per square kilometer and cubic meter 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.