Liquid application rate.
Gallons per Square Meter to Quarts per Square Kilometer Converter — gal/m2 to qt/km2
Convert Gallon per Square Meter (gal/m2) to Quart per Square Kilometer (qt/km2) using the exact conversion factor (1 gallon per square meter = 4,000,000 quart per square kilometer). See the formula, worked examples, and conversion table.
Gallons per Square Meter to Quarts 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 0.003785411784 / 9.46352946e-10.
Liquid Application Rate units are compatible.
Reserved above the conversion cards and below the converter.
About Converting Gallons per Square Meter to Quarts per Square Kilometer
Gallon per Square Meter and Quart 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
quarts per square kilometer = gallons per square meter × 4000000
This factor comes from each unit's defined relationship to the category's base unit: 1 gallon per square meter equals 0.003785411784 base units, and 1 quart per square kilometer equals 9.463529e-10 base units, so dividing one by the other gives the direct gallon per square meter-to-quart per square kilometer factor of 4000000.
Simple example
1 gal/m2 × 4000000 = 4,000,000 qt/km2
1 gallon per square meter = 4,000,000 quarts per square kilometer.
Real-world example
100 gal/m2 × 4000000 = 400,000,000 qt/km2
100 gallons per square meter = 400,000,000 quarts per square kilometer.
Conversion table
| Gallon per Square Meter (gal/m2) | Quart per Square Kilometer (qt/km2) |
|---|---|
| 1 gal/m2 | 4,000,000 qt/km2 |
| 5 gal/m2 | 20,000,000 qt/km2 |
| 10 gal/m2 | 40,000,000 qt/km2 |
| 50 gal/m2 | 200,000,000 qt/km2 |
| 100 gal/m2 | 400,000,000 qt/km2 |
| 500 gal/m2 | 2,000,000,000 qt/km2 |
Reverse conversion: Quart per Square Kilometer to Gallon per Square Meter
1 qt/km2 × 2.5e-7 = 2.5e-7 gal/m2
1 quart per square kilometer = 2.5e-7 gallons per square meter.
gallons per square meter = quarts per square kilometer × 2.5e-7
For a page dedicated to this direction, see Quart per Square Kilometer to Gallon per Square Meter.
Understanding the Gallon per Square Meter (gal/m2)
Liquid application rate.
Understanding the Quart per Square Kilometer (qt/km2)
Liquid application rate.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many quarts per square kilometer are in 1 gallon per square meter?
1 gallon per square meter equals 4,000,000 quarts per square kilometer, using the exact defined conversion factor rather than an estimate.
How do I convert gallon per square meter to quart per square kilometer?
Multiply the gallon per square meter value by 4000000. The converter above does this instantly to whatever precision you set.
How do I convert quart per square kilometer back to gallon per square meter?
Use the reverse factor: 1 quart per square kilometer equals 2.5e-7 gallons per square meter. You can also use the swap control in the converter above to flip the direction instantly.
What is a gallon per square meter?
Gallon per Square Meter (gal/m2) is a unit of agriculture.
What is a quart per square kilometer?
Quart per Square Kilometer (qt/km2) is a unit of agriculture.
Is the gallon per square meter to quart per square kilometer conversion exact?
Yes. Both gallon per square meter and quart per square kilometer are defined by fixed standards rather than physical artifacts, so the factor of 4000000 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.