Liquid application rate.
Gallons per Square foot to Milliliters per Square Kilometer Converter — gal/ft2 to mL/km2
Convert Gallon per Square foot (gal/ft2) to Milliliter per Square Kilometer (mL/km2) using the exact conversion factor (1 gallon per square foot = 40,745,833,330 milliliter per square kilometer). See the formula, worked examples, and conversion table.
Gallons per Square foot to Milliliters per Square Kilometer 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 0.04074583333 / 1e-12.
Liquid Application Rate units are compatible.
Reserved above the conversion cards and below the converter.
About Converting Gallons per Square foot to Milliliters per Square Kilometer
Gallon per Square foot and Milliliter per Square Kilometer 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
milliliters per square kilometer = gallons per square foot × 40745833333.3
This factor comes from each unit's defined relationship to the category's base unit: 1 gallon per square foot equals 0.0407458333333 base units, and 1 milliliter per square kilometer equals 1e-12 base units, so dividing one by the other gives the direct gallon per square foot-to-milliliter per square kilometer factor of 40745833333.3.
Simple example
1 gal/ft2 × 40745833330 = 40,745,833,330 mL/km2
1 gallon per square foot = 40,745,833,330 milliliters per square kilometer.
Real-world example
100 gal/ft2 × 40745833330 = 4.074583e+12 mL/km2
100 gallons per square foot = 4.074583e+12 milliliters per square kilometer.
Conversion table
| Gallon per Square foot (gal/ft2) | Milliliter per Square Kilometer (mL/km2) |
|---|---|
| 1 gal/ft2 | 40,745,833,330 mL/km2 |
| 5 gal/ft2 | 203,729,166,700 mL/km2 |
| 10 gal/ft2 | 407,458,333,300 mL/km2 |
| 50 gal/ft2 | 2.037292e+12 mL/km2 |
| 100 gal/ft2 | 4.074583e+12 mL/km2 |
| 500 gal/ft2 | 2.037292e+13 mL/km2 |
Reverse conversion: Milliliter per Square Kilometer to Gallon per Square foot
1 mL/km2 × 2.454239e-11 = 2.454239e-11 gal/ft2
1 milliliter per square kilometer = 2.454239e-11 gallons per square foot.
gallons per square foot = milliliters per square kilometer × 2.454239e-11
For a page dedicated to this direction, see Milliliter per Square Kilometer to Gallon per Square foot.
Understanding the Gallon per Square foot (gal/ft2)
Liquid application rate.
Understanding the Milliliter per Square Kilometer (mL/km2)
Liquid application rate.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many milliliters per square kilometer are in 1 gallon per square foot?
1 gallon per square foot equals 40,745,833,330 milliliters per square kilometer, using the exact defined conversion factor rather than an estimate.
How do I convert gallon per square foot to milliliter per square kilometer?
Multiply the gallon per square foot value by 40745833330. The converter above does this instantly to whatever precision you set.
How do I convert milliliter per square kilometer back to gallon per square foot?
Use the reverse factor: 1 milliliter per square kilometer equals 2.454239e-11 gallons per square foot. You can also use the swap control in the converter above to flip the direction instantly.
What is a gallon per square foot?
Gallon per Square foot (gal/ft2) is a unit of agriculture.
What is a milliliter per square kilometer?
Milliliter per Square Kilometer (mL/km2) is a unit of agriculture.
Is the gallon per square foot to milliliter per square kilometer conversion exact?
Yes. Both gallon per square foot and milliliter per square kilometer are defined by fixed standards rather than physical artifacts, so the factor of 40745833330 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.